Slotted monolithic optical waveguides
US6424755B1 · kind B1 · utility
8Cited by
8References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 2, 1999 |
| Grant date | Jul 23, 2002 |
| Priority date | — |
| Expiry date | Jul 2, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/212
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical waveguide phase adjuster with enhanced sensitivity for instance for use in a Mach Zehnder has a monolithic integrated optics waveguide across which one or more thin, e.g. 10 &mgr;m, slots are made. The slots are filled with material whose refractive index varies strongly with temperature or applied field. The insertion loss of such a slot is small for thicknesses of less than about 25 &mgr;m, but begins to rise ever more rapidly thereafter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.