Optical spot array pitch compressor
US9485046B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2014 |
| Grant date | Nov 1, 2016 |
| Priority date | — |
| Expiry date | Feb 5, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2011/0026
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An apparatus comprises a passive wavelength division multiplexing (WDM) demultiplexer (DeMUX) or a passive WDM multiplexer (MUX), an active photo diode (PD) array or an active laser diode (LD) array, and a compressing device disposed between the passive WDM DeMUX or the passive WDM MUX and the active PD array or the active LD array. The compressing device changes the optical spot pitch of the passive WDM DeMUX or the passive WDM MUX to match the pitch of the active PD array or the active LD array. The compressing device may be a single optical wedge, a first and a second optical wedges, a plurality of optical wedges, or a grating. A compression ratio can be adjusted by changing the incident angle of the incident beam to the compressing device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.