Temperature compensated fiber Fabry-Perot filters
US5422970A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 3, 1993 |
| Grant date | Jun 6, 1995 |
| Priority date | — |
| Expiry date | Dec 3, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/3845
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Improved ferrule alignment fixtures for use in fiber Fabry-Perot (FFP) filters are provided. The inventive alignment fixtures have ferrule holders with shaped passageways for holding fiber-containing ferrules in three-point contact which allow fiber alignment using a rotary alignment technique. The FFPs have a fiber ferrule assembly which when aligned in the inventive ferrule holder forms an optical cavity between mirrors transverse to the fiber in the ferrule assembly. Wavelength tunable FFPs have a piezoelectric transducer interposed between the ferrule holders which can be used to change the length of the optical cavity and tune the filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.