Patent ID: 9252885
Filing Date: 2016-02-02
CPC Classification: H04B,H04J,Y10T

Claim Text:
1. A method for manufacturing a wavelength division multiplexing transmission apparatus, the method comprising, sequentially: positioning a plurality of laser devices along a line and fixing the laser devices to a first substrate; fixing a plurality of reflectors to a second substrate, wherein the reflectors are located at positions on the second substrate to multiplex laser beams emitted from the plurality of laser devices and to generate wavelength multiplexed light; placing a plurality of collimator lenses on the first substrate with a respective collimator lens in a respective path of each of the respective laser beams produced by the respective laser devices; adjusting position of at least one of the collimator lenses in a direction that is transverse to the laser beam incident on the collimator lens so that the laser beams making up the wavelength multiplexed light are parallel to each other in the multiplexed light; and after adjusting the position of at least one of the collimator lenses in a direction that is transverse to the laser beam incident on the respective collimator lens, fixing the collimator lenses to the first substrate.