Patent ID: 8902944
Filing Date: 2014-12-02
Classification: H01S

Abstract:
1. A multi-wavelength light source, comprising: a plurality of laser diode gain elements, each having a front and a back, with the front providing an output, with the back coated with high reflectivity layers and the output antireflection coated, each gain element allowing for lasing at least any of a plurality of wavelengths; a planar lightwave circuit (PLC) including wavelength selective filters, the planar lightwave circuit configured to route light from a plurality of antireflection coated inputs of the PLC to a single output and to reflect, using a low reflectivity coating on the single output, at least some of the light from the single output back to the plurality of inputs on a wavelength selective basis using the wavelength selective filters, such that light of different wavelengths are routed to different inputs of the plurality of inputs; and a plurality of lenses, each configured to couple light between one of the laser diode gain elements and a corresponding input of the plurality of inputs of the PLC; and further comprising a plurality of moveable stages, with each of the plurality of lenses being mounted on a corresponding moveable stage repositionable during an alignment process; wherein each corresponding moveable stage comprises a lever.