Unlock instant, AI-driven research and patent intelligence for your innovation.

Pulsed light generation device and method

A technology for generating devices and pulsed light, which is applied in the laser field, can solve the problems of difficult operation of amplitude and phase modulation, achieve automatic optimization and high-quality output, and simplify the process of amplitude and phase modulation

Inactive Publication Date: 2018-07-06
CHINA MOBILE COMM LTD RES INST +1
View PDF6 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a pulsed light generating device and method to solve the problem that the amplitude and phase modulation operation is difficult in the existing process of optimizing the pulsed light through nonlinear spectrum broadening

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Pulsed light generation device and method
  • Pulsed light generation device and method
  • Pulsed light generation device and method

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0048] see figure 1 As shown, the first embodiment of the present invention provides a pulsed light generating device, including a pulsed light generating unit 11 to be modulated, a spatial light modulator 12 and a self-feedback control unit 13, which are described in detail as follows.

[0049]Wherein, the pulsed light to be modulated generating unit 11 is used to generate the pulsed light to be modulated with nonlinear spectrum broadening.

[0050] The input end of the spatial light modulator 12 is connected to the output end of the pulsed light generation unit 11 to be modulated, and the spatial light modulator 12 has a variable amplitude modulation function and a phase modulation function, which are used to, according to the amplitude modulation function, The spectral intensity of the pulsed light to be modulated is modulated, and the time-domain intensity of the pulsed light to be modulated is modulated according to the phase modulation function, and the modulated pulsed ...

no. 2 example

[0082] see Figure 4 As shown, the second embodiment of the present invention provides a pulsed light modulation method, including the following steps:

[0083] Step 401: Generate pulsed light to be modulated with nonlinear spectrum broadening;

[0084] Step 402: Using the spatial light modulator to modulate the spectral intensity of the pulsed light to be modulated according to the amplitude modulation function, and modulate the time-domain intensity of the pulsed light to be modulated according to the phase modulation function, and output the modulated pulsed light;

[0085] Step 403: According to the target pulsed light and the modulated pulsed light, reset the amplitude modulation function and the phase modulation function, so that the modulated pulsed light output by the spatial light modulator is close to the target pulsed light.

[0086] In a specific embodiment of the present invention, the step of generating the pulsed light to be modulated with nonlinear spectrum br...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a pulsed light generation device and method. The pulsed light generation device comprises a to-be-modulated pulsed light generation unit, a spatial light modulator and a self-feedback control unit. The to-be-modulated pulsed light generation unit is used for generating to-be-modulated pulsed light which is non-linearly broadened; the spatial light modulator is used for modulating the spectral intensity of to-be-modulated pulsed light according to an amplitude modulation function, modulating the time domain intensity of the to-be-modulated pulsed light according to a phase modulation function and outputting modulated pulsed light; an input end and an output end of the self-feedback control unit are connected with the spatial light modulator, and the self-feedback control unit is used for resetting the amplitude modulation function and the phase modulation function according to target pulsed light and the modulated pulsed light. According to the scheme, based on self-feedback and the target pulsed light, the pulsed light which is non-linearly broadened is subjected to amplitude and phase modulation, the modulated pulsed light is infinitely close to the target pulsed light, the process of the amplitude and phase modulation process is simplified, and automatic optimization and high-quality output of pulse waveforms are achieved.

Description

technical field [0001] The invention relates to the field of laser technology, in particular to a device and method for generating pulsed light. Background technique [0002] The ultrashort pulse light generating device is the basis of an Optical Time-Division Multiplexing (OTDM) system, and its performance determines the transmission rate and stability of the OTDM system. At present, ultrashort pulse light generation devices mainly include mode-locked lasers and ultrashort pulse light generation devices based on DC optical external modulation. [0003] Among them, the ultrashort pulse light generation device based on DC optical external modulation is to inject the DC light emitted by the laser into the modulator (for example, 3 phase modulators and 1 Mach-Zehnder intensity modulator), after being modulated by the modulator, directly Generate ultrashort pulses of light. In order to meet the requirements of higher rate OTDM systems for pulsed light, an ultrashort pulsed lig...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G02F1/35G02F1/39H01S3/00H04B10/508
CPCG02F1/35G02F1/39H01S3/0057H04B10/508
Inventor 王东李允博王磊李晗
Owner CHINA MOBILE COMM LTD RES INST