Dr Amol Choudhary

Australian Research Council (ARC) Discovery Early Career Research Award (DECRA) Fellow

A28 - Physics Building
The University of Sydney

Telephone +61 2 8627 5129
Fax +61 2 9351 7726

Website Google Scholar Profile

Biographical details

Amol is an ARC DECRA Fellow in the School of Physics. He graduated from the Delhi College of Engineering, India, with a BEng in Electronics and Communications. He received an Erasmus Mundus Scholarship to pursue an MSc in Photonics from the Gent University, Belgium; VUB, Belgium and the University of St. Andrews, UK. During his time at St. Andrews, he worked on the analogues of black holes in optical fibers.He then received an EPSRC scholarship to carry out his doctoral research at the Optoelectronics Research Centre (ORC), University of Southampton, UK. During the course of his PhD, he developed ultrafast waveguide laser sources with repetition rates of up to 15 GHz for applications in non-linear microscopy and optical frequency metrology. After graduating , he received an EPSRC doctoral prize fellowship to work on power-scaling of mode-locked waveguide lasers and using graphene in pulsed laser systems at the ORC. He joined the school of Phyiscs in May 2015. For his DECRA project, he is developing novel on-chip frequency combs and he also collaborates with Prof. Eggleton in the area of on-chip Brillouin Processing. He has more than 75 publications including 22 Journal papers and 5 post-deadline presentations.

Research interests

His research areas of interest are photon-phonon interactions, laser physics, integrated optics, non-linear optics, ultrafast optics, microwave photonics, and nonlinear signal processing.

Teaching and supervision

Course(s) Taught:

PHY1001

Students Supervised:

Shuqing Cen, 2017

Ruoao Yang, 2017

In the media

2 papers presented at the Prestigious CLEO Pacific Rim Postdeadline Session

http://www.cudos.org.au/news/2017-08-02-cudos-postdeadline-paper-at-cleo-rim-singapore.shtml

Where Science meets Engineering

http://www.cudos.org.au/news/2017-05-22_photonicfilter.shtml

Photonics Breakthrough paving the way for improved wireless communication systems

DECRA Award highlighted on the University of Sydney page:

http://sydney.edu.au/news-opinion/news/2016/11/01/more-than--30m-for-critical-research-that-benefits-all-australia.html

Breakthrough result in the area of optical communications which will dramatically improve internet capacity:

http://sydney.edu.au/news/physics/1737.html?newsstoryid=15955

Postdeadline Paper at ANZCOP 2015:

http://www.cudos.org.au/news/2015-12-09_Postdoc.shtml

Presenting Research at the UK parliament:

http://www.orc.soton.ac.uk/835.html

SPIE Scholarship:

http://www.fpse.soton.ac.uk/news/4262

Selected grants

2017

  • On-chip generation and processing of high-power multi-GHz frequency combs; Choudhary A; Australian Research Council (ARC)/Discovery Early Career Researcher Award (DECRA).

2016

  • High-speed RF generation and detection architecture; Eggleton B, Stiller B, Choudhary A; DVC Research/Equipment Grant.
  • Harnessing giant Brillouin gain for advanced integrated microwave signal processing; Eggleton B, Choudhary A, Marpaung D; Asian Office of Aerospace Research and Development (AOARD) - US Air Force/Research Grant.

Selected publications

Download citations: PDF RTF Endnote

Journals

  • Choudhary, A., Morrison, B., Aryanfar, I., Shahnia, S., Pagani, M., Liu, Y., Vu, K., Madden, S., Marpaung, D., Eggleton, B. (2017). Advanced Integrated Microwave Signal Processing with Giant On-Chip Brillouin Gain. Journal of Lightwave Technology, 35(4), 846-854. [More Information]
  • Liu, Y., Marpaung, D., Choudhary, A., Eggleton, B. (2016). Lossless and high-resolution RF photonic notch filter. Optics Letters, 41(22), 5306-5309. [More Information]
  • Aryanfar, I., Choudhary, A., Shahnia, S., Pagani, M., Liu, Y., Marpaung, D., Eggleton, B. (2016). Signal interference RF photonic bandstop filter. Optics Express, 24(13), 14995-15004. [More Information]
  • Choudhary, A., Aryanfar, I., Shahnia, S., Morrison, B., Vu, K., Madden, S., Luther-Davis, B., Marpaung, D., Eggleton, B. (2016). Tailoring of the Brillouin gain for on-chip widely tunable and reconfigurable broadband microwave photonic filters. Optics Letters, 41(3), 436-439. [More Information]
  • Shepherd, D., Choudhary, A., Lagatsky, A., Kannan, P., Beecher, S., Eason, R., Mackenzie, J., Feng, X., Sibbett, W., Brown, C. (2016). Ultrafast High-Repetition-Rate Waveguide Lasers. IEEE Journal of Selected Topics in Quantum Electronics, 22(2), 1-9. [More Information]
  • Choudhary, A., Beecher, S., Dhingra, S., D'Urso, B., Parsonage, T., Grant-Jacob, J., Hua, P., Mackenzie, J., Eason, R., Shepherd, D. (2015). 456-mW graphene Q-switched Yb:yttria waveguide laser by evanescent-field interaction. Optics Letters, 40(9), 1912-1915. [More Information]
  • Choudhary, A., Beecher, S., Dhingra, S., D’Urso, B., Parsonage, T., Grant-Jacob, J., Hua, P., Mackenzie, J., Eason, R., Shepherd, D. (2015). 456-mW graphene Q-switched Yb:yttria waveguide laser by evanescent-field interaction. Optics Letters, 40(9), 1912-1915. [More Information]
  • Butt, M., Sole, R., Pujol, M., Rodenas, A., Lifante, G., Choudhary, A., Murugan, G., Shepherd, D., Wilkinson, J., Aguilo, M., et al (2015). Fabrication of Y-Splitters and Mach–Zehnder Structures on (Yb,Nb):RbTiOPO₄/RbTiOPO₄ Epitaxial Layers by Reactive Ion Etching. Journal of Lightwave Technology, 33(9), 1863-1871. [More Information]
  • Choudhary, A., Dhingra, S., D'Urso, B., Kannan, P., Shepherd, D. (2015). Graphene Q-Switched Mode-Locked and Q-Switched Ion-Exchanged Waveguide Lasers. IEEE Photonics Technology Letters, 27(6), 646-649. [More Information]
  • Parsonage, T., Beecher, S., Choudhary, A., Grant-Jacob, J., Hua, P., Mackenzie, J., Shepherd, D., Eason, R. (2015). Pulsed laser deposited diode-pumped 7.4 W Yb:Lu₂O₃ planar waveguide laser. Optics Express, 23(25), 31691-31697. [More Information]
  • Choudhary, A., Dhingra, S., D'Urso, B., Parsonage, T., Sloyan, K., Eason, R., Shepherd, D. (2014). Q-switched operation of a pulsed-laser-deposited Yb:Y₂O₃ waveguide using graphene as a saturable absorber. Optics Letters, 39(15), 4325-4328. [More Information]
  • Choudhary, A., Lagatsky, A., Zhang, Z., Zhou, K., Wang, Q., Hogg, R., Kannan, P., Rafailov, E., Sibbett, W., Brown, C., et al (2013). A diode-pumped 1.5 mu-m waveguide laser mode-locked at 6.8 GHz by a quantum dot SESAM. Laser Physics Letters, 10(10), 1-4. [More Information]
  • Cugat, J., Choudhary, A., Sole, R., Massons, J., Shepherd, D., Diaz, F., Aguilo, M. (2013). Ar+ion milling rib waveguides on nonlinear optical (Yb,Nb):RTP/RTP epitaxial layers. Optical Materials Express, 3(11), 1912-1917. [More Information]
  • Lagatsky, A., Choudhary, A., Kannan, P., Shepherd, D., Sibbett, W., Brown, C. (2013). Fundamentally mode-locked, femtosecond waveguide oscillators with multi-gigahertz repetition frequencies up to 15 GHz. Optics Express, 21(17), 19608-19614. [More Information]
  • Kannan, P., Choudhary, A., Mills, B., Feng, X., Shepherd, D. (2013). Growth of PbSe Quantum Dots Within High-Index Lead-Phosphate Glass for Infrared Saturable Absorbers. Journal of the American Ceramic Society, 96(1), 197-200. [More Information]
  • Choudhary, A., Kannan, P., Mackenzie, J., Feng, X., Shepherd, D. (2013). Ion-exchanged Tm3+: Glass channel waveguide laser. Optics Letters, 38(7), 1146-1148. [More Information]
  • Choudhary, A., Cugat, J., Kannan, P., Sole, R., Diaz, F., Aguilo, M., Chong, H., Shepherd, D. (2013). Single-mode rib waveguides in (Yb,Nb): RbTiOPO4 by reactive ion etching. Journal of Physics D: Applied Physics, 46, 1-6. [More Information]
  • Choudhary, A., Lagatsky, A., Kannan, P., Sibbett, W., Brown, C., Shepherd, D. (2012). Diode-pumped femtosecond solid-state waveguide laser with a 4.9 GHz pulse repetition rate. Optics Letters, 37(21), 4416-4418. [More Information]
  • Choudhary, A., Konig, F. (2012). Efficient frequency shifting of dispersive waves at solitons. Optics Express, 20(5), 5538-5546. [More Information]

Conferences

  • Aryanfar, I., Choudhary, A., Liu, Y., Vu, K., Ma, P., Choi, D., Madden, S., Marpaung, D., Eggleton, B. (2017). 47 dB Net on-chip Brillouin gain for true time delay applicationsc. CLEO: Science and Innovations, CLEO_SI 2017, Washington, DC: OSA - The Optical Society. [More Information]
  • Pelusi, M., Choudhary, A., Inoue, T., Marpaung, D., Eggleton, B., Namiki, S. (2017). Regeneration of noise limited frequency comb lines for 64-QAM by brillouin gain seeded via SSB modulation. 2017 Optical Fiber Communications Conference and Exhibition (OFC 2017), Los Angeles: (IEEE) Institute of Electrical and Electronics Engineers.
  • Liu, Y., Choudhary, A., Marpaung, D., Eggleton, B. (2016). Delay amplification in a broadband Brillouin-based microwave photonic delay line. Australian Conference on Optical Fibre Technology (ACOFT 2016), Washington, D.C.: OSA (Optical Society America). [More Information]
  • Liu, Y., Choudhary, A., Marpaung, D., Eggleton, B. (2016). Dynamic optical tuning of an on-chip RF photonic delay line. Australian Conference on Optical Fibre Technology (ACOFT 2016), Washington, D.C.: OSA (Optical Society America). [More Information]
  • Liu, Y., Marpaung, D., Choudhary, A., Eggleton, B. (2016). Lossless and high-resolution RF photonic filter. 2016 IEEE Avionics and Vehicle Fiber-Optics and Photonics Conference (AVFOP 2016), Long Beach: (IEEE) Institute of Electrical and Electronics Engineers. [More Information]
  • Pelusi, M., Choudhary, A., Inoue, T., Marpaung, D., Eggleton, B., Tan, H., Solis-Trapala, K., Namiki, S. (2016). Low noise, regeneration of optical frequency comb-lines for 64QAM enabled by SBS gain. 21st OptoElectronics and Communications Conference (OECC 2016) held jointly with 2016 International Conference on Photonics in Switching (PS 2016), Niigata: (IEEE) Institute of Electrical and Electronics Engineers.
  • Choudhary, A., Liu, Y., Morrison, B., Aryanfar, I., Marpaung, D., Eggleton, B., Vu, K., Choi, D., Ma, P., Madden, S. (2016). On-chip EIT-like RF photonic signal processor. 2016 IEEE International Topical Meeting on Microwave Photonics (MWP 2016), Piscataway: (IEEE) Institute of Electrical and Electronics Engineers. [More Information]
  • Marpaung, D., Aryanfar, I., Casas Bedoya, A., Choudhary, A., Jiang, H., Morrison, B., Pagani, M., Shahnia, S., Vu, K., Choi, D., Eggleton, B., et al (2016). On-Chip Stimulated Brillouin Scattering for Microwave Photonic Signal Processing. 2016 Optical Fiber Communication Conference (OFC 2016), Anaheim: Optical Society of America.
  • Choudhary, A., Aryanfar, I., Shahnia, S., Morrison, B., Vu, K., Madden, S., Luther-Davies, B., Marpaung, D., Eggleton, B. (2016). On-chip tunable microwave photonic filters with a reconfigurable bandwidth of up to 440 MHz. 2016 Optical Fiber Communication Conference (OFC 2016), Anaheim: Optical Society of America. [More Information]
  • Choudhary, A., Aryanfar, I., Shahnia, S., Morrison, B., Pagani, M., Liu, Y., Vu, K., Madden, S., Luther-Davies, B., Marpaung, D., Eggleton, B. (2016). Reconfigurable and frequency-agile on-chip microwave photonic bandpass and bandstop filters using stimulated Brillouin scattering. Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications X, Bellingham: SPIE Society of Photo-Optical Instrumentation Engineers. [More Information]
  • Aryanfar, I., Choudhary, A., Shahnia, S., Pagani, M., Liu, Y., Vu, K., Madden, S., Luther-Davies, B., Eggleton, B., Marpaung, D. (2016). Reconfigurable microwave bandstop filter based on stimulated Brillouin scattering in a photonic chip. 2016 Conference on Lasers and Electro-Optics (CLEO 2016), San Jose: OSA (Optical Society America).
  • Choudhary, A., Liu, Y., Marpaung, D., Eggleton, B. (2016). Spectral narrowing of RF photonic filters using Brillouin gain shaping and signal interference. Australian Conference on Optical Fibre Technology (ACOFT 2016), Washington, D.C.: OSA (Optical Society America). [More Information]
  • Lancaster, A., Choudhary, A., Jha, N., Mary, R., Shepherd, D., Kar, A. (2015). 1.94 GHz CW modelocked ytterbium-doped bismuthate glass waveguide laser. 2015 Advanced Solid State Lasers Conference and Exhibition (ASSL), Washington: Optical Society of America. [More Information]
  • Parsonage, T., Beecher, S., Choudhary, A., Grant-Jacob, J., Hua, P., Mackenzie, J., Shepherd, D., Eason, R. (2015). 7 W Diode-End-Pumped PLD-Grown Yb:Lu2O3 Planar Waveguide Laser. 2015 Advanced Solid State Lasers Conference and Exhibition (ASSL), Washington: Optical Society of America. [More Information]
  • Parsonage, T., Choudhary, A., Beecher, S., Grant-Jacob, J., Hua, P., Mackenzie, J., Shepherd, D., Eason, R. (2015). Comparative study of rare-earth doped sesquioxides grown by pulsed laser deposition and their performance as planar waveguide lasers. 2015 European Conference on Lasers and Electro-Optics - European Quantum Electronics Conference, Washington, D.C: Optical Society of America.
  • Beecher, S., Grant-Jacob, J., Parsonage, T., Hua, P., Choudhary, A., Mackenzie, J., Shepherd, D., Eason, R. (2015). Growth and Initial Experiments Demonstrating Watt Level Output From Yb:YAG Planar Waveguides Grown by Pulsed Laser Deposition. 2015 Advanced Solid State Lasers Conference and Exhibition (ASSL), Washington: Optical Society of America. [More Information]
  • Butt, M., Sole, R., Pujol, M., Rodenas, A., Lifante, G., Wilkinson, J., Choudhary, A., Murugan, G., Shepherd, D., Aguilo, M., et al (2014). Fabrication of Y-Splitters and Mach-Zehnder interferometers on (Yb, Nb):RbTiOPO4/RbTiOPO4 epitaxial layers by Reactive Ion Etching and on RbTiOPO4 by Cs+ diffusion. 17th European Conference on Integrated Optics, Nice, France: European Conference on Integrated Optics.
  • Choudhary, A., Lagatsky, A., Zhang, Z., Zhou, K., Wang, Q., Hogg, R., Kannan, P., Rafailov, E., Resan, B., Oehler, A., et al (2014). Near-infrared mode-locked waveguide lasers with multi-GHz repetition rates. Solid State Lasers XXIII: Technology and Devices, San Francisco: SPIE Society of Photo-Optical Instrumentation Engineers. [More Information]
  • Choudhary, A., Dhingra, S., D'Urso, B., Parsonage, T., Sloyan, K., Eason, R., Shepherd, D. (2014). PLD-grown Yb:Y2O3 waveguide laser Q-switched by a graphene saturable absorber. 17th European Conference on Integrated Optics, Nice, France: European Conference on Integrated Optics.
  • Choudhary, A., Lagatsky, A., Kannan, P., Brown, C., Shepherd, D. (2014). Towards an all-integrated MOPA configuration using Yb-doped ion-exchanged waveguides. Photonics 2014: 12th International Conference on Fiber Optics and Photonics, Washington, D.C: Optical Society of America. [More Information]
  • Kannan, P., Choudhary, A., Mackenzie, J., Feng, X., Shepherd, D. (2013). An ion-exchanged Thulium-doped germanate glass channel waveguide laser operating near 1.9 µm. 2013 Conference on Lasers and Electro-Optics Europe, Munich: IEEE. [More Information]
  • Choudhary, A., Lagatsky, A., Kannan, P., Sibbett, W., Brown, C., Shepherd, D. (2013). Fundamentally mode-locked Yb3+- doped glass waveguide lasers with repetition rate of up to 15.2 GHz. 2013 Conference on Lasers and Electro-Optics Europe, Munich: IEEE. [More Information]
  • Choudhary, A., Bolanos, W., Kannan, P., Carvajal, J., Aguilo, M., Diaz, F., Shepherd, D. (2013). Low-threshold, mirrorless emission at 981 nm in an Yb,Gd,Lu:KYW inverted rib waveguide laser. Solid State Lasers XXII: Technology and Devices, Bellingham: SPIE Society of Photo-Optical Instrumentation Engineers. [More Information]
  • Choudhary, A., Cugat, J., Kannan, P., Sole, R., Diaz, F., Aguilo, M., Chong, H., Shepherd, D. (2013). On the reactive ion etching of RbTiOPO4. 2013 Conference on Lasers and Electro-Optics Europe, Munich: IEEE.
  • Kannan, P., Choudhary, A., Mills, B., Leonard, V., Hewak, D., Feng, X., Shepherd, D. (2013). PbSe quantum dots grown in a high-index low-melting-temperature glass for infrared laser applications. Optical Components and Materials X, Bellingham: SPIE Society of Photo-Optical Instrumentation Engineers. [More Information]

2017

  • Aryanfar, I., Choudhary, A., Liu, Y., Vu, K., Ma, P., Choi, D., Madden, S., Marpaung, D., Eggleton, B. (2017). 47 dB Net on-chip Brillouin gain for true time delay applicationsc. CLEO: Science and Innovations, CLEO_SI 2017, Washington, DC: OSA - The Optical Society. [More Information]
  • Choudhary, A., Morrison, B., Aryanfar, I., Shahnia, S., Pagani, M., Liu, Y., Vu, K., Madden, S., Marpaung, D., Eggleton, B. (2017). Advanced Integrated Microwave Signal Processing with Giant On-Chip Brillouin Gain. Journal of Lightwave Technology, 35(4), 846-854. [More Information]
  • Pelusi, M., Choudhary, A., Inoue, T., Marpaung, D., Eggleton, B., Namiki, S. (2017). Regeneration of noise limited frequency comb lines for 64-QAM by brillouin gain seeded via SSB modulation. 2017 Optical Fiber Communications Conference and Exhibition (OFC 2017), Los Angeles: (IEEE) Institute of Electrical and Electronics Engineers.

2016

  • Liu, Y., Choudhary, A., Marpaung, D., Eggleton, B. (2016). Delay amplification in a broadband Brillouin-based microwave photonic delay line. Australian Conference on Optical Fibre Technology (ACOFT 2016), Washington, D.C.: OSA (Optical Society America). [More Information]
  • Liu, Y., Choudhary, A., Marpaung, D., Eggleton, B. (2016). Dynamic optical tuning of an on-chip RF photonic delay line. Australian Conference on Optical Fibre Technology (ACOFT 2016), Washington, D.C.: OSA (Optical Society America). [More Information]
  • Liu, Y., Marpaung, D., Choudhary, A., Eggleton, B. (2016). Lossless and high-resolution RF photonic filter. 2016 IEEE Avionics and Vehicle Fiber-Optics and Photonics Conference (AVFOP 2016), Long Beach: (IEEE) Institute of Electrical and Electronics Engineers. [More Information]
  • Liu, Y., Marpaung, D., Choudhary, A., Eggleton, B. (2016). Lossless and high-resolution RF photonic notch filter. Optics Letters, 41(22), 5306-5309. [More Information]
  • Pelusi, M., Choudhary, A., Inoue, T., Marpaung, D., Eggleton, B., Tan, H., Solis-Trapala, K., Namiki, S. (2016). Low noise, regeneration of optical frequency comb-lines for 64QAM enabled by SBS gain. 21st OptoElectronics and Communications Conference (OECC 2016) held jointly with 2016 International Conference on Photonics in Switching (PS 2016), Niigata: (IEEE) Institute of Electrical and Electronics Engineers.
  • Choudhary, A., Liu, Y., Morrison, B., Aryanfar, I., Marpaung, D., Eggleton, B., Vu, K., Choi, D., Ma, P., Madden, S. (2016). On-chip EIT-like RF photonic signal processor. 2016 IEEE International Topical Meeting on Microwave Photonics (MWP 2016), Piscataway: (IEEE) Institute of Electrical and Electronics Engineers. [More Information]
  • Marpaung, D., Aryanfar, I., Casas Bedoya, A., Choudhary, A., Jiang, H., Morrison, B., Pagani, M., Shahnia, S., Vu, K., Choi, D., Eggleton, B., et al (2016). On-Chip Stimulated Brillouin Scattering for Microwave Photonic Signal Processing. 2016 Optical Fiber Communication Conference (OFC 2016), Anaheim: Optical Society of America.
  • Choudhary, A., Aryanfar, I., Shahnia, S., Morrison, B., Vu, K., Madden, S., Luther-Davies, B., Marpaung, D., Eggleton, B. (2016). On-chip tunable microwave photonic filters with a reconfigurable bandwidth of up to 440 MHz. 2016 Optical Fiber Communication Conference (OFC 2016), Anaheim: Optical Society of America. [More Information]
  • Choudhary, A., Aryanfar, I., Shahnia, S., Morrison, B., Pagani, M., Liu, Y., Vu, K., Madden, S., Luther-Davies, B., Marpaung, D., Eggleton, B. (2016). Reconfigurable and frequency-agile on-chip microwave photonic bandpass and bandstop filters using stimulated Brillouin scattering. Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications X, Bellingham: SPIE Society of Photo-Optical Instrumentation Engineers. [More Information]
  • Aryanfar, I., Choudhary, A., Shahnia, S., Pagani, M., Liu, Y., Vu, K., Madden, S., Luther-Davies, B., Eggleton, B., Marpaung, D. (2016). Reconfigurable microwave bandstop filter based on stimulated Brillouin scattering in a photonic chip. 2016 Conference on Lasers and Electro-Optics (CLEO 2016), San Jose: OSA (Optical Society America).
  • Aryanfar, I., Choudhary, A., Shahnia, S., Pagani, M., Liu, Y., Marpaung, D., Eggleton, B. (2016). Signal interference RF photonic bandstop filter. Optics Express, 24(13), 14995-15004. [More Information]
  • Choudhary, A., Liu, Y., Marpaung, D., Eggleton, B. (2016). Spectral narrowing of RF photonic filters using Brillouin gain shaping and signal interference. Australian Conference on Optical Fibre Technology (ACOFT 2016), Washington, D.C.: OSA (Optical Society America). [More Information]
  • Choudhary, A., Aryanfar, I., Shahnia, S., Morrison, B., Vu, K., Madden, S., Luther-Davis, B., Marpaung, D., Eggleton, B. (2016). Tailoring of the Brillouin gain for on-chip widely tunable and reconfigurable broadband microwave photonic filters. Optics Letters, 41(3), 436-439. [More Information]
  • Shepherd, D., Choudhary, A., Lagatsky, A., Kannan, P., Beecher, S., Eason, R., Mackenzie, J., Feng, X., Sibbett, W., Brown, C. (2016). Ultrafast High-Repetition-Rate Waveguide Lasers. IEEE Journal of Selected Topics in Quantum Electronics, 22(2), 1-9. [More Information]

2015

  • Lancaster, A., Choudhary, A., Jha, N., Mary, R., Shepherd, D., Kar, A. (2015). 1.94 GHz CW modelocked ytterbium-doped bismuthate glass waveguide laser. 2015 Advanced Solid State Lasers Conference and Exhibition (ASSL), Washington: Optical Society of America. [More Information]
  • Choudhary, A., Beecher, S., Dhingra, S., D'Urso, B., Parsonage, T., Grant-Jacob, J., Hua, P., Mackenzie, J., Eason, R., Shepherd, D. (2015). 456-mW graphene Q-switched Yb:yttria waveguide laser by evanescent-field interaction. Optics Letters, 40(9), 1912-1915. [More Information]
  • Choudhary, A., Beecher, S., Dhingra, S., D’Urso, B., Parsonage, T., Grant-Jacob, J., Hua, P., Mackenzie, J., Eason, R., Shepherd, D. (2015). 456-mW graphene Q-switched Yb:yttria waveguide laser by evanescent-field interaction. Optics Letters, 40(9), 1912-1915. [More Information]
  • Parsonage, T., Beecher, S., Choudhary, A., Grant-Jacob, J., Hua, P., Mackenzie, J., Shepherd, D., Eason, R. (2015). 7 W Diode-End-Pumped PLD-Grown Yb:Lu2O3 Planar Waveguide Laser. 2015 Advanced Solid State Lasers Conference and Exhibition (ASSL), Washington: Optical Society of America. [More Information]
  • Parsonage, T., Choudhary, A., Beecher, S., Grant-Jacob, J., Hua, P., Mackenzie, J., Shepherd, D., Eason, R. (2015). Comparative study of rare-earth doped sesquioxides grown by pulsed laser deposition and their performance as planar waveguide lasers. 2015 European Conference on Lasers and Electro-Optics - European Quantum Electronics Conference, Washington, D.C: Optical Society of America.
  • Butt, M., Sole, R., Pujol, M., Rodenas, A., Lifante, G., Choudhary, A., Murugan, G., Shepherd, D., Wilkinson, J., Aguilo, M., et al (2015). Fabrication of Y-Splitters and Mach–Zehnder Structures on (Yb,Nb):RbTiOPO₄/RbTiOPO₄ Epitaxial Layers by Reactive Ion Etching. Journal of Lightwave Technology, 33(9), 1863-1871. [More Information]
  • Choudhary, A., Dhingra, S., D'Urso, B., Kannan, P., Shepherd, D. (2015). Graphene Q-Switched Mode-Locked and Q-Switched Ion-Exchanged Waveguide Lasers. IEEE Photonics Technology Letters, 27(6), 646-649. [More Information]
  • Beecher, S., Grant-Jacob, J., Parsonage, T., Hua, P., Choudhary, A., Mackenzie, J., Shepherd, D., Eason, R. (2015). Growth and Initial Experiments Demonstrating Watt Level Output From Yb:YAG Planar Waveguides Grown by Pulsed Laser Deposition. 2015 Advanced Solid State Lasers Conference and Exhibition (ASSL), Washington: Optical Society of America. [More Information]
  • Parsonage, T., Beecher, S., Choudhary, A., Grant-Jacob, J., Hua, P., Mackenzie, J., Shepherd, D., Eason, R. (2015). Pulsed laser deposited diode-pumped 7.4 W Yb:Lu₂O₃ planar waveguide laser. Optics Express, 23(25), 31691-31697. [More Information]

2014

  • Butt, M., Sole, R., Pujol, M., Rodenas, A., Lifante, G., Wilkinson, J., Choudhary, A., Murugan, G., Shepherd, D., Aguilo, M., et al (2014). Fabrication of Y-Splitters and Mach-Zehnder interferometers on (Yb, Nb):RbTiOPO4/RbTiOPO4 epitaxial layers by Reactive Ion Etching and on RbTiOPO4 by Cs+ diffusion. 17th European Conference on Integrated Optics, Nice, France: European Conference on Integrated Optics.
  • Choudhary, A., Lagatsky, A., Zhang, Z., Zhou, K., Wang, Q., Hogg, R., Kannan, P., Rafailov, E., Resan, B., Oehler, A., et al (2014). Near-infrared mode-locked waveguide lasers with multi-GHz repetition rates. Solid State Lasers XXIII: Technology and Devices, San Francisco: SPIE Society of Photo-Optical Instrumentation Engineers. [More Information]
  • Choudhary, A., Dhingra, S., D'Urso, B., Parsonage, T., Sloyan, K., Eason, R., Shepherd, D. (2014). PLD-grown Yb:Y2O3 waveguide laser Q-switched by a graphene saturable absorber. 17th European Conference on Integrated Optics, Nice, France: European Conference on Integrated Optics.
  • Choudhary, A., Dhingra, S., D'Urso, B., Parsonage, T., Sloyan, K., Eason, R., Shepherd, D. (2014). Q-switched operation of a pulsed-laser-deposited Yb:Y₂O₃ waveguide using graphene as a saturable absorber. Optics Letters, 39(15), 4325-4328. [More Information]
  • Choudhary, A., Lagatsky, A., Kannan, P., Brown, C., Shepherd, D. (2014). Towards an all-integrated MOPA configuration using Yb-doped ion-exchanged waveguides. Photonics 2014: 12th International Conference on Fiber Optics and Photonics, Washington, D.C: Optical Society of America. [More Information]

2013

  • Choudhary, A., Lagatsky, A., Zhang, Z., Zhou, K., Wang, Q., Hogg, R., Kannan, P., Rafailov, E., Sibbett, W., Brown, C., et al (2013). A diode-pumped 1.5 mu-m waveguide laser mode-locked at 6.8 GHz by a quantum dot SESAM. Laser Physics Letters, 10(10), 1-4. [More Information]
  • Kannan, P., Choudhary, A., Mackenzie, J., Feng, X., Shepherd, D. (2013). An ion-exchanged Thulium-doped germanate glass channel waveguide laser operating near 1.9 µm. 2013 Conference on Lasers and Electro-Optics Europe, Munich: IEEE. [More Information]
  • Cugat, J., Choudhary, A., Sole, R., Massons, J., Shepherd, D., Diaz, F., Aguilo, M. (2013). Ar+ion milling rib waveguides on nonlinear optical (Yb,Nb):RTP/RTP epitaxial layers. Optical Materials Express, 3(11), 1912-1917. [More Information]
  • Choudhary, A., Lagatsky, A., Kannan, P., Sibbett, W., Brown, C., Shepherd, D. (2013). Fundamentally mode-locked Yb3+- doped glass waveguide lasers with repetition rate of up to 15.2 GHz. 2013 Conference on Lasers and Electro-Optics Europe, Munich: IEEE. [More Information]
  • Lagatsky, A., Choudhary, A., Kannan, P., Shepherd, D., Sibbett, W., Brown, C. (2013). Fundamentally mode-locked, femtosecond waveguide oscillators with multi-gigahertz repetition frequencies up to 15 GHz. Optics Express, 21(17), 19608-19614. [More Information]
  • Kannan, P., Choudhary, A., Mills, B., Feng, X., Shepherd, D. (2013). Growth of PbSe Quantum Dots Within High-Index Lead-Phosphate Glass for Infrared Saturable Absorbers. Journal of the American Ceramic Society, 96(1), 197-200. [More Information]
  • Choudhary, A., Kannan, P., Mackenzie, J., Feng, X., Shepherd, D. (2013). Ion-exchanged Tm3+: Glass channel waveguide laser. Optics Letters, 38(7), 1146-1148. [More Information]
  • Choudhary, A., Bolanos, W., Kannan, P., Carvajal, J., Aguilo, M., Diaz, F., Shepherd, D. (2013). Low-threshold, mirrorless emission at 981 nm in an Yb,Gd,Lu:KYW inverted rib waveguide laser. Solid State Lasers XXII: Technology and Devices, Bellingham: SPIE Society of Photo-Optical Instrumentation Engineers. [More Information]
  • Choudhary, A., Cugat, J., Kannan, P., Sole, R., Diaz, F., Aguilo, M., Chong, H., Shepherd, D. (2013). On the reactive ion etching of RbTiOPO4. 2013 Conference on Lasers and Electro-Optics Europe, Munich: IEEE.
  • Kannan, P., Choudhary, A., Mills, B., Leonard, V., Hewak, D., Feng, X., Shepherd, D. (2013). PbSe quantum dots grown in a high-index low-melting-temperature glass for infrared laser applications. Optical Components and Materials X, Bellingham: SPIE Society of Photo-Optical Instrumentation Engineers. [More Information]
  • Choudhary, A., Cugat, J., Kannan, P., Sole, R., Diaz, F., Aguilo, M., Chong, H., Shepherd, D. (2013). Single-mode rib waveguides in (Yb,Nb): RbTiOPO4 by reactive ion etching. Journal of Physics D: Applied Physics, 46, 1-6. [More Information]

2012

  • Choudhary, A., Lagatsky, A., Kannan, P., Sibbett, W., Brown, C., Shepherd, D. (2012). Diode-pumped femtosecond solid-state waveguide laser with a 4.9 GHz pulse repetition rate. Optics Letters, 37(21), 4416-4418. [More Information]
  • Choudhary, A., Konig, F. (2012). Efficient frequency shifting of dispersive waves at solitons. Optics Express, 20(5), 5538-5546. [More Information]

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