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This article is cited in 2 scientific papers (total in 2 papers)
Laser applications and other topics in quantum electronics
Optoelectronic reference X-band oscillator for radar systems
A. L. Chizha, K. B. Mikitchuka, I. V. Skotorenkob a State Scientific and Production Association 'Optics, Optoelectronics and Laser Technology', National Academy of Sciences of Belarus, Minsk, Belarus
b LEMZ-T LLC, Tomsk
Abstract:
We present the design and results of studying the characteristics of an optoelectronic microwave oscillator in the freerunning regime are presented, propose a method for synchronising it with a signal of a highly stable crystal oscillator using a phaselocked loop, and analyse the results of an experimental study on the frequency instability of an optoelectronic microwave reference oscillator. The optoelectronic microwave reference oscillator with optical gain and a 10 GHz oscillation frequency simultaneously provides ultra-low phase noise (less than –142 dB Hz-1) at a 10 kHz frequency offset from the microwave carrier and a low level of spurs in the oscillation spectrum (no more than –94 dBc). In this case, the temperature coefficient of the oscillation frequency is determined by the temperature instability of a highly stable crystal oscillator.
Keywords:
optoelectronic microwave oscillator, reference oscillator, phase noise, phase-locked loop.
Received: 10.09.2020 Revised: 25.11.2020
Citation:
A. L. Chizh, K. B. Mikitchuk, I. V. Skotorenko, “Optoelectronic reference X-band oscillator for radar systems”, Kvantovaya Elektronika, 51:3 (2021), 254–259 [Quantum Electron., 51:3 (2021), 254–259]
Linking options:
https://www.mathnet.ru/eng/qe17406 https://www.mathnet.ru/eng/qe/v51/i3/p254
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