Two spherical lens optical coupler
US4842391A · kind A · utility
24Cited by
11References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 5, 1988 |
| Grant date | Jun 27, 1989 |
| Priority date | — |
| Expiry date | Feb 5, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/4226
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical coupling apparatus employing two spherical lenses between the optical signal source and the target. Each lens is positioned at its respective focal length from its associated optical element and is adjustable along a single axis. The lens adjustment axes are mutually perpendicular and both are perpendicular to the optical axis between the source and the target. The source may be a laser diode and the target is typically an optical fiber. This structure permits less than precise coaxial alignment between the source and target while maintaining desired optical coupling efficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.