Wavelength stabilized laser module and its manufacturing method Fiber laser using wavelength stabilized laser module

摘要

The present invention relates to a wavelength-stabilized laser module, comprising: a laser light source emitting laser light of a preset fundamental wavelength; and a micro-assembly package that receives the laser light emitted from the laser light source and passes or reflects only a preset wavelength band, wherein the micro-assembly package includes: a housing positioned in front of the laser light in a traveling direction and having a hollow inside; a light transmission unit formed on the first surface of the housing and incident or reflected in the same direction as the optical axis of the laser light; A first film formed on the second surface of the housing located in the opposite direction of the light transmitting unit, receiving the light incident through the light transmitting unit, and partially reflecting the received light with a predetermined reflectance; filter unit; and formed on the third surface of the housing located in the traveling direction of the light reflected by the first filter unit to receive the light reflected by the first filter unit, and reflect the received light with respect to a preset locking wavelength band It includes a second filter unit including a second film.