Ultra-wide-spectrum soliton optical frequency comb generation device based on zero-dispersion fp micro-resonator

Abstract

An ultra-wide-spectrum soliton optical frequency comb generation device based on a zero-dispersion Fabry-Perot microcavity, comprising a tunable pulsed light laser, a first connecting fiber, an optical amplifier, a second connecting fiber, a polarization controller, a third Connecting fiber, circulator, fourth connecting fiber, auxiliary test fiber, zero-dispersion FP microresonator, output fiber, coupler, first branch fiber of coupler, bandpass filter, fifth connecting fiber, first photodetector a device, a first radio frequency connection line, a spectrum analyzer, a second branch fiber of the coupler, a second photodetector, a second radio frequency connection line and an oscilloscope. The invention can effectively store the optical pumping energy, thereby reducing the requirement for the power of the pumping pulse. In addition, the FP microresonator has nonlinear filtering effect, which can significantly reduce the frequency noise of pulsed pumping, resulting in better coherence between the wide optical frequency combs.

Description

technical field [0001] The invention relates to the technical field of optical frequency combs based on micro-resonator cavity, in particular to an ultra-wide-spectrum soliton optical frequency comb generation device and operation method based on zero-dispersion Fabry-Perot (FP) micro-cavity. Background technique [0002] The soliton optical frequency comb based on microresonator has the advantages of high repetition frequency, large spectral bandwidth and low phase noise, and is a potential ideal solution to replace the traditional high energy consumption and cumbersome desktop light source, in optical frequency synthesis, coherent optical communication, Lidar, coherent optical tomography and optical atomic clocks have important application value. [0003] However, compared with the traditional mode-locked laser-based optical frequency comb generation scheme, the soliton optical frequency comb in the microcavity has a long-standing problem to be solved, which cannot maintai...

AI Technical Summary

Problems solved by technology

Although the repetition frequency of the soliton optical comb generated by this scheme is ~10 GHz, the spectral width of the soliton optical comb is limited by the bandwidth of the intracavity passband filter, and it is impossible to generate a wide-spectrum soliton optical frequency comb.

[0012] Therefore, in view of the above-mentioned problem that the microcavity optical frequency comb cannot have both small repetition frequency and large spectral band, a scheme that can generate a soliton optical frequency comb in a microcavity with a longitudinal mode spacing of ~10 GHz is needed, and at the same time, the spectral width is at least Covering 2 / 3 octaves to solve the requirements of frequency stability and signal detectability in the application of microcavity optical combs

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