Pre-form for and methods of forming a hollow-core slotted PBG optical fiber for an environmental sensor
US8133593B2 · kind B2 · utility
3Cited by
6References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 26, 2008 |
| Grant date | Mar 13, 2012 |
| Priority date | — |
| Expiry date | Aug 26, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2933
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A preform for forming a hollow-core, slotted photonic band-gap (PBG) optical fiber for use in an environmental sensor, and methods of forming such a fiber using the preform are disclosed. The preform comprises a slotted cladding tube that surrounds a slotted, hollow-core PBG cane. The slots in the cladding tube and PBG cane are longitudinally formed and substantially aligned with each other. When the preform is drawn, the slots merge to form an elongated side opening or slot in the resulting hollow-core PBG fiber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.