Two-port high isolation filter
US10281652B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 29, 2017 |
| Grant date | May 7, 2019 |
| Priority date | — |
| Expiry date | Jul 10, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/29379
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical signal isolation device comprising a common port, an isolated diagnostic port, an integrated circulator comprising an input circulator fiber, an output circulator fiber, and a fiber-to-fiber optical coupler configured to couple an isolated optical signal propagating along the input circulator fiber to the output circulator fiber for propagation along the output circulator fiber, a multi-fiber alignment body that secures at least portions of each of the multi-signal fiber, the isolated diagnostic signal fiber, the input circulator fiber, and the output circulator fiber, and a wavelength-selective optical assembly including an optical signal filter, fiber-to-filter focusing optics, and a communications signal reflector. The integrated circulator and the wavelength selective optical assembly are configured such that the communications component is retro-reflected back to the common port and the diagnostic component is passes out of the isolated diagnostic port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.