Apparatus to launch separated mode groups into optical fibers
US4770485A · kind A · utility
8Cited by
15References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 5, 1987 |
| Grant date | Sep 13, 1988 |
| Priority date | — |
| Expiry date | May 5, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/425
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An apparatus for launching separate mode groups comprising an LED (13) and a collimator (C.sub.1) for providing a first beam (19) of collimated light and an LED (15) and a collimator (C.sub.2) for providing a second beam (23) of collimated light. The beams (19) and (23) intersect and form an acute angle A. A light guide (R.sub.1) has a receiving face (27) at the intersection of the beams (19) and (23) so that the beams are launched into the light guide as first and second mode groups, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.