Ultra-Low Noise Quad Photoreceiver for Space Based Laser Interferometric Gravity Wave Detection, Phase I

Metadata Updated: March 22, 2019

Gravity wave detection using space-based long-baseline laser interferometric sensors imposes stringent noise requirements on the system components, including the large area photoreceiver front ends. The proposed innovation utilizes dual depletion region technology to produce a large area (1mm diameter) 2x2 quad p-i-n InGaAs photodiode array having ~2.1pF capacitance per quadrant. The small capacitance of the quad photodiode array is leveraged in combination with a low-noise JFET-input operational amplifier to manufacture ultra-low noise quad photoreceiver array. Each element (quadrant) of the photoreceiver array will have an input equivalent current noise <2pA/sq.rt. Hz in a frequency range of 2 to 20MHz. This will enable shot noise dominated performance at an optical local oscillator power of ~100mW per quadrant.

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Public: This dataset is intended for public access and use. License: U.S. Government Work

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Metadata Created Date August 1, 2018
Metadata Updated Date March 22, 2019

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Harvested from NASA Data.json

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Resource Type Dataset
Metadata Created Date August 1, 2018
Metadata Updated Date March 22, 2019
Publisher Space Technology Mission Directorate
Unique Identifier TECHPORT_8187
Maintainer
TECHPORT SUPPORT
Maintainer Email
Public Access Level public
Bureau Code 026:00
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://data.nasa.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Datagov Dedupe Retained 20190322035503
Harvest Object Id 215e5341-5863-40b4-b8b7-d4208750c140
Harvest Source Id 39e4ad2a-47ca-4507-8258-852babd0fd99
Harvest Source Title NASA Data.json
Data First Published 2009-07-01
Homepage URL https://techport.nasa.gov/view/8187
License http://www.usa.gov/publicdomain/label/1.0/
Data Last Modified 2018-07-19
Program Code 026:027
Source Datajson Identifier True
Source Hash 822c024525f8d12a0d3855eab06c6b64ddfac110
Source Schema Version 1.1

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