Spectral characteristics of vertical-cavity surface-emitting laserswith strong external optical feedback |
| |
| Authors: | Shijun Jiang Dagenais M. Morgan R.A. |
| |
| Affiliation: | Dept. of Electr. Eng., Maryland Univ., College Park, MD; |
| |
| Abstract: | ![]()
We study the spectral optical properties of vertical-cavity surface-emitting lasers (VCSEL's) in the presence of strong optical feedback from an external reflecting surface. When the feedback strength exceeds 1%, multicompound-cavity-longitudinal-modes are observed. The output spectral width increases significantly as the feedback increases. Besides the normal compound-cavity modes, high-loss compound-cavity modes are also observed for the first time. The experimental observations are well explained by a compound-cavity laser theory |
| |
| Keywords: | |
|
|
