Optical phase-modulating devices and methods for their operation
US5363457A · kind A · utility
17Cited by
11References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 15, 1993 |
| Grant date | Nov 8, 1994 |
| Priority date | — |
| Expiry date | Jul 15, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2201/12
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A semiconductor-based optical phase-modulating device has first and second pairs of phase-fixing electrodes bracketing a pair of phase-modulating electrodes. The phase-fixing electrodes fix electric fields across end regions of the phase-modulating device to reduce distributed resistance and capacitance of the phase-modulating device, thereby improving the frequency response of the phase-modulating device. The optical phase-modulating device is particularly applicable to use in integrated optic Mach-Zehnder interferometers used for optical signal modulation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.