Wavelength stabilized laser module

Details Wavelength stabilized laser module Wavelength stabilized laser module

H - Electricity

01

S

H01S 5/068 (2006.01) H01S 5/022 (2006.01) H01S 5/0687 (2006.01) H01S 5/14 (2006.01)

Patent

CA 2340315

A wavelength stabilized laser module is provided which is so configured as to be simplified and smaller in size and is capable of emitting semiconductor laser light whose wavelength is stabilized with high accuracy. The wavelength stabilized laser module includes a semiconductor laser, a substrate, a lens to convert emitted semiconductor laser light to parallel luminous flux, a first photoelectric converter to receive a part of the parallel luminous flux and to convert it to electric signals, a filter to receive a part of the parallel luminous flux, a second photoelectric converter to receive light transmitted through the filter and to convert it to electric signals, wherein a control signal to be used for stabilization obtained by computations of electric signals fed from the converters is fed back to the semiconductor laser device and/or the substrate so that said semiconductor laser is able to stably emit laser light having a reference wavelength to be used as a target for stabilization.

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