Optical fiber multiplexer for Raman spectroscopy
US6859581B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 2, 2003 |
| Grant date | Feb 22, 2005 |
| Priority date | — |
| Expiry date | Apr 7, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/3582
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical fiber multiplexer having a fixed plate and a rotating plate. A plurality of fiber-optic channels are coupled to the fixed plate in a circumferential arrangement. One fiber-optic channel is coupled to the rotating plate. Each fiber-optic channel may include one or more separate optical fibers. A servo motor rotates the rotating plate. Switching between channels occurs by rotating the rotating plate and aligning the optical fibers on the fixed plate and the rotating plate. Lens-to-lens coupling is used to transmit optical signals between the rotating and fixed plates. An adjustment device, such as a gimbal mount, may be used to adjust the horizontal and vertical axial alignment of the optical fibers coupled to the fixed plate so that optimum light signal transmission can occur. A control unit controls the operation of the servo motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.