Pulsed laser apparatus and method

Details Pulsed laser apparatus and method Pulsed laser apparatus and method

2006-10-10

2006-10-10

Harvey, Minsun Oh (Department: 2828)

Coherent light generators

Particular beam control device

Q-switch

C372S010000

Reexamination Certificate

active

07120174

ABSTRACT:
A laser apparatus for generating optical pulses is disclosed, said laser apparatus has a reflecting gain element preferably including a fiber gain medium. The reflecting gain element is coupled to a controllable reflecting/transmitting module having a reflecting state and a transmitting state, wherein the controllable reflecting/transmitting means are operable to switch from the transmitting state to the reflecting state to initiate a build-up of an optical pulse, and to switch back to the transmitting state for outputting the optical pulse before it reaches the reflecting/transmitting means after a cavity roundtrip. In a preferred embodiment, the controllable reflecting/transmitting module includes an acousto-optic switch at an output end of a laser operable to output the optical pulse in zeroth diffraction order.

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