Title :
Temperature Dependence of 980-nm Oxide-Confined VCSEL Dynamics
Author :
Safaisini, Rashid ; Joseph, John R. ; Louderback, Duane ; Jin, Xiaojun ; Al-Omari, Ahmad N. ; Lear, Kevin L.
Author_Institution :
Electr. & Comput. Eng. Dept., Colorado State Univ., Fort Collins, CO
fDate :
7/15/2008 12:00:00 AM
Abstract :
Temperature dependence of 980-nm vertical-cavity surface-emitting laser (VCSEL) dynamics is reported. Resonance frequency and damping factor of a 7-m active diameter laser have been measured using noise spectra. The primary cause of reduced bandwidth with increasing temperature was reduced photon density. Differential gain is relatively constant for temperatures from 10 C to 70 C, and damping analysis showed there was also no significant change in -factor as a function of temperature.
Keywords :
photons; surface emitting lasers; VCSEL; noise spectra; photon density; temperature 10 C to 70 C; vertical cavity surface emitting laser; wavelength 7 m; wavelength 980 nm; Active noise reduction; Damping; Frequency measurement; Laser noise; Noise measurement; Resonance; Resonant frequency; Surface emitting lasers; Temperature dependence; Vertical cavity surface emitting lasers; Differential gain; laser dynamics; noise spectra; vertical-cavity surface-emitting laser (VCSEL);
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2008.926564
