Delta-Sigma Modulated Photodetection Method to Reduce Laser Power, Year 1

Completed TRL 3 (started at 1, targeting 3)

Description

The use of mixed-signal processing techniques implemented on integrated circuitry allows the detection of pico-watt optical signals. By using ratiometric methods, a real-time reading of differential absorption lidar information may be obtained. The system provides correlated measures between differing photodetector types allowing direct ratio measures between different species of absorbing materials.

Benefits

The oil/gas industry may have use in remote detection of leaking gases. There may be a possibility for use in chemical weapons detection. Portable methane detection for use in coal mines or other such environments seems feasible.

Details

Technology area	Sensors and Instruments > Remote Sensing Instruments and Sensors > Lasers
Program	Center Innovation Fund: LaRC CIF (LaRC CIF)
Lead organization	Langley Research Center, Hampton, VA
Start date	2011-08-01
End date	2013-01-01

Project contacts

Listed on TechPort itself — the most direct way to ask about this specific project.

Thomas D Mcglone — thomas.d.mcglone@nasa.gov

How to get involved

This is early/mid-stage (TRL 3) — the most realistic path in is NASA SBIR/STTR, which funds small businesses and research institutions to develop technology aligned with NASA's needs (equity-free, phased funding). Check whether a current SBIR/STTR solicitation topic overlaps with this project's technology area, or contact the project directly (above) to ask.

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