Optical: systems and elements – Optical frequency converter
Reexamination Certificate
2007-12-11
2009-12-08
Petkovsek, Daniel (Department: 2874)
Optical: systems and elements
Optical frequency converter
C372S022000, C372S106000
Reexamination Certificate
active
07630125
ABSTRACT:
A laser module including a light emitter, a polarizing and filtering unit, a nonlinear optical crystal, and a first filter is provided. The light emitter emits a first beam. The polarizing and filtering unit is disposed on a transmission path of the first beam. A part of the first beam passes through the polarizing and filtering unit to become a second beam with a specific polarization direction. The nonlinear optical crystal is disposed on a transmission path of the second beam from the polarizing and filtering unit. The nonlinear optical crystal converts a part of the second beam into a third beam. The first filter is disposed on a transmission path of a non-converted part of the second beam and the third beam from the nonlinear optical crystal. The non-converted part of the second beam is reflected by the first filter. The third beam passes through the first filter.
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Wu Hsin-Chang
Wu Shang-Yi
J.C. Patents
Petkovsek Daniel
Young Optics Inc.
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