Apparatus and method for linearized cascade coupled integrated optical modulator
US5148503A · kind A · utility
80Cited by
13References
23Claims
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Key dates
| Filing date | May 29, 1991 |
| Grant date | Sep 15, 1992 |
| Priority date | — |
| Expiry date | May 29, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/19
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A Y-branch type first interferometric modulator, and a coupler structure type second interferometric modulator are connected in cascade. The levels of DC bias voltages applied to the first and second interferometric modulators, respectively, are adjusted for maximizing the linearity of a modulated output light signal. The configuration of input and output coupler structures of the second interferometric modulator are predetermined for also contributing to maximizing the linearity of the output signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.