Frequency stabilization of 3.5-THz and 4.7-THz quantum-cascade lasers by a phase-locked loop
Paper in proceeding, 2022

We report on a phase-locked loop for quantum-cascade lasers operating at 3.5 and 4.7 THz. These frequencies are particularly relevant in atmospheric science and astronomy. The QCLs are locked to the multiplied output of a frequency synthesizer using a Schottky diode harmonic mixer. The resulting linewidths are in the order of a few Hz.

terahertz

frequency stabilization

phase-locked loop

quantum-cascade laser

Author

Heiko Richter

German Aerospace Center (DLR)

Nick Rothbart

German Aerospace Center (DLR)

Martin Wienold

German Aerospace Center (DLR)

X Lu

Forschungsverbund Berlin E.V.

Lutz Schrottke

Forschungsverbund Berlin E.V.

Divya Jayasankar

Chalmers, Microtechnology and Nanoscience (MC2), Terahertz and Millimetre Wave Laboratory

Vladimir Drakinskiy

Chalmers, Microtechnology and Nanoscience (MC2), Terahertz and Millimetre Wave Laboratory

Mats Myremark

Chalmers, Microtechnology and Nanoscience (MC2), Terahertz and Millimetre Wave Laboratory

Jan Stake

Chalmers, Microtechnology and Nanoscience (MC2), Terahertz and Millimetre Wave Laboratory

Peter Sobis

Low Noise Factory AB

Chalmers, Microtechnology and Nanoscience (MC2), Terahertz and Millimetre Wave Laboratory

Anders Emrich

AAC Clyde Space AB

Heinz-Wilhelm Hübers

German Aerospace Center (DLR)

Humboldt University of Berlin

32nd International Symposium of Space Terahertz Technology, ISSTT 2022

32nd International Symposium of Space Terahertz Technology, ISSTT 2022
Baeza, Spain,

Subject Categories

Other Electrical Engineering, Electronic Engineering, Information Engineering

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3/21/2024