Patent ID: 9397254
Filing Date: 2016-07-19
CPC Classification: G02B,H01L,H01S

Claim Text:
1. A method for implementing an SLD (superluminescent diode) that is a light source of a wavelength tunable laser, the method comprising: growing a first epi layer on top of an SI (semi-insulating substrate); re-growing a butt layer based on the first epi layer; forming a tapered SSC (spot size converter) on the re-grown butt layer; forming an optical waveguide on an active area that is based on the first epi layer and on an SSC area that is based on the tapered SSC; forming an RWG (ridge waveguide) on the optical waveguide; forming a polyimide layer on one side of the RWG in the active area; and forming a p-type electrode and an n-type electrode.