Title :
MQW tuned semiconductor lasers with uniform frequency response
Author :
Cai, B. ; Seeds, A.J. ; Roberts, J.S.
Author_Institution :
Dept. of Electron. & Electr. Eng., Univ. Coll. London, UK
fDate :
4/1/1994 12:00:00 AM
Abstract :
A tunable semiconductor laser with an intrinsically wideband uniform frequency response has been developed, using the quantum confined Stark effect in quantum well material as the tuning mechanism. A frequency response uniform within 3 dB from 20 kHz to 1.2 GHz was achieved, limited by the measuring system at low frequencies and by device capacitance at high frequencies. Analysis shows that with optimised tuning elements a uniform frequency response to over 50 GHz should be achievable with this technique.<>
Keywords :
Stark effect; electro-optical devices; frequency response; laser tuning; optical modulation; semiconductor lasers; 20 kHz to 1.2 GHz; 50 GHz; MQW tuned semiconductor lasers; device capacitance; high frequencies; low frequencies; measuring system; optimised tuning elements; quantum confined Stark effect; quantum well material; tunable semiconductor laser; tuning mechanism; uniform frequency response; wideband uniform frequency response; Frequency response; Laser tuning; Optical materials; Potential well; Quantum well devices; Quantum well lasers; Semiconductor lasers; Stark effect; Tunable circuits and devices; Wideband;
Journal_Title :
Photonics Technology Letters, IEEE
