Quantum Cascade-Based THz Laser

Compact, electrically-efficient, room-temperature, tunable, and narrow-frequency sources of coherent THz emission are desired for many DoD missions, including sensing, ranging, and communications. Physical Sciences Inc. (PSI) is leading the integration of THz wavelength quantum cascade lasers in remote sensing applications for a variety of DoD agencies and here proposes to develop a novel quantum cascade device as an integrated non-linear-optical THz source that offers promise for near-term, room-temperature operation. Working with Harvard University, we will develop and characterize the THz sources for application in point-to-point communication links in the Phase I portion of the program. The Phase II will develop and demonstrate a complete room-temperature transceiver communications link. PSI's extensive reach within the DoD sensing community will ensure that the new sources are efficiently integrated into these ongoing efforts.