John WY Lee,Jian He,Jiandong Xu,Donald Simpson,Gennady Imeshev,Oleg J. Korovyanko,Zenon Witowski
申请号：
US14198319
公开号：
US20140276672A1
申请日:
2014.03.05
申请国别(地区):
US
年份:
2014
代理人:
摘要：
Embodiments of this invention are directed to a laser system configured to deliver a pulsed laser beam to a patients eye. The system includes a laser engine comprising an optically-pumped laser oscillator configured with an extracavity waveplate, and an optional intracavity waveplate, that can be tilted and rotated to provide a limited range of wavelengths for laser mode excitation and to maintain stable mode-locked laser operation. In an embodiment, the present design includes an oscillator and a photosensor, such as a fast photodetector or an autocorrelator, positioned to receive a beam of laser light associated with the oscillator or laser engine, and a controller configured to receive readings from the photosensor and alter the laser gain provided within the oscillator to a level outside the bistable performance zone avoiding mode and gain competitions.
