Ultra-short light pulse generation device
A technology for generating equipment and optical pulses, which is applied in the field of communication, and can solve problems such as the inability to generate stable, high-quality, chirp-free ultrashort optical pulses
Active Publication Date: 2018-07-03
CHINA MOBILE COMM LTD RES INST +1
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[0007] The present invention provides an ultrashort optical pulse generating device, which is used to solve the problem that the ultrashort pulse generation scheme in the prior art cannot generate stable, high-quality, chirp-free ultrashort optical pulses
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[0040] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0041] The embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0042] Such as figure 1 As shown, an ultrashort optical pulse generation device according to an embodiment of the present invention includes a laser generation module 100, a phase modulation module 101, a first dispersion medium 102, an intensity modulator 103, a compensation module 104, and a radio ...
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The invention discloses an ultra-short light pulse generation device, which is used for solving the problem that an ultra-short light pulse generating scheme cannot generate a stable high-quality chirp-free ultra-short light pulse in the prior art. An embodiment of the invention provides the ultra-short light pulse generation device. The device comprises a laser generating module, a phase modulation module, a first dispersive medium, an intensity modulator, a compensation module and a radio frequency power module. The laser generating module, the phase modulation module, the first dispersive medium, the intensity modulator and the compensation module are connected in sequence; and the radio frequency power module provides a radio frequency signal for the phase modulation module and the intensity modulator respectively. The first dispersive medium can stretch a chirp area in the optical signal processed by the phase modulation module, and cooperate with the intensity modulator driven bythe radio frequency power module, so that nonlinear chirp can be removed effectively; the compensation module can remove linear chirp; and finally, a stable chirp-free ultra-short light pulse can begenerated.
Description
technical field [0001] The invention relates to the technical field of communication, in particular to an ultrashort optical pulse generating device. Background technique [0002] In optics, ultrashort pulse refers to an electromagnetic pulse whose duration is on the order of femtosecond (10-15th power second) or shorter. It has a wide range of applications in the field of biological therapy, communication technology, and microstructure processing. Currently, mode-locked lasers can be used to generate ultrashort pulsed light, and ultrashort pulsed light can also be generated by external modulation based on DC light. Some researchers have also proposed to generate seed light pulses by mode-locked lasers or DC optical external modulation, and then inject them into a nonlinear compression stage based on the high nonlinear effect of optical fibers to generate high repetition rate near-Gaussian ultrashort optical pulses. [0003] There are certain defects in the current generat...
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IPC IPC(8): H01S3/00H01S3/10
Inventor 王东李允博王磊李晗
Owner CHINA MOBILE COMM LTD RES INST