Electrical distribution system for semiconductor laser integrated circuit
US5309470A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 10, 1992 |
| Grant date | May 3, 1994 |
| Priority date | — |
| Expiry date | Dec 10, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/42
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention applies to a laser integrated circuit comprising at least one row of lasers (30) lying between two reflector strips (28). The lasers (18) are electrically connected in parallel. The light emission along the strip will be more uniform if the electrical current is distributed by two "combs" whose "teeth" are parallel to the laser ribbons (18) and interleaved with them. The terminal metallized area (44) for the first comb is deposited at the bottom of a recess (18) and the terminal metallized areas (45) for the second comb are on the surface of the row. Such a device finds particular application to the power supply for laser integrated circuits.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.