Control device for photoelectric oscillator and photoelectric oscillator control system
A technology of photoelectric oscillators and control devices, which is applied in the direction of lasers, laser components, circuits, etc., can solve the problems of low long-term stability of photoelectric oscillators, and achieve the effect of controlling long-term stability
Active Publication Date: 2014-12-24
HUNAN INST OF TECH
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[0006] The main purpose of the present invention is to provide a control device and a photoelectric oscillator control system for photoelectric oscillators, to solve the problem of low long-term stability of photoelectric oscillators in the prior art
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[0019] It should be noted that the embodiments in the present application and the features of the embodiments may be combined with each other in the case of no conflict. The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
[0020] In order to make those skilled in the art better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only Embodiments are part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0021] It should be noted that the...
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The invention discloses a control device for a photoelectric oscillator and a photoelectric oscillator control system. The control device comprises a phase shifter, a collecting unit, a frequency mixer and a servo module, wherein the phase shifter is connected with an injection source and used for performing phase shifting on a second signal; the collecting unit is connected with the output end of the photoelectric oscillator and used for collecting a feedback signal generated by coupling the output signal of the photoelectric oscillator; the frequency mixer is respectively connected with the phase shifter and the collecting unit and used for performing phase demodulation on the second signal after phase shifting and the feedback signal; the servo module is connected with the frequency mixer and the photoelectric oscillator respectively and used for controlling the phase of the output signal of the photoelectric oscillator to locked on the second signal according to the signal after phase demodulation. By the control device, the problem that the photoelectric oscillator in the prior art is poor in long-term stability, and the long-term stability of the OEO output signal can be controlled.
Description
technical field [0001] The present invention relates to the field of optoelectronics, and in particular, to a control device for optoelectronic oscillators and a optoelectronic oscillator control system. Background technique [0002] Ultra-stable oscillators are at the heart of electronic communication systems. High-quality microwave oscillators play an important role in optical communications, satellite communications, microwave communications, and high-precision measurements. The traditional microwave source is generally obtained by multiple frequency doubling of the crystal oscillator, but with the increase of the frequency doubling times, the phase noise (short-term stability) will become larger and larger, that is to say, the phase noise will increase with the increase of the carrier frequency. and increase. The invention of Opto-Electronic Oscillator (OEO for short) solves this problem. The phase noise of OEO based on fiber delay does not increase with the increase o...
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IPC IPC(8): H01S3/13
Inventor 洪俊姚胜兴张松华严亚周
Owner HUNAN INST OF TECH