| 摘要 |
<p>A semiconductor laser module is capable of achieving stabilization of the central wavelength and low coupling loss. The semiconductor laser module of the present invention comprises a semiconductor laser element (1), a lens system for condensing laser light onto an optical fiber (2, 3), a band-pass filter (4) for transmitting laser light having a predetermined wavelength, and an optical fiber. The band-pass filter is held by holding means having a mechanism for tilting the band-pass filter at a desired angle relative to the travelling direction of the laser light. A reflecting point (6) for reflecting part of the incident laser light is provided in a waveguide of the optical fiber so that a resonator is formed between the reflecting point and the emitting end face of the semiconductor laser element. Preferably, control of the tilting mechanism is conducted via a control unit in response to an output from a thermal sensor. <IMAGE></p> |
