Actively initiated quasi-passive mode-locking in a CW SELFOC Nd:glass laser
Abstract
Actively initiated quasi-passive mode-locking has been achieved in a small-power CW SELFOC Nd:glass laser. Three means have been taken to enhance the pulse intensity incident on a saturable dye to a magnitude sufficient for nonlinear absorption initiation: (1) tight focusing, (2) controlled spiking oscillation, and (3) auxiliary active mode-locking. Mode-locked pulses having an 11-12-ps pulsewidth were obtained. Interpretation concerning the observed mode-locked-pulse intensity-correlation curves is presented. To obtain satellite-pulse-free mode-locked pulses, a modified mode-locking process with sufficiently long buildup time is considered.
- Publication:
-
IEEE Journal of Quantum Electronics
- Pub Date:
- February 1977
- DOI:
- 10.1109/JQE.1977.1069274
- Bibcode:
- 1977IJQE...13...47W
- Keywords:
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- Continuous Wave Lasers;
- Laser Mode Locking;
- Neodymium Lasers;
- Ultrashort Pulsed Lasers;
- Dye Lasers;
- Nonlinear Optics;
- Picosecond Pulses;
- Yag Lasers;
- Lasers and Masers