Title :
High-frequency modulation characteristics in 1.5 mu m compressively strained multiquantum well lasers with large number of wells
Author :
Murata, Shotaro ; Naniwae, K. ; Shimizu, J. ; Nido, M. ; Tomita, Akihisa ; Suzuki, A.
Author_Institution :
NEC Corp., Tsukuba, Japan
fDate :
7/16/1992 12:00:00 AM
Abstract :
The high-frequency modulation characteristics in 1.5 mu m compressively strained multiquantum well (MQW) lasers with a large number of wells (NW=20) are measured using an optical modulation technique. The damping K factor and differential gain are improved by increasing the number of wells. The nonlinear gain coefficient is nearly the same. For a 20 well MQW laser with 1.5% strain, the 3dB bandwidth is estimated to be 29 GHz at 15mW output.
Keywords :
laser transitions; optical modulation; semiconductor junction lasers; 1.5 micron; 15 mW; 29 GHz; HF characteristics; MQW laser; compressively strained; damping K factor; differential gain; high-frequency modulation characteristics; multiquantum well; nonlinear gain coefficient; optical modulation technique; semiconductor lasers;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19920926
