Laser diode module
US5247530A · kind A · utility
21Cited by
1References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 31, 1991 |
| Grant date | Sep 21, 1993 |
| Priority date | — |
| Expiry date | Oct 31, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/4248
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A laser diode module in which a laser diode chip and an optical fiber pig-tail adjusted in optical axis relative to this laser diode are loaded on a package, and a ferrule provided at the tip end of the optical fiber pig-tail is fixed at the lateral wall of this package, the package and the ferrule being coupled via a bellows. The bellows absorbs a relative displacement in the axial direction of the ferrule, which is caused between the package and the ferrule by the fluctuation of the ambient temperature, thereby to prevent the optical axes of the laser diode chip and the ferrule from being misaligned.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.