Title :
Gain characteristics of 1.55-μm high-speed multiple-quantum-well lasers
Author :
Morton, P.A. ; Ackerman, D.A. ; Shtengel, G.E. ; Kazarinov, R.F. ; Hybertsen, M.S. ; Tanbun-Ek, T. ; Logan, R.A. ; Sergent, A.M.
Author_Institution :
AT&T Bell Labs., Murray Hill, NJ, USA
Abstract :
We describe the important characteristics of high-speed p-doped compressively strained MQW lasers obtained from comprehensive below-threshold DC measurements. Results of gain and differential gain versus wavelength and carrier density are verified by above-threshold resonance measurements. Measurement-derived design curves of gain, differential gain, and linewidth enhancement factor allow device optimization for high speed and low chirp.<>
Keywords :
carrier density; chirp modulation; high-speed optical techniques; laser beams; laser variables measurement; optical modulation; quantum well lasers; 1.55 mum; above-threshold resonance measurements; below-threshold DC measurements; carrier density; design curves; device optimization; differential gain; gain; high-speed lasers; high-speed multiple-quantum-well lasers; linewidth enhancement factor; low chirp operation; p-doped compressively strained MQW lasers; wavelength; Bandwidth; Charge carrier density; Charge carrier lifetime; Chirp; Fabry-Perot; Gain measurement; Optical materials; Quantum well devices; Semiconductor lasers; Wavelength measurement;
Journal_Title :
Photonics Technology Letters, IEEE
