Multi-channel optical transceiver module including thermal arrayed waveguide grating multiplexer and athermal arrayed waveguide grating demultiplexer
US-2016127044-A1 · May 5, 2016 · US
Aligning and directly optically coupling photodetectors to optical demultiplexer outputs in a multichannel receiver optical subassembly
US9509433B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9509433-B2 |
| Application number | US-201314088883-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 25, 2013 |
| Priority date | May 14, 2013 |
| Publication date | Nov 29, 2016 |
| Grant date | Nov 29, 2016 |
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Abstract
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A multi-channel receiver optical subassembly (ROSA) such as an arrayed waveguide grating (AWG), with outputs directly optically coupled to respective photodetectors such as photodiodes. In one embodiment, an AWG may be configured such that optical components of the AWG do not interfere with direct optical coupling, and the wire bonding points on the photodiodes may also be configured such that wire bonding does not interfere with direct optical coupling. The photodetectors may also be mounted on a photodetector mounting bar with a pitch sufficiently spaced to allow connection to floating grounds. A passive alignment technique may be used to determine the mounting locations on the photodetector mounting bar such that the photodetectors are aligned with the optical outputs.
First claim
Opening claim text (preview).
What is claimed is: 1. A multi-channel receiver optical subassembly (ROSA) comprising: a ROSA housing; an optical demultiplexer located in the ROSA housing, the optical demultiplexer including multiple optical outputs corresponding to multiple channels, the optical demultiplexer being configured to receive a wavelength division multiplexed (WDM) optical signal on multiple channel wavelengths and to demultiplex the WDM optical signal to produce demultiplexed optical signals on th…
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- H04J14/0246Primary
Electricity · mapped topic
- H04J14/025Primary
Electricity · mapped topic
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
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- What does patent US9509433B2 cover?
- A multi-channel receiver optical subassembly (ROSA) such as an arrayed waveguide grating (AWG), with outputs directly optically coupled to respective photodetectors such as photodiodes. In one embodiment, an AWG may be configured such that optical components of the AWG do not interfere with direct optical coupling, and the wire bonding points on the photodiodes may also be configured such that …
- Who is the assignee on this patent?
- Applied Optoelectronics Inc
- What technology area does this patent fall under?
- Primary CPC classification H04J14/0246. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Nov 29 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).