Frequency stabilized Ho:YAG laser

Coherent light generators – Particular beam control device – Optical output stabilization

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372 94, 372 29, 372 28, 372 15, 372 12, 372 10, 356350, H01S 313

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active

050994867

ABSTRACT:
A method and apparatus is presented whereby control of the frequency of pulses emitted by a resonant ring slave laser is forced to a single frequency defined by a seed laser through the control of the pathlength of the ring laser resonant path. By monitoring the time difference between turn on of a Q-switch within the laser resonant cavity and the time of occurrence of the output pulse of the slave laser, and effecting changes to the ring laser resonant path in a manner to minimize the measured time difference, the frequency of the output pulse from the slave laser is driven to a single frequency defined by the seed laser resonator.

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