Apparatuses for reducing the sensitivity of an optical signal to polarization and methods of making and using the same
US9164247B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 28, 2011 |
| Grant date | Oct 20, 2015 |
| Priority date | — |
| Expiry date | Mar 2, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/4201
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Methods and apparatuses for reducing the sensitivity of an optical signal to polarization. The method generally includes (i) reflecting the optical signal from a first mirror at a first angle relative to the optical signal to a second mirror at a second angle, and (ii) further reflecting the reflected optical signal from the second mirror to a receiver. The apparatus generally comprises (i) a first mirror at a first angle relative to an incident optical signal and configured to reflect the incident optical signal, (ii) a second mirror at a second angle configured to further reflect the reflected optical signal to a first receiver, and (iii) a lens configured to focus and/or collimate the optical signal or the reflected optical signal. The first angle is configured to reduce polarization of the reflected optical signal, thereby maximizing the intensity or power of the optical signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.