"Uni-Traveling-Carrier Balanced Photodiode with Tunable MMI Coupler for Optimization of Source Laser RIN Suppression," J. Klamkin, A. Ramaswamy, L. A. Johansson, N. Nunoya, J. E. Bowers, S. P. DenBaars, L. A. Coldren, Microwave Photonics 09, We 2.2, Valencia, Spain, OCTOBER 2009

"Coherent Optical Receiver with Linear XOR Phase Detection and Frequency Down-Conversion," L. A. Johansson, A. Ramaswamy, Vikash and M. J. Rodwell, Microwave Symposium Digest, 2009. MTT '09. IEEE MTT-S International, pp. 157 - 160, Boston, MA, JUNE 2009

"Highly Linear Integrated Coherent Receivers for Microwave Photonic Links," J. Klamkin, L.A. Johansson, A. Ramaswamy, N. Nunoya, S. Ristic, U. Krishnamachari, J. Chen, J. E. Bowers, S. P. DenBaars, L.A. Coldren, Optical Fiber Communication (OFC) (invited), paper no. OMK4, San Diego, CA, MARCH 2009

"Optical Phase Demodulation using a Coherent Receiver with an Ultra-Compact Grating Beam Splitter," C. H. Chen, A. Ramaswamy, J. Klamkin, L. A. Johansson, J. E. Bowers, L. A. Coldren, The Asia Optical Fiber Communication and Optoelectronic Exposition and Conference (AOE), paper no. SaN3, Shanghai, China, OCTOBER 2008

"Phase-Locked Coherent Demodulator With Feedback and Sampling for Optically Phase-Modulated Microwave Links," D. Zibar, L. A. Johansson, H. F. Chou, A. Ramaswamy, M. J. Rodwell, J. E. Bowers, Journal of Lightwave Technology, vol. 26, no. 15, pp. 2460-2474, AUGUST 2008

"Optical Phase Demodulation of a 10GHz RF Signal Using Optical Sampling," A. Ramaswamy, L. A. Johansson, J. Klamkin, D. Zibar, L. A. Coldren, M. J. Rodwell, J. E. Bowers, Conference on Coherent Optical Technologies & Applications (COTA), CTuC3, Boston, MA, JULY 2008

"Time-Sampled Linear Optical Phase Demodulation," L. A. Johansson, C. Sheldon, A. Ramaswamy, M.J. Rodwell, Conference on Coherent Optical Technologies & Applications (COTA), CTuC2, Boston, MA, JULY 2008

"Integrated Coherent Receivers for High Linearity Microwave Photonic Links," A. Ramaswamy, L. A. Johansson, J. Klamkin, C. Sheldon, H.F. Chou, M.J. Rodwell, L.A. Coldren, J.E. Bowers, Journal of Lightwave Technology, vol. 26, no. 1, pp. 209-216, JANUARY 2008

"Integrated All-Photonic Coherent Receiver," A. Ramaswamy, L.A. Johansson, J. Klamkin, M.J. Rodwell, J.E. Bowers and L.A. Coldren, LEOS Annual Meeting, TuM1, Lake Buena Vista, Florida, OCTOBER 2007

"Monolithically Integrated Coherent Receiver for Highly Linear Microwave Photonic Links," J. Klamkin, L.A. Johansson, A. Ramaswamy, J.E. Bowers, S.P. DenBaars and L.A. Coldren, LEOS Annual Meeting, ME2, Lake Buena Vista, Florida, OCTOBER 2007

"Linear Coherent Receiver based on a Broadband and Sampling Optical Phase-Locked Loop," J. E. Bowers, A. Ramaswamy, L.A. Johansson, J. Klamkin, M.N. Sysak, D.Zibar, L.A. Coldren, M.J. Rodwell, L. Lembo, R. Yoshimitsu, D. Scott, R. Davis, P. Ly, Microwave Photonics '07 (Invited), Victoria, Canada, OCTOBER 2007

"Analysis of Sampled Optical Phase-Lock Loops," L. A. Johansson, D. Zibar, A. Ramaswamy, L.A. Coldren, M.J. Rodwell and J. E. Bowers, Microwave Photonics '07, Victoria, Canada, OCTOBER 2007

"Uni-Traveling-Carrier Photodiodes with Increased Output Response and Low Intermodulation Distortion," J. Klamkin, A. Ramaswamy, Y.C. Chang, L. A. Johansson, M. M. Dummer, J. E. Bowers, S. P. DenBaars, L. A. Coldren, Microwave Photonics '07, Victoria, Canada,, OCTOBER 2007

"Highly Linear Coherent Receiver With Feedback," H.F. Chou, A. Ramaswamy, D. Zibar, L.A. Johansson, J.E. Bowers, M.J. Rodwell, L.A. Coldren, IEEE Photonics Technology Letters, vol 19, No.12, pp. 940-942, JUNE 2007

"Coherent Optical Receiver for Linear Optical Phase Demodulation," L.A. Johansson, H.F. Chou, A. Ramaswamy, J. Klamkin, L.A. Coldren, M.J. Rodwell and John E. Bowers, IEEE MTT-S International Microwave Symposium (Invited), Honolulu, Hawaii, JUNE 2007

"Novel Optical Phase Demodulator Based on a Sampling Phase-Locked Loop," D. Zibar, L.A. Johansson, H.F. Chou, A. Ramaswamy, M.J. Rodwell, J.E. Bowers, IEEE Photonics Technology Letters, vol 19, No.9, pp. 686-688, MAY 2007

"Coherent Receiver Based on a Broadband Optical Phase-Lock Loop," A. Ramaswamy, L.A. Johansson, J. Klamkin, C. Sheldon, H.F. Chou, M.J. Rodwell, L.A. Coldren, J.E. Bowers, Optical Fiber Communication (OFC), paper no. PDP3, Anaheim,CA, MARCH 2007

"High Output Saturation and High-Linearity Uni-Traveling-Carrier Waveguide Photodiodes," J. Klamkin, A. Ramaswamy, L. A. Johansson, H. –F. Chou, M. N. Sysak, J. W. Raring, N. Parthasarathy, S.P. Denbaars, J. E. Bowers, L.A. Coldren, IEEE Photonics Technology Letters, vol. 19, no. 3, pp. 149-151, FEBRUARY 2007

"A Dynamic Measurement Technique for Third Order Distortion in Optical Phase Modulators," M. N. Sysak, L. A. Johannson, J. Klamkin, L. A. Coldren, J. E. Bowers, IEEE Photonics Technology Letters, vol. 19, no.3, pp.170-172, FEBRUARY 2007

"Dynamic Range Enhancement of a Novel Phase-locked Coherent Optical Phase Demodulator," D. Zibar, L. A. Johansson, H.-F. Chou, A. Ramaswamy, and J. E. Bowers, Optics Express, 15(1) pp. 33-44, JANUARY 2007

"Investigation of a Novel Optical Phase Demodulator Based on a Sampling Phase -Locked Loop," D. Zibar, L.A. Johansson, H.F. Chou, A. Ramaswamy, M.J.W. Rodwell, J.E. Bowers, Microwave Photonics '06, Grenoble, France, OCTOBER 2006

"All-Optical Coherent Receiver with Feedback and Sampling," H.F. Chou, L.A. Johansson, D. Zibar, A. Ramaswamy, M.J. Rodwell, J.E. Bowers, Microwave Photonics '06, Grenoble, France, OCTOBER 2006

"Time-Domain Analysis of a Novel Phase-Locked Coherent Optical Demodulator," D. Zibar, L.A. Johansson, H.F. Chou, A. Ramaswamy, J.E. Bowers, Coherent Optical Technologies and Applications (COTA'06), Canada, JUNE 2006

"SFDR Improvement of a Coherent Receiver Using Feedback," H.-F. Chou, A. Ramaswamy, D. Zibar, L. A. Johansson, J. E. Bowers, M. Rodwell, and L. Coldren, Coherent Optical Technologies and Applications (COTA'06), , JUNE 2006

"Tunable and Frequency-Stabilized CO2 Waveguide Lasers," Y. Ma and D. Liang, Optical Engineering, SPIE, Vol. 41, No. 12, pp. 3319 - 3323, DECEMBER 2002

"Study on a Bessel-Gaussian Beam Laser," Y. Ma, Z. He and D. Liang, Optics & Laser Technology, Elsevier, B.V., Vol. 34, pp. 579 - 584, JULY 2002