Multichannel receiver optical subassembly with improved sensitivity
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United States of America Patent
Stats
-
Dec 19, 2017
Issued Date -
N/A
app pub date -
Mar 23, 2015
filing date -
Mar 23, 2015
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
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, the photodetectors are mounted on a photodetector mounting bar that includes a multiple conductive photodetector pads (PD pads). Each of the PD pads may be configured to receive a photodetector, and the PD pads are electrically isolated from ground such that the photodetectors are floating. The photodetector bar further includes multiple conductive transimpedance amplifier pads (TIA pads). Each of the TIA pads may be configured to receive a TIA, associated with one of the photodetectors, and to be electrically coupled to one or more ground ports of the TIA. The TIA pads are electrically connected to a common ground shared be each of said TIAs.
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Cited Art Landscape
Patent Citation Ranking
- 2 Citation Count
- H01L Class
- 18.50 % this patent is cited more than
- 8 Age
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