Multi-mode optoelectronic oscillator with an adjustable free spectral range and a multi-mode signal generation method

An optoelectronic oscillator, technology in the spectral range, for applications in the field of microwave photonics
CN109768831AInactive Publication Date: 2019-05-17INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
Publication Date
2019-05-17
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention provides a multi-mode optoelectronic oscillator with an adjustable free spectral range and a multimode signal generation method, and belongs to the technical field of microwave photonics. The multimode optoelectronic oscillator comprises a laser, an intensity modulator, an electrically tunable delay optical fiber, an erbium-doped optical fiber amplifier, a photoelectric detector, anelectric amplifier and a power divider, wherein the laser is connected with the intensity modulator, the intensity modulator, the erbium-doped optical fiber amplifier, the photoelectric detector, theelectric amplifier and the power divider are sequentially connected end to end to form a loop, and the electric-tuning delay optical fiber is used for connecting the intensity modulator with the erbium-doped optical fiber amplifier. According to the invention, the free spectral range of the generated multi-mode signal can be periodically changed, and the free spectral range of the multi-mode signal can be rapidly and continuously adjusted.
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Description

technical field

[0001] The invention relates to the technical field of microwave photonics, in particular to a multi-mode photoelectric oscillator with adjustable free spectral range and a multi-mode signal generation method. Background technique

[0002] As a new type of microwave signal generator, the photoelectric oscillator can generate high-quality signals with high microwave frequency, high Q value, low phase noise, and has tunability and photoelectric output. It is an ideal microwave signal generator. device. With the development of technology, optoelectronic oscillators have also derived some new applications, such as the use of multi-mode optoelectronic oscillators for channelization and detection of weak signals. In 2009, V.J.Urick et al. proposed a structure of a multimode optoelectronic oscillator in their own research, and proposed that the multimode optoelectronic oscillator be used for channelization of radio frequency signals, which can be used in optical si...

Claims

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