Anti-guided phase-locked array and manufacturing method therefor
US5323405A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1992 |
| Grant date | Jun 21, 1994 |
| Priority date | — |
| Expiry date | Sep 30, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/2059
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A phase-locked laser array comprising a plurality of element regions for passing electric current into an active layer; and inter-element regions formed between the element regions. Each of the inter-element regions is so formed as to have two regions, i.e. a non-diffusion region at the center thereof and a diffusion regions disposed on both sides thereof, thereby rendering the refractive index in the non-diffusion region higher than that in the diffusion regions. The method of manufacturing the phase-locked laser array which is characterized by including a step growing an optical waveguide layer of superlattice on a portion of a second clad layer while diffusing impurities doped in the second clad layer into said optical waveguide layer, thereby forming a diffusion regions on both sides of the inter-element region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.