Glass package for optical device
US7295730B2 · kind B2 · utility
0Cited by
10References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 2, 2005 |
| Grant date | Nov 13, 2007 |
| Priority date | — |
| Expiry date | Dec 2, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/29398
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A glass optical filter is described that optically connects two optical fibers and may filter a single or group of channels from a WDM signal that is being communicated between the optical fibers. The glass optical filter may be comprised of two pigtail tubes having smaller interior diameters than a center piece tube that couples the two pigtail tubes together. In one embodiment of the invention, D-lenses are positioned within the glass optical filter and function as focusing lenses. The characteristics of the glass housing and D-lens provide a preferred environment for aligning optical fiber pigtails to the focusing lenses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.