Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Composite spectrum synthesis device

A synthesis device and composite technology, applied in the field of laser technology applications, can solve the problems of high difficulty in the design and manufacture of multi-layer dielectric film gratings, expensive narrow-linewidth lasers, and no commercial products, and achieve high-efficiency and high-quality power synthesis, High diffraction efficiency, good for application and promotion

Inactive Publication Date: 2016-01-13
INST OF APPLIED ELECTRONICS CHINA ACAD OF ENG PHYSICS
View PDF6 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this type of device is that it can only achieve spectral synthesis of polarization-maintaining narrow-linewidth lasers, and the power of such lasers is low, the system is complex, and the cost is high; the second type is based on deflection-independent multilayer dielectric film gratings. Composed of polarization-independent multilayer dielectric film gratings, the principle is similar to the first type of device
This type of device can achieve spectral synthesis of non-polarization-maintaining lasers, but it still requires complex and expensive narrow-linewidth lasers, and the design and preparation of polarization-independent multilayer dielectric film gratings are difficult. Currently, they are only used in very few laboratories. commercial product

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
  • Composite spectrum synthesis device
  • Composite spectrum synthesis device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0017] exist figure 1 Among them, the laser sub-beams (1-1~1-4) are freely polarized, the wavelengths are 1055.3nm, 1057.4nm, 1059.4nm, 1061.2nm, and the spot diameter is 6mm; the beam forming prisms (2-1~2-3) are Rectangular prism coated with high reflection film, the reflectivity of the sub-beam laser (1-1~1-4) is higher than 99.5%; the transmittance of the polarizing beam splitter (3) and the polarizing beam combiner (7) to p light is high More than 97.5%, the reflectivity of s-light is higher than 99%; the reflectivity of mirrors (4-1~4-2) is higher than 99% for s-light; polarization-dependent multilayer dielectric film grating (5-1~5 -4) The average diffraction efficiency of different wavelength laser sub-beams (1-1~1-4) is greater than 95%, and the grating period is 575nm (1740 line pairs / mm); quartz optical discs (6-1~6-2) The transmittance of sub-beam lasers (1-1~1-4) is higher than 99%, and the deflection angle is 90°; the surface error of all optical components is n...

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

Provided in the invention is a technical scheme relating to a composite spectrum synthesis device. According to the technical scheme, the composite spectrum synthesis device comprises a laser sub beam emitter, a beam prism group, a polarizing beam splitter, multi-layer dielectric film gratings, and a polarizing beam combiner. A laser sub beam emitted by the laser sub beam emitter is arranged by the beam prism group and then is split into P light and S light by the polarizing beam splitter; spectrum synthesis is carried out on the P light and the S light respectively by the multi-layer dielectric film gratings arranged at light paths and then the P light and the S light are gathered at the polarizing beam combiner for outputting. According to the device, the two groups of multi-layer dielectric film grating spectrum synthesis units are used for realizing spectrum synthesis of the p polarizing light and s polarizing light and then the polarizing beam combiner is used for completing composite power synthesis, thereby realizing high-brightness laser outputting and overcoming defects that the high light source requirement can not be met and the grating can not be obtained easily according to the existing spectrum synthesis apparatus. Therefore, practicability of the spectrum synthesis device is improved and the manufacturing cost is lowered.

Description

technical field [0001] The invention relates to the application field of laser technology, in particular to a composite spectrum synthesis device. Background technique [0002] The use of spectral synthesis technology can combine multiple laser beams with different wavelengths into one beam, while increasing the total output power while maintaining better beam quality, thereby improving the brightness of the laser. At present, there are two types of known spectral synthesis devices: the first type is based on polarization-dependent multilayer dielectric film gratings, which are composed of polarization-maintaining lasers and polarization-dependent multilayer dielectric film gratings. Multiple laser beams are incident on the grating at different angles. High dispersion capability combines multiple laser beams into one. The disadvantage of this type of device is that it can only achieve spectral synthesis of polarization-maintaining narrow-linewidth lasers, and the power of s...

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
Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/13
Inventor 张凯唐淳颜宏田飞李建民王树峰谢庚辰马毅关有光雒仲祥高清松陈黎罗佳卢飞廖原陈天江王锋何丽马立斌
Owner INST OF APPLIED ELECTRONICS CHINA ACAD OF ENG PHYSICS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com