Phase-locked loop control of passively Q-switched lasers

Details Phase-locked loop control of passively Q-switched lasers Phase-locked loop control of passively Q-switched lasers

2005-06-21

2005-06-21

Tran, Thuy V. (Department: 2821)

Coherent light generators

Particular beam control device

Q-switch

Reexamination Certificate

active

06909730

ABSTRACT:
Methods and apparatus for controlling a passively Q-switched laser (PQSL) that use a Q-switched laser as a voltage controlled oscillator (VCO) in a phase-locked loop control circuit are disclosed. The PQSL may be optically coupled to a detector. The detector may be coupled to a an input of a phase lock loop controller. A reference oscillator may be coupled to a reference input of the phase lock loop controller. An output of the phase lock loop controller may be coupled to an integrator. The integrator may be coupled to a means for controlling an amount of power provided to the PQSL.

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