Analog+digital phase and frequency detector for phase locking of diode lasers
نویسندگان
چکیده
منابع مشابه
Analog+digital phase and frequency detector for phase locking of diode lasers
We describe a type of phase and frequency detector employing both an analog phase detector and a digital phase and frequency detector. The analog and digital detectors are mutually exclusive so that only one of them is active at any given time, resulting in a phase detector with both the broad capture range of digital circuits and the high speed and low noise of analog mixers. The detector has ...
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Marco Leonetti,1,2,* Claudio Conti,3 and Cefe López4,† 1Institute of Chemical and Physical Processes, Italian National Research Council, UOS Roma Kerberos, Universitá La Sapienza, P. le A. Moro 2, I-00185 Rome, Italy 2Center for Life Nano Science at Sapienza, Istituto Italiano di Tecnologia, Viale Regina Elena, 291-00161 Rome, Italy 3Department of Physics, University Sapienza, P. le Aldo Moro 5...
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The 23rd and 31st harmonics of a microwave signal generated in a novel THz balanced Schottky diode mixer were used as a frequency stable reference source to phase lock solid-nitrogen-cooled 2.324 and 2.959 THz quantum cascade lasers. Hertz-level frequency stability was achieved, which was maintained for several hours.
متن کاملPhase locking of 2.324 and 2.959 THz quantum cascade lasers using a Schottky diode harmonic mixer
The 23rd and 31st harmonics of a microwave signal generated in a novel THz balanced Schottky diode mixer were used as a frequency stable reference source to phase lock solid-nitrogen-cooled 2.324 and 2.959 THz QCLs. Hertz level frequency stability was achieved, which was maintained for several hours. Steady improvements in THz QCL performance over the last decade [1] has generated considerable ...
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ژورنال
عنوان ژورنال: Review of Scientific Instruments
سال: 2005
ISSN: 0034-6748,1089-7623
DOI: 10.1063/1.1914785