Wavelength multiplexed, electro-optically controllable, fiber optic multi-tap delay line
US5917970A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 21, 1998 |
| Grant date | Jun 29, 1999 |
| Priority date | — |
| Expiry date | Apr 21, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/2861
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The wavelength multiplexed, electro-optically controllable, fiber optic multi-tap delay line utilizes a first output signal from a plurality of amplitude adjustable continuous-wave (CW) optical lasers multiplexed to form a combined optical signal onto which a radio frequency signal is imposed thereby shifting the combined optical signal which is then demultiplexed. A second output signal of the plurality of CW lasers is phase adjusted and combined with the demultiplexed combined optical signal to form a RF phase adjusted modulated optical signal. The plurality of phase adjusted modulated optical signals pass through associated optical delay lines and are multiplexed to form a single optical signal containing a plurality of optical channels having different characteristics which is applied to a detector to produce an output electrical signal for transmission to using devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.