Phase and amplitude fluctuations in a mode-locked laser
Abstract
Comparisons are made of the phase and amplitude fluctuations of a laser when it operates single mode and when it is mode locked with the same total average power. Despite the much lower signal-to- (spontaneous emission) noise ratio of the mode-locked laser, the linewidth of each of the locked modes is the same as that of the single mode. The fluctuation of the total intensity of the mode-locked laser, and the linewidth enhancement factor due to intensity fluctuation as recently analyzed by Henry, are the same in both cases.
- Publication:
-
IEEE Journal of Quantum Electronics
- Pub Date:
- November 1985
- DOI:
- 10.1109/JQE.1985.1072594
- Bibcode:
- 1985IJQE...21.1806H
- Keywords:
-
- Laser Mode Locking;
- Laser Stability;
- Amplitudes;
- Bandwidth;
- Laser Outputs;
- Phase Shift;
- Semiconductor Lasers;
- Signal To Noise Ratios;
- Spontaneous Emission;
- Lasers and Masers