Semiconductor laser module, laser unit, and raman amplifier

Details Semiconductor laser module, laser unit, and raman amplifier Semiconductor laser module, laser unit, and raman amplifier

H - Electricity

01

S

H01S 5/065 (2006.01) G02F 1/00 (2006.01) H01S 5/022 (2006.01) H04B 10/17 (2006.01) H01S 3/30 (2006.01) H01S 5/024 (2006.01) H01S 5/06 (2006.01) H01S 5/14 (2006.01)

Patent

CA 2360890

The present invention provides a semiconductor laser module emitting a laser beam from a resonance section having a semiconductor laser device and a diffraction grating therein, and the semiconductor laser device is set in the multimode oscillation state, and by controlling a reflectivity spectrum form or a reflectivity of the diffraction grating, a laser beam spectrum emitted from the resonance section is arranged so that a plurality of longitudinal modes may be included within -3 dB from an optical amplitude of a main peak as a reference in a prespecified wavelength band widths including the main peak.

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