Optical frequency comb generation method and device based on signal modulation
An optical frequency comb and generation device technology, which is applied in optics, nonlinear optics, instruments, etc., can solve the problems of non-adjustable optical frequency comb spacing, limited optical frequency comb bandwidth, and difficulty in implementation, and achieves high flatness and easy operation. Achieving the effect of simple device structure
Active Publication Date: 2021-09-07
HANGZHOU DIANZI UNIV
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[0006] However, in the above-mentioned solutions of the prior art, there are either the problem that the structure is complicated and difficult to realize, or there is the problem that the interval of the optical frequency comb is not adjustable, or there is the problem that the bandwidth of the optical frequency comb is limited
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[0028] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can better understand the technical solutions of the present invention.
[0029] Such as figure 1 As shown, the present embodiment is an optical frequency comb generation device based on signal modulation, including an adjustable continuous laser 1, a first Mach-Zehnder modulator 2, a signal generator 3, a second Mach-Zehnder modulator 4, An arbitrary waveform generator 5, a spectrum analyzer 6, an adjustable continuous laser 1, a first Mach-Zehnder modulator 2, a second Mach-Zehnder modulator 4, and a spectrum analyzer 6 are connected in sequence, and the signal generator 3 and The first Mach-Zehnder modulator 2 is connected, and the arbitrary waveform generator 5 is connected with the second Mach-Zehnder modulator 4 . The signal generator 3 is used to generate a modulation signal, and the signal is a radi...
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The invention discloses an optical frequency comb generation device and method based on signal modulation, the device comprises an adjustable continuous laser, a first modulator, a signal generator, a second modulator, an arbitrary waveform generator and a spectrum analyzer, the adjustable continuous laser, the first modulator, the second modulator and the spectrum analyzer are connected in sequence, the signal generator is connected with the first modulator, and the arbitrary waveform generator is connected with the second modulator. The device is simple in structure, easy to implement, adjustable in bandwidth of the optical frequency comb and high in flatness, low radio frequency signal frequency and large-bandwidth optical frequency comb are achieved, and the interval of the optical frequency comb is irrelevant to modulation signal frequency and modulator bandwidth and can be flexibly adjusted.
Description
technical field [0001] The invention belongs to the technical field of optical communication signal processing, and in particular relates to a method and device for generating an optical frequency comb based on signal modulation. Background technique [0002] An optical frequency comb (OFC, referred to as an optical frequency comb, also known as a frequency comb) refers to an optical signal composed of a series of frequency components that are evenly spaced and have a coherent and stable phase relationship on the spectrum. [0003] In principle, an optical frequency comb appears as a spectrum sequence with the same frequency interval in the frequency domain, and as an ultrashort pulse sequence in the time domain, and its frequency interval in the frequency domain and its pulse width in the time domain strictly follow Fourier transform relationship. Optical frequency comb is a comprehensive generator of optical frequency, so it has numerous frequency components, so it can be...
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IPC IPC(8): G02F1/35
CPCG02F1/3501G02F1/353G02F2203/56
Inventor 虞帅权池灏杨淑娜杨波翟彦蓉欧军
Owner HANGZHOU DIANZI UNIV