Electro-optic modulator with continuously adjustable chirp
US6650458B1 · kind B1 · utility
34Cited by
2References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 26, 2002 |
| Grant date | Nov 18, 2003 |
| Priority date | — |
| Expiry date | Sep 26, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/25
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electro-optic modulator having a continuously adjustable chirp is provided. Optical signals input into the electro-optic modulator are divided into portions which are phase modulated in opposite senses, one portion imparted with a positive chirp and the other with a negative chirp. Variable couplers are used to adjust (by way of adjusting their coupling ratios) the amount of power allocated between the optical signals contributing to the positive chirp and the power of signals contributing to the negative chirp so that when the optical signals are combined an optical signal with an adjustable chirp is produced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.