Small Business Innovation Research/Small Business Tech Transfer
Ultra-Low Noise Quad Photoreceiver for Space Based Laser Interferometric Gravity Wave Detection, Phase I
Project Introduction
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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Primary U.S. Work Locations and Key Partners
| Organizations Performing Work | Role | Type | Location |
|---|---|---|---|
Goddard Space Flight Center
(GSFC)
|
Lead Organization | NASA Center | Greenbelt, Maryland |
| Discovery Semiconductors, Inc. | Supporting Organization |
Industry
Minority-Owned Business
|
Ewing, New Jersey |
Primary U.S. Work Locations
-
Maryland
-
New Jersey
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Organizational Responsibility
Responsible Mission Directorate:
- Space Technology Mission Directorate (STMD)
Lead Center / Facility:
- Goddard Space Flight Center (GSFC)
Responsible Program:
- Small Business Innovation Research/Small Business Tech Transfer
Project Management
Program Director:
Program Manager:
Project Duration
Start: Jan 2009
End: Jul 2009
Technology Areas
Primary:
- TX08 Sensors and Instruments
- TX08.1 Remote Sensing Instruments/Sensors
- TX08.1.1 Detectors and Focal Planes
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