Title :
FM response of quantum-well lasers taking into account carrier transport effects
Author :
Ribeiro, R.F.S. ; da Rocha, J.R.F. ; Cartaxo, A.V.T. ; da Silva, H.J.A. ; Franz, B. ; Wedding, B.
Author_Institution :
Dept. de Electron. e Telecoms, Aveiro Univ., Portugal
Abstract :
The FM response of a single-frequency semiconductor laser is very important for communication systems that use direct modulation of the laser injection current. A new rate equation for the optical phase in quantum-well lasers is proposed, and the corresponding FM response is derived. It is shown that the separate-confinement-heterostructure can have a significant effect on the laser performance. The theory is confirmed with experimental results.<>
Keywords :
carrier density; carrier mobility; distributed feedback lasers; frequency modulation; laser feedback; laser modes; optical communication equipment; optical modulation; quantum well lasers; 1.53 mum; FM response; carrier transport effects; communication systems; direct modulation; laser injection current; laser performance; optical phase; quantum-well lasers; rate equation; separate-confinement-heterostructure; single-frequency semiconductor laser; Carrier confinement; Equations; Frequency modulation; Laser modes; Laser theory; Optical refraction; Optical sensors; Quantum well lasers; Semiconductor lasers;
Journal_Title :
Photonics Technology Letters, IEEE
