Chirp control of a Mach-Zehnder optical modulator using non-equal power splitting
US5524076A · kind A · utility
49Cited by
13References
16Claims
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Key dates
| Filing date | May 25, 1995 |
| Grant date | Jun 4, 1996 |
| Priority date | — |
| Expiry date | May 25, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/255
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A Mach-Zehnder optical modulator in which the chirp parameter can be varied by adjusting the optical power splitting ratio between the two arms of the interferometer. The modulating voltage is supplied to a single arm or alternatively to both arms in a push-pull configuration. For an appropriate power splitting ratio negative chirp is achieved with approximately equal push-pull modulating drive voltage. This results in optimum distance and bit rate characteristics with low drive power.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.