Title :
Measurement and characterization of laser chirp of multiquantum-well distributed-feedback lasers
Author :
Peral, Eva ; Yariv, Amnon
Author_Institution :
Dept. of Appl. Phys., California Inst. of Technol., Pasadena, CA, USA
fDate :
3/1/1999 12:00:00 AM
Abstract :
Measurements of relative intensity noise and modulation response, before and after propagation in optical fiber, of the output field of multiquantum-well distributed-feedback (MQW-DFB) lasers are used to determine the influence of the intraband damping mechanisms, the DFB structure and the carrier transport and carrier capture into the QWs on the laser chirp. The power dependence of the linewidth enhancement factor is shown to explain the saturation of the laser linewidth at high optical powers.
Keywords :
chirp modulation; damping; distributed feedback lasers; laser beams; laser feedback; laser noise; laser variables measurement; optical fibre communication; optical modulation; quantum well lasers; DFB structure; MQW-DFB lasers; carrier capture; carrier transport; high optical powers; intraband damping mechanisms; laser chirp; laser linewidth; linewidth enhancement factor; modulation response; multiquantum-well distributed-feedback lasers; optical fiber; output field; power dependence; relative intensity noise; saturation; Chirp modulation; Damping; Fiber lasers; Intensity modulation; Laser noise; Noise measurement; Optical fibers; Optical noise; Optical propagation; Quantum well devices;
Journal_Title :
Photonics Technology Letters, IEEE
