Tunable ultra-fast dark pulse generation device and method

Abstract

The invention relates to a tunable ultra-fast dark pulse generation device and method, aiming to solve the problems faced by the traditional dark pulse generation system that the rate is limited by the length of the physical cavity and difficult to tune, the system is large in size, and the operation process is complicated. The device includes a pump unit, a modulation unit, an integrated microcavity unit, a monitoring unit, and an analysis unit; the method includes adjusting the power and wavelength of the narrow-linewidth pump laser emitted by the pump unit, electro-optical modulation of the pump laser through the modulation unit, and integration The microcavity unit receives the narrow-linewidth pump laser modulated by the modulation unit, and the non-degenerate four-wave mixing effect occurs in the cavity to realize frequency expansion, forming a dark pulse and using the analysis unit to measure and analyze the time-domain waveform of the dark pulse. The process of analysis. The invention promotes the development of ultra-fast dark pulse technology and practical applications, and has important research significance and application prospects.

Description

technical field [0001] The invention relates to a dark pulse generation device and method, in particular to a tunable ultra-fast rate dark pulse generation device and method. Background technique [0002] Dark pulse and bright pulse are relative concepts, which refer to the periodic sudden reduction of light intensity under the background of stable continuous light waves. The output of traditional pulsed lasers is almost all bright pulses, that is, periodic sudden rises in light intensity against a background of steady continuous light waves. Since the invention of mode-locked lasers, the theory and implementation methods of bright pulses have been greatly developed, and related technologies have been widely used in optical fiber communication, laser ranging, precision machining, medical cosmetology and other fields. However, when the bright pulse is transmitted in the waveguide, its intensity will gradually decrease during the transmission process, which is extremely sensi...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a tunable ultra-fast rate dark pulse generation device and method, aiming to solve the problems faced by the traditional dark pulse generation system that the rate is limited by the length of the physical cavity, it is difficult to tune, the system is large in size, and the operation process is complicated and stable. low power threshold, high conversion efficiency, fast generation rate, wide tuning range, simple operation process and good stability of dark pulse generation, breaking through existing bottlenecks and capacity limitations, and promoting ultra-fast dark pulse technology and reality The development of applications has important research significance and application prospects

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