Phase Locking of 3.5-THz and 4.7-THz Quantum-Cascade Lasers Using a Schottky Diode Harmonic Mixer
Paper in proceeding, 2021

High frequency accuracy and stability are important requirements for local oscillators in terahertz heterodyne spectrometers. We report on a phase-locked loop for quantum-cascade lasers (QCLs) operating at 3.5 and 4.7 THz, two very important frequencies in atmospheric science and astronomy. The QCLs are locked to the multiplied output of a frequency synthesizer using a Schottky diode harmonic mixer.

Schottky diode

Space Instrumentation

Mixers

Heterodyne receivers

Terahertz

Author

Heiko Richter

German Aerospace Center (DLR)

Nick Rothbart

German Aerospace Center (DLR)

Martin Wienold

German Aerospace Center (DLR)

Xiang Lü

Paul Drude Institut fur Festkorperelektronik

Lutz Schrottke

Paul Drude Institut fur Festkorperelektronik

Holger T. Grahn

Paul Drude Institut fur Festkorperelektronik

Divya Jayasankar

RISE Research Institutes of Sweden

GigaHertz Centre

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

Vladimir Drakinskiy

GigaHertz Centre

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

Jan Stake

GigaHertz Centre

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

Peter Sobis

Omnisys Instruments

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

GigaHertz Centre

Heinz-Wilhelm Hübers

German Aerospace Center (DLR)

International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz

21622027 (ISSN) 21622035 (eISSN)

46th International conference on Infrared, Millimeter, and Terahertz waves
Chengdu, China,

THz Schottky diode mixers for high resolution FIR spectroscopy

Swedish National Space Board (170/17), 2018-01-01 -- 2019-12-31.

Swedish National Space Board, 2018-01-01 -- 2019-12-31.

Areas of Advance

Information and Communication Technology

Infrastructure

Kollberg Laboratory

Nanofabrication Laboratory

Subject Categories

Other Electrical Engineering, Electronic Engineering, Information Engineering

More information

Latest update

9/30/2021