Optical pulse synchronizing signal source based on waveguide coupling microdisk photon molecular lasers

Abstract

The invention discloses an optical pulse synchronizing signal source based on waveguide coupling microdisk photon molecular lasers. The optical pulse synchronizing signal source comprises a substrate and an upper structure. The upper structure is formed on the substrate and comprises the microdisk photon molecular lasers with electric injection or optical injection and two strip-shaped output waveguides, and the microdisk photon molecular lasers are manufactured in the middle on the substrate. The two strip-shaped output waveguides are manufactured on the substrate and are laterally coupled or perpendicularly coupled with the microdisk photon molecular lasers. Ports are formed in the same sides of the two strip-shaped output waveguides respectively so as to output beat frequency optical pulse synchronizing signals of the microdisk photon molecular lasers. According to the optical pulse synchronizing signal source, when electric signals or optical signals are injected into the two microdisk lasers, two paths of optical pulse strings which are identical in frequency and fixed in pulse width and complement each other can be output, and the on-chip optical pulse synchronizing signal source with pulse generating frequency on a microwave band is achieved.

Description

technical field [0001] The present invention relates to the fields of optical communication, semiconductor optoelectronic integration and microwave photonics, and more specifically, to an optical pulse synchronization signal source based on a waveguide-coupled microdisk photonic molecular laser. When the microdisk photonic molecular laser is used, it can output two optical pulse trains with the same frequency, fixed pulse width and complementary phase through the lateral coupling or vertical coupling of two strip waveguides, and the frequency of the generated optical pulses is in the microwave band. Background technique [0002] In the radar transmission system, pulse synchronization signals are required between the amplification chains of all levels and the modulation switches in the amplification chains of all levels. Strict timing must be ensured between the pulse synchronization signals to make the transmitter work normally. At the same time, the radar transmitter and Sy...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of how to generate two or more pulses on the chip to generate an optical pulse synchronization signal whose frequency is in the microwave band, and propose an optical pulse synchronizer signal source based on a waveguide-coupled microdisk photonic molecular laser, thereby realizing pulse An on-chip optical pulse synchronization signal source that generates frequencies in the microwave band

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