Method and apparatus for using a hologram to control the optical field distribution of light generated by a light source and launched into an end of an optical waveguide
US8019233B2 · kind B2 · utility
3Cited by
4References
21Claims
0Family size
Assignee
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Key dates
| Filing date | May 30, 2008 |
| Grant date | Sep 13, 2011 |
| Priority date | — |
| Expiry date | Apr 10, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B19/0052
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A diffractive coupling element based on a computer-generated hologram is used in an optical coupling system of a transmitter to control the launch of laser light from a laser light source onto an end of an optical fiber. The diffractive coupling element controls the launch of the laser light such that a desired optical intensity distribution pattern is provided that substantially avoids the center and edge refractive index defects contained in the optical fiber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.