NxN parallel optical transceiver
US9709759B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 18, 2014 |
| Grant date | Jul 18, 2017 |
| Priority date | — |
| Expiry date | Apr 18, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2006/12123
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An N×N parallel optical transceiver includes a printed circuit board, a laser driving control chip, one or more lasers, two GRIN lenses, an optical band-pass filter, a multimode fiber array and a photodiode array. In the transmitter, laser beams of the same wavelength simultaneously output from the laser chip are first focused by the first GRIN lens, then the beams pass through a wavelength band-pass filter and are refocused by the second GRIN lens, and enter the channels in the multimode fiber array. In the receiver, laser beams of a different wavelength from the multimode fiber array are focused by the second GRIN lens, then reflected by the band-pass filter, refocused by the second GRIN lens, and received by the photodiode array. The multi-channel parallel transceiver has a small form, and can integrate a DFB or FP laser chip and GRIN lenses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.