Semiconductor laser element with excellent high-temperature characteristic and capable of being readily mounted on an optical circuit board
US5511089A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 17, 1994 |
| Grant date | Apr 23, 1996 |
| Priority date | — |
| Expiry date | Aug 17, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/1039
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In a semiconductor laser element which has a semiconductor block including a first end surface, a second end surface opposite to the first end surface, and a principal surface contiguous to the first and the second end surfaces, the internal end surface is defined by forming a groove from the principal surface, creating an internal end surface opposite to the second end surface and nearer to the second end surface than the first end surface is. The internal end surface serves as a front laser beam emitting surface while the second end surface serves as a rear laser beam emitting surface. Thus, an optical resonator is provided between the internal and the second end surfaces. The internal end surface is spaced apart from the second end surface by a length of 150 .mu.m, which is different from a length of the semiconductor block.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.