High-repetition-rate femtosecond lasers can perform a mode-locked operation in a wide area of a stability region. The performance of mode locking depends on the operating point. An inadequate operating point often causes residual cw lines and an unstable mode-locked operation. Conditions allowing go
Multi-sideband Generation in a Femtosecond Cr4+:YAG Laser
โ Scribed by Yuzo Ishida; Kazunori Naganuma; Hidehiko Kamada
- Publisher
- Optical Society of Japan
- Year
- 1999
- Tongue
- English
- Weight
- 696 KB
- Volume
- 6
- Category
- Article
- ISSN
- 1340-6000
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Passive mode-locking of a pulsed Nd:YAG laser using a Cr 4+ :YAG saturable absorber was realized for the ยฎrst time in a nearly critical stable resonator containing an antiresonant ring structure. The output energy and pulse duration are 13.5 mJ and 180 ps, respectively. The recovery time and saturab
This work describes the experimental results obtained on the Cr4+: YAG crystal used as a passive Q-switch in Nd:YAG lasers. In addition, the combination of a Cr 4+ : YAG passive Q-switch with an acousto-optical Q-switch operating simultaneously in one cavity was investigated. More than 180 W averag
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