Device capable of wave shaping and wavelength transformation to periodic optical pulse

Abstract

The invention relates to a device capable of wave shaping and wavelength transformation to a periodic optical pulse, which comprises a short-pulse laser, a semiconductor optical amplifier, an optical frequency spectrum component signal selector and an optical feedback circuit, wherein the short-pulse laser is connected to the semiconductor optical amplifier; the semiconductor optical amplifier is connected to the optical frequency spectrum component signal selector; and the optical frequency spectrum component signal selector is connected to the semiconductor optical amplifier through the optical feedback circuit. The invention can flexibly, widely, and continuously regulate the center wavelength of an output optical pulse signal according to the actual need, can regulate the output pulse width of the optical pulse signal, and can shape the wave form of the optical pulse signal.

Description

technical field [0001] The invention relates to the technical field of optical communication, in particular to a device capable of shaping periodic optical pulse waveforms and converting wavelengths. Background technique [0002] Ultrashort pulse laser with tunable wavelength is a key technology for realizing ultra-high-speed, large-capacity all-optical communication systems and networks. It has very important application value in wavelength division multiplexing (WDM), optical time division multiplexing (OTDM), WDM / OTDM hybrid multiplexing system and ultra-high-speed all-optical signal processing. At present, the ultrashort pulse lasers used in the field of high-speed optical communication or optical signal processing can be roughly divided into two types according to their structures and materials: one is a fiber laser based on a fiber structure doped with rare earth materials; the other is a semiconductor laser. Although the pulse sequence output by the mode-locked fiber...

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Problems solved by technology

[0005] However, the current pulse laser generation technology cannot meet the requirements of various optical pulse waveforms, optical signal transmission rates and transmission formats, thus limiting the practical application range of such ultrashort pulse lasers, especially in the rapidly developing high-speed and large-capacity optical In the field of communication, it is necessary to provide a device for converting the waveform and wavelength of the optical signal for the periodic optical pulse sequence output by the pulsed laser

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