High-power low-loss GRINSCH laser

摘要

A GRINSCH laser having an asymmetric configuration wherein the optical confinement is weighted more to the n-doped multilayer section than to the p-doped multilayer section. The GRINSCH laser can emit laser light at a wavelength λ=976 nm over a broad area with a beam power of 11.4 W at a 12 A bias current at a temperature of 20° C. Fabry-Perot and distributed Bragg reflector GRINSCH laser configurations are disclosed.

主权项

1. A gradient-index separate-confinement heterostructure (GRINSCH) laser that emits light having an output power, comprising:
a lasing layer comprising a quantum-well structure; an n-doped multilayer section having a first thickness T1; a p-doped multilayer section having second thickness T2; wherein the p-doped and n-doped multilayer sections sandwich the lasing layer; a p-cladding layer and a p-contact layer disposed adjacent the p-doped multilayer section opposite the laser layer; a n-cladding layer and a n-contact layer disposed adjacent the n-doped multilayer section opposite the laser layer; and wherein the first and second thicknesses T1 and T2 define a thickness ratio RT=T1/T2, wherein 2≦RT≦8, wherein greater than 60% of the light is confined to the n-doped multilayer section as compared to the p-doped multilayer section, and wherein the output power is between 4 W and 11.4 W.