Micro-optic delay element for use in a polarization multiplexed system
US6607313B1 · kind B1 · utility
28Cited by
14References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 23, 1999 |
| Grant date | Aug 19, 2003 |
| Priority date | — |
| Expiry date | Jun 23, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J14/08
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A micro-optical delay element for a polarization time-division multiplexing scheme is disclosed wherein two light beams are provided to a polarization beam splitter/combiner (PBS/C) in the absence of optical fiber. At least one beam exiting a modulator is collimated and reaches the (PBS/C) unguided as a substantially collimated beam. In this manner the polarization state of the beam is substantially unchanged. This obviates a requirement for polarization controllers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.