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US 2018/0026425 A1Published application
Semiconductor laser oscillator
AssigneeAmada Holdings Co., Ltd.
InventorKaori USUDA
Life of this patent
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Abstract
A semiconductor laser oscillator includes laser diode modules. A temperature sensor directly or indirectly detects a temperature of at least one of the laser diode modules. A collimating lens collimates respective lasers emitted from the laser diode modules. A grating performs spectrum beam coupling for the lasers emitted from the collimating lens. An incident angle varying mechanism changes incident angles of the respective lasers, at which the lasers emitted from the collimating lens are incident onto the grating in response to the temperature detected by the temperature sensor.
Claims4
A semiconductor laser oscillator comprising:
- a plurality of laser diode modules;
- a temperature sensor configured to directly or indirectly detect a temperature of at least one laser diode module among the plurality laser diode modules;
- a collimating lens configured to collimate respective lasers emitted from the laser diode modules;
- a grating configured to perform spectrum beam coupling for the lasers emitted from the collimating lens;
- and
- an incident angle varying mechanism configured to change incident angles of the respective lasers, at which the lasers emitted from the collimating lens are incident onto the grating, in response to the temperature detected by the temperature sensor.
3 more elements
Dependencies are inferred from the claim text.