Faculty Publications - Constance Chang-Hasnain

Articles in journals or magazines

• E. K. Lau, X. Zhao, H. Sung, D. Parekh, C. Chang-Hasnain, and M. C. Wu, "Strong optical injection-locked semiconductor lasers demonstrating > 100-GHz resonance frequencies and 80-GHz intrinsic bandwidths," Opt. Express, vol. 16, no. 9, pp. 6609-6618, 2008.
• S. Chang, S. L. Chuang, C. Chang-Hasnain, and H. Wang, "Slow light using spin coherence and V-type electromagnetically induced transparency in [110] strained quantum wells," J. Optical Society of America B: Optical Physics, vol. 24, no. 4, pp. 849-859, April 2007.
• M. C. Y. Huang, K. B. Cheng, Y. Zhou, A. Pisano, and C. Chang-Hasnain, "Monolithic integrated piezoelectric MEMS-tunable VCSEL," IEEE J. Selected Topics in Quantum Electronics, vol. 13, no. 2, pp. 374-380, March 2007.
• E. Wong, X. Zhao, C. Chang-Hasnain, W. Hofmann, and M. C. Amann, "Rayleigh backscattering and extinction ratio study of optically injection-locked 1.55 mu m VCSELs," Electronics Letters, vol. 43, no. 3, pp. 182-183, Feb. 2007.
• L. C. Chuang, M. Moewe, C. Chase, N. P. Kobayashi, C. Chang-Hasnain, and S. Crankshaw, "Critical diameter for III-V nanowires grown on lattice-mismatched substrates," Applied Physics Letters, vol. 90, no. 4, pp. 043115-1-3, Jan. 2007.
• C. Chang-Hasnain and S. L. Chuang, "Slow and fast light in semiconductor quantum-well and quantum-dot devices," J. Lightwave Technology, vol. 24, no. 12, pp. 4642-4654, Dec. 2006.
• B. Pesala, C. Zhangyuan, A. V. Uskov, and C. Chang-Hasnain, "Experimental demonstration of slow and superluminal light in semiconductor optical amplifiers," Optics Express, vol. 14, no. 26, pp. 12968-75, Dec. 2006.
• R. S. Tucker, P. Ku, and C. Chang-Hasnain, "Slow-light optical buffers: capabilities and fundamental limitations," J. Lightwave Technology, vol. 23, no. 12, pp. 4046-4066, Dec. 2005.
• X. Zhao, P. Palinginis, B. Pesala, C. Chang-Hasnain, and P. Hemmer, "Tunable ultraslow light in vertical-cavity surface-emitting laser amplifier," Optics Express, vol. 13, no. 20, pp. 7899-7904, Oct. 2005.
• G. Piazza, K. Castelino, A. Pisano, and C. Chang-Hasnain, "Design of a monolithic piezoelectrically actuated microelectromechanical tunable vertical-cavity surface-emitting laser," Optics Letters, vol. 30, no. 8, pp. 896-898, April 2005.
• C. F. R. Mateus, M. C. Y. Huang, Y. Deng, A. R. Neureuther, and C. Chang-Hasnain, "Ultrabroadband mirror using low-index cladded subwavelength grating," IEEE Photonics Technology Letters, vol. 16, no. 2, pp. 518-520, Feb. 2004.
• C. Chang-Hasnain, "Tunable VCSEL," IEEE J. Selected Topics in Quantum Electronics, vol. 6, no. 6, pp. 978-987, Nov. 2000.
• W. Yuen, G. S. Li, R. F. Nabiev, J. Boucart, P. Kner, R. J. Stone, D. Zhang, M. Beaudoin, T. Zheng, C. He, K. Yu, M. Jansen, D. P. Worland, and C. Chang-Hasnain, "High-performance 1.6-mu m single-epitaxy top-emitting VCSEL," Electronics Letters, vol. 36, no. 13, pp. 1121-1123, June 2000.
• E. C. Vail, M. S. Wu, G. S. Li, L. Eng, and C. Chang-Hasnain, "GaAs micromachined widely tunable Fabry-Perot filters," Electronics Letters, vol. 31, no. 3, pp. 228-229, Feb. 1995.
• C. Chang-Hasnain, J. P. Harbison, C. Zah, M. W. Maeda, L. T. Florez, N. G. Stoffel, and T. Lee, "Multiple wavelength tunable surface-emitting laser arrays," IEEE J. Quantum Electronics, vol. 27, no. 6, pp. 1368-1376, June 1991.
• C. Chang-Hasnain, J. P. Harbison, G. Hasnain, A. C. Von Lehmen, L. T. Florez, and N. G. Stoffel, "Dynamic, polarization, and transverse mode characteristics of vertical cavity surface emitting lasers," IEEE J. Quantum Electronics, vol. 27, no. 6, pp. 1402-1409, June 1991.
• C. Chang-Hasnain, M. Orenstein, A. Von Lehmen, L. T. Florez, J. P. Harbison, and N. G. Stoffel, "Transverse mode characteristics of vertical cavity surface-emitting lasers," Applied Physics Letters, vol. 57, no. 3, pp. 218-220, July 1990.
• C. Chang-Hasnain, A. Dienes, J. R. Whinnery, W. Streifer, and D. R. Scifres, "Characteristics of the off-centered apertured mirror external cavity laser array," Applied Physics Letters, vol. 54, no. 6, pp. 484-486, Feb. 1989.
• G. Hasnain, C. Chang-Hasnain, A. Dienes, and J. R. Whinnery, "Characteristics of a monolithically integrated doping superlattice optical circuit," Applied Physics Letters, vol. 52, no. 21, pp. 1765-1767, May 1988.
• G. Hasnain, C. Chang-Hasnain, G. H. Doehler, N. M. Johnson, D. Mars, J. N. Miller, and J. R. Whinnery, "High quality selective contacts to n-i-p-i doping superlattices," Journal de Physique Colloque, vol. 48, no. C-5, pp. 605-609, Nov. 1987.
• C. Chang-Hasnain, J. Berger, D. R. Scifres, W. Streifer, J. R. Whinnery, and A. Dienes, "High power with high efficiency in a narrow single-lobed beam from a diode laser array in an external cavity," Applied Physics Letters, vol. 50, no. 21, pp. 1465-1467, May 1987.
• C. Chang-Hasnain, G. Hasnain, N. M. Johnson, G. H. Dohler, J. N. Miller, J. R. Whinnery, and A. Dienes, "Tunable electroabsorption in gallium arsenide doping superlattices," Applied Physics Letters, vol. 50, no. 14, pp. 915-917, April 1987.
• G. Hasnain, C. Chang-Hasnain, G. H. Doehler, J. N. Miller, N. M. Johnson, J. R. Whinnery, and A. Dienes, "Tunable absorption and electroluminescence in GaAs doping superlattice," Superlattices and Microstructures, vol. 3, no. 3, pp. 277-282, March 1987.
• C. Chang-Hasnain, G. Hasnain, G. H. Doehler, N. M. Johnson, J. N. Miller, J. R. Whinnery, and A. Dienes, "Tunable electroabsorption and electroluminescence in GaAs doping superlattices," Proc. SPIE - The Intl. Society for Optical Engineering, vol. 792, pp. 45-49, March 1987.
• C. Chang-Hasnain, D. F. Welch, D. R. Scifres, J. R. Whinnery, A. Dienes, and R. D. Burnham, "Diffraction-limited emission from a diode laser array in an apertured graded-index lens external cavity," Applied Physics Letters, vol. 49, no. 11, pp. 614-616, Sep. 1986.

Articles in conference proceedings

• X. Zhao, E. K. Lau, D. Parekh, H. Sung, W. Hofmann, M. C. Amann, M. C. Wu, and C. Chang-Hasnain, "107-GHz resonance frequency of 1.55-mu m VCSELs under ultra-high optical injection locking," in Proc. 2008 Conf. on Lasers and Electro-Optics and 2008 Conf. on Quantum Electronics and Laser Science (CLEO/QELS '08), Washington, DC: Optical Society of America, 2008, pp. 1-2.
• M. Tien, A. T. Ohta, K. Yu, L. C. Chuang, A. Jamshidi, S. Neale, C. Hou, C. Chang-Hasnain, and M. C. Wu, "Hybrid microdisk laser on a silicon platform using lateral-field optoelectronic tweezers assembly," in Proc. 2008 Conf. on Lasers and Electro-Optics and 2008 Conf. on Quantum Electronics and Laser Science (CLEO/QELS '08), Washington, DC: Optical Society of America, 2008, pp. 1-2.
• B. Pesala, F. G. Sedgwick, A. V. Uskov, and C. Chang-Hasnain, "Novel chirp-enhanced tunable fast light of ultra-short pulses in semiconductor optical amplifiers," in Proc. 2008 Optical Fiber Communication Conf./National Fiber Optic Engineers Conf. (OFC/NFOEC '08), Washington, DC: Optical Society of America, 2008, pp. 1-3.
• M. C. Wu, C. Chang-Hasnain, E. K. Lau, and X. Zhao, "High-speed modulation of optical injection-locked semiconductor lasers (Invited)," in Proc. 2008 Optical Fiber Communication Conf./National Fiber Optic Engineers Conf. (OFC/NFOEC '08), Washington, DC: Optical Society of America, 2008, pp. 1-3.
• B. Zhang, X. Zhao, L. Christen, D. Parekh, W. Hofmann, M. C. Wu, M. C. Amann, C. Chang-Hasnain, and A. E. Willner, "Adjustable chirp injection-locked 1.55-mu m VCSELs for enhanced chromatic dispersion compensation at 10-Gbit/s," in Proc. 2008 Optical Fiber Communication Conf./National Fiber Optic Engineers Conf. (OFC/NFOEC '08), Washington, DC: Optical Society of America, 2008, pp. 1-3.
• E. K. Lau, H. Sung, X. Zhao, D. Parekh, Y. Chen, C. Chang-Hasnain, and M. C. Wu, "Bandwidth enhancement by optical amplitude and phase modulation of injection-locked semiconductor lasers," in Proc. 2007 IEEE Intl. Topical Meeting on Microwave Photonics (MWP '07), Piscataway, NJ: IEEE Press, 2007, pp. 241-244.
• E. K. Lau, H. Sung, X. Zhao, D. Parekh, C. Chang-Hasnain, and M. C. Wu, "Bandwidth enhancement of electro-absorption modulated lasers by optical injection locking," in Proc. 20th Annual Meeting of IEEE Lasers and Electro-Optics Society (LEOS '07), Piscataway, NJ: IEEE Press, 2007, pp. 188-189.
• X. Zhao, D. Parekh, H. Sung, E. Lau, M. C. Wu, and C. Chang-Hasnain, "Optoelectronic oscillator using injection-locked VCSELs," in Proc. 20th Annual Meeting of IEEE Lasers and Electro-Optics Society (LEOS 2007), Piscataway, NJ: IEEE Press, 2007, pp. 190-191.
• X. Zhao, D. Parekh, E. Lau, H. Sung, M. C. Wu, and C. Chang-Hasnain, "High-speed laser transmitters using cascaded optical injection locking," in Proc. 2007 Intl. Nano-Optoelectronics Workshop (iNOW '07), Piscataway, NJ: IEEE Press, 2007, pp. 196-197.
• H. Sung, E. K. Lau, X. Zhao, D. Parekh, C. Chang-Hasnain, and M. C. Wu, "Optically injection-locked optoelectronic oscillators with low RF threshold gain," in Proc. 2007 Conf. on Lasers and Electro-Optics (CLEO '07), Washington, DC: Optical Society of America, 2007, pp. 1-2.
• C. Chang-Hasnain, "Invited: Slow and fast light in semiconductors," in Proc. 2006 IEEE LEOS Annual Meeting Conf., Piscataway, NJ: IEEE Press, 2006, pp. 418-419.
• Y. Zhou, M. C. Y. Huang, and C. Chang-Hasnain, "Novel surface emitting laser using high-contrast subwavelength grating," in 2006 IEEE 20th Intl. Semiconductor Laser Conf. Digest, Piscataway, NJ: IEEE Press, 2006, pp. 107-108.
• M. C. Y. Huang, Y. Zhou, and C. Chang-Hasnain, "Nanoscale high-contrast subwavelength grating integrated tunable surface emitting laser," in Proc. 2006 IEEE/LEOS Intl. Conf. on Optical MEMs and Their Applications, Piscataway, NJ: IEEE Press, 2006, pp. 13-14.
• C. Chang-Hasnain, J. R. Whinnery, A. Dienes, W. Streifer, and D. R. Scifres, "Theoretical analysis of the off-centered aperture mirror external cavity laser array," in Digest of Technical Papers, 8th Conf. on Lasers and Electro-Optics, Vol. 7, Washington, D.C.: Optical Society of America, 1988, pp. 123-123.
• C. Chang-Hasnain, J. R. Whinnery, A. Dienes, J. Berger, D. R. Scifres, and W. Streifer, "Narrow single lobed emission with high power and high efficiency from an external cavity coupled laser array," in Digest of Technical Papers, 7th Conference on Lasers and Electro-Optics (CLEO '87),, Washington, D.C.: Optical Society of America, 1987, pp. 404-404.
• G. Hasnain, C. Chang-Hasnain, A. Dienes, and J. R. Whinnery, "Integrated optical circuits using doping superlattices," in Proc. SPIE -- The Intl. Society for Optical Engineering, M. A. Mentzer, Ed., Vol. 835, Bellingham, WA: International Society of Photo-Optical Engineers, 1987, pp. 49-52.
• G. Hasnain, C. Chang-Hasnain, and J. R. Whinnery, "Use of doping superlattices for tunable emitters and modulators," in Proc. NSF Workshop on Optical Nonlinearities, Fast Phenomena and Signal Processing, Washington, D.C.: National Science Foundation, 1986, pp. 303-308.

Patents

• C. J. Chang-Hasnain and P. Ku, "Variable semiconductor all-optical buffer using slow light based on electromagnetically induced transparency," U.S. Patent 7,038,827. May 2006.
• C. J. Chang-Hasnain and P. Ku, "Variable semiconductor all-optical buffer using slow light based on electromagnetically induced transparency," U.S. Patent 6,900,920. May 2005.
• S. M. Chase, C. J. Chang-Hasnain, and J. M. Waite, "Apparatus and method for controlled cantilever motion through torsional beams and a counterweight," U.S. Patent 6,813,053. Nov. 2004.
• J. Boucart, C. Chang-Hasnain, M. Jansen, R. Nabiev, and W. Yuen, "Vertical cavity apparatus with tunnel junction," U.S. Patent 6,760,357. July 2004.
• B. T. Cunningham, P. Y. Li, C. Chang-Hasnain, and C. Mateus, "Detection of biochemical interactions on a biosensor using tunable filters and tunable lasers," U.S. Patent Application. May 2003.
• J. Boucart, C. Chang-Hasnain, M. Jansen, R. Nabiev, and W. Yuen, "Vertical cavity apparatus with tunnel junction," U.S. Patent 6,535,541. March 2003.
• J. Boucart, C. Chang-Hasnain, M. Jansen, R. Nabiev, and W. Yuen, "Vertical cavity apparatus with tunnel junction," U.S. Patent 6,493,373. Dec. 2002.
• J. Boucart, C. Chang-Hasnain, M. Jansen, R. Nabiev, and W. Yuen, "Vertical cavity apparatus with tunnel junction," U.S. Patent 6,493,372. Dec. 2002.
• J. Boucart, C. Chang-Hasnain, M. Jansen, R. Nabiev, and W. Yuen, "Vertical cavity apparatus with tunnel junction," U.S. Patent 6,493,371. Dec. 2002.
• J. Boucart, C. Chang-Hasnain, M. Jansen, R. Nabiev, and W. Yuen, "Vertical cavity apparatus with tunnel junction," U.S. Patent 6,490,311. Dec. 2002.
• J. Boucart, C. Chang-Hasnain, M. Jansen, R. Nabiev, and W. Yuen, "Vertical cavity apparatus with tunnel junction," U.S. Patent 6,487,231. Nov. 2002.
• J. Boucart, C. Chang-Hasnain, M. Jansen, R. Nabiev, and W. Yuen, "Vertical cavity apparatus with tunnel junction," U.S. Patent 6,487,230. Nov. 2002.
• C. Chang-Hasnain, R. Dato, P. Worland, and R. Yu, "Hermetically sealed semiconductor laser device," U.S. Patent 6,275,513. Aug. 2001.
• C. Chang-Hasnain, R. Dato, P. Kner, G. S. Li, P. Worland, R. Yu, and W. Yuen, "Monitoring and control assembly for wavelength stabilized optical system," U.S. Patent 6,233,263. May 2001.
• C. Chang-Hasnain, M. Schwager, and R. Yu, "Flexible optical multiplexer," U.S. Patent 6,226,425. May 2001.
• C. Chang-Hasnain, G. Li, and W. Yuen, "Vertical optical cavities produced with selective area epitaxy," U.S. Patent 6,222,871. April 2001.
• D. Sun, C. Chang-Hasnain, and M. Jansen, "Opto-electronic devices with multiple oxide apertures," U.S. Patent Application. March 2001.
• W. Yuen, C. J. Chang-Hasnain, and G. S. Li, "Fabrication of multiple-wavelength vertical-cavity opto-electronic device arrays," U.S. Patent 6,174,749. Jan. 2001.
• Y. Wu and C. J. Chang-Hasnain, "Method for quality control and yield enhancement," U.S. Patent 6,148,268. Nov. 2000.
• S. F. Lim, J. A. Hudgings, K. Lau, and C. J. Chang-Hasnain, "Vertical-cavity surface-emitting laser with an intracavity quantum-well optical absorber," U.S. Patent 6,026,108. Feb. 2000.
• G. S. Li, W. Yuen, and C. J. Chang-Hasnain, "Vertical optical cavities produced with selective area epitaxy," U.S. Patent 5,960,024. Sep. 1999.
• R. F. Nabiev, C. J. Chang-Hasnain, L. E. Eng, and K. Lau, "Monolithic wavelength meter and photodetector using a wavelength dependent reflector," U.S. Patent 5,760,419. June 1998.
• C. J. Chang-Hasnain, E. C. Vail, and M. S. Wu, "High performance micromechanical tunable vertical cavity surface emitting laser," U.S. Patent 5,771,253. June 1998.
• S. F. Lim and C. J. Chang-Hasnain, "Intracavity quantum well photodetector integrated within a vertical-cavity surface-emitting laser and method of operating same," U.S. Patent 5,757,837. May 1998.
• Y. Sun, D. A. Francis, S. A. Biellak, and C. J. Chang-Hasnain, "Semiconductor laser geometry for broad-angle far-field addressing," U.S. Patent 5,627,852. May 1997.
• C. J. Chang-Hasnain, E. C. Vail, and M. S. Wu, "Electrostatically-controlled cantilever apparatus for continuous tuning of the resonance wavelength of a Fabry-Perot cavity," U.S. Patent 5,629,951. May 1997.
• A. E. Willner, C. J. Chang-Hasnain, and J. E. Leight, "One-to-many simultaneous and reconfigurable optical two-dimensional plane interconnections using multiple wavelength, vertical cavity; surface-emitting lasers and wavelength-dependent detector planes," U.S. Patent 5,546,209. Aug. 1996.
• C. J. Chang-Hasnain, Y. Wu, and R. Nabiev, "Single mode laser with a passive antiguide region," U.S. Patent 5,539,759. July 1996.
• C. J. Chang-Hasnain, K. Lau, J. W. Goodman, and A. Varma, "Apparatus and method for routing optical signals through wavelength-coding in a self-routed wavelength addressable network," U.S. Patent 5,541,756. July 1996.
• C. J. Chang-Hasnain, "Monolithic multiple-wavelength laser array," U.S. Patent 5,029,176. July 1991.
• C. J. Chang-Hasnain and E. Kapon, "Cross-coupled quantum-well stripe laser array," U.S. Patent 4,922,500. May 1990.