Bubble stability in an optical switch
US6798939B2 · kind B2 · utility
1Cited by
14References
33Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2002 |
| Grant date | Sep 28, 2004 |
| Priority date | — |
| Expiry date | Aug 5, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/3576
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Bubble stability within an optical switch is enhanced by controlling the expansion or movement of a bubble from a liquid-containing trench into available adjacent spacing. Typically, the adjacent spacing is formed between an optical waveguide substrate and a heater substrate, where the heater substrate includes a microheater for forming the bubble. The bubble enhancement is provided by intentionally altering surface features along at least one of the substrates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.