Power stabilization of semiconductor laser harmonic...

Details Power stabilization of semiconductor laser harmonic... Power stabilization of semiconductor laser harmonic...

2008-11-12

2010-11-02

Petkovsek, Daniel (Department: 2874)

Optical: systems and elements

Optical frequency converter

Harmonic generator

C359S326000

Reexamination Certificate

active

07826132

ABSTRACT:
The invention relates to a fiber laser and harmonic frequency conversion module incorporating a 90 degree Polarization Maintaining (PM) fiber fusion splice therebetween for providing temperature insensitive power stabilization. The present invention has found that incorporating at least one 90 degree splice of the transmission axes of the PM fiber, coupling a fast axis to a slow axis, to create substantially equal optical path lengths of the two transmission axes of the fiber coupling can nearly eliminate output amplitude fluctuation within a practical operating temperature range.

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