Multiple Wavelength Quantum Dot Laser

An innovative method to achieve optical gain over a wide spectral range using new laser materials is being investigated. Multiple wavelength quantum dot lasers (MW-QDL) will be designed to generate emission and gain over a range of wavelengths from the UV-vis to MIR spectral regions. New quantum dot laser materials will be characterized and the best candidate materials will be chosen for MW-QDL. A new method for generating tunable wavelengths employing quantum dot lasers is being investigated. Quantum dots will be engineered to produce emission and laser gain over a range of wavelengths from the UV-vis to mid-infrared spectral regions. Atmospheric species such as O3, CO2, NO2, and CH4 will be targeted for predication of the consequences of atmospheric sciences. These molecules have numerous strong optical resonances in the mid-infrared. However, according to the Decadal Survey, mid-infrared lasers needed for future missions do not exist. This project addresses a need for a compact, tunable laser source.

MW-QDL is a new exploration pathway into novel compact, multiplex quantum dot-based laser sources. The investigation is focused on visionary aeronautics and space exploration. This is a potentially enabling technology for missions seeking compact, multiple wavelength quantum-dot based laser sources. The Decadal Survey recommends missions, such as GACM, to measure atmospheric constituents, but has stated that there is presently no suitable laser for GACM. An anticipated benefit of this project is to invent the specialized lasers that may be useful for future missions. MW-QDL will cover a wide operating range (UV-vis to MIR). This technology could enable compact, light weight, multiplex lasing capability for commercial space exploration.

This is early/mid-stage (TRL 5) — 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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