Technique for coupling laser diode to optical fiber
US5088803A · kind A · utility
31Cited by
5References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 23, 1990 |
| Grant date | Feb 18, 1992 |
| Priority date | — |
| Expiry date | Mar 23, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/4246
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A technique for coupling the output of a laser diode (30) to an optical fiber (32) entails disposing an optical train (37,38) between the source and the fiber, and locating the fiber end at or near the exit pupil of the optical train. In one embodiment of the invention, light from the laser diode source is imaged by a first lens (37) of focal length f.sub.1, forming a magnified real image of the source at a convenient distance, the real image is reimaged by a second lens (37) of focal length f.sub.2, and the fiber end is located at the exit pupil. The real image may be reimaged approximately at infinity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.