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

Frequency-doubling laser with wide temperature working range

A frequency-doubled laser and wide temperature technology, applied in the field of frequency-doubled lasers, can solve the problems of complex laser structure, increased cost, and complicated gluing, and achieve the effect of small size, low cost, and easy adjustment

Inactive Publication Date: 2011-12-14
QINGDAO LASENCE
View PDF3 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above two technologies for obtaining frequency-doubling light output in a wide temperature range, adding optical crystals make the bonding more complicated and increase the cost
However, the patent number (ZL 200620070891.9) adopts multiple LD pump sources, and uses different working ranges to correspond to the characteristics that one or several LD ​​wavelengths fall within the suitable pump wavelength range, so as to achieve no need for temperature control or lower power consumption. Temperature control, so as to achieve the purpose of using semiconductor pump lasers in a wide temperature range. This solution uses multiple LDs to increase costs and make the overall structure of the laser very complicated.

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
  • Frequency-doubling laser with wide temperature working range

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] According to the manual attached figure 1 Make a frequency-doubled green laser with a wide temperature bandwidth (take Nd-doped disordered laser crystal as an example), including 1 pump source, 2 focusing systems, 3 input cavity mirrors, 4 laser crystals, 5 times Frequency crystal, 6 output cavity mirror. The output center wavelength of the pump source LD array is 808nm, and the coating conditions of the laser resonator are as follows: the input cavity mirror 3 is coated with an anti-reflection coating (AR808nm) for the pump light and a high-reflection coating (HR1 .06μm&0.53μm); the output cavity mirror 6 is coated with a high reflection film (HR1.06μm) for the fundamental frequency light and a high transmittance film (HT0.53μm) for the frequency doubled light; the laser crystal 4 and the frequency doubler crystal 5 are both coated with a pair Anti-reflection coating for fundamental frequency light and double frequency light. Among them, the frequency doubling crysta...

Embodiment 2

[0023] According to the manual attached figure 1 To make a high-efficiency frequency-doubled green laser with a wide temperature bandwidth, the difference from the implementation example 1 is that a disordered laser crystal doped with Yb ions is used, and the input cavity mirror 3 is plated with AR970nm and HR1.04μm&0.52μm; the output The cavity mirror 6 is plated with HR1.04μm and HT0.52μm.

Embodiment 3

[0025] According to the manual attached figure 1 To make a high-efficiency frequency-doubled red laser with a wide temperature bandwidth, the difference from the implementation example 1 is: the input cavity mirror 3 is coated with AR808nm and HR1.33μm&0.67μm; the output cavity mirror 6 is coated with HR1.33μm and HT0.67μm .

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

PropertyMeasurementUnit
Absorption bandwidthaaaaaaaaaa
Login to View More

Abstract

The invention relates to a high-efficiency LD (Laser Diode) pumping frequency-doubling laser with wide temperature bandwidth. The high-efficiency LED pumping frequency-doubling laser comprises an LD pumping source, a coupling system and a laser resonant cavity; the laser resonant cavity comprises an input cavity lens, a laser crystal with wider absorption bandwidth, a frequency-doubling crystal with wider temperature receiving bandwidth, and an output cavity lens. Through the technical scheme above, the output of frequency-doubling laser, containing red light, green light or blue light, with a wide temperature band can be respectively realized by plating a specified film system on the laser resonant cavity lens and cutting the frequency-doubling crystal according to a relative phase matching angle.

Description

technical field [0001] The invention relates to the technical field of all solid-state lasers, in particular to an LD-pumped frequency-doubled laser with a wide temperature bandwidth. Background technique [0002] Visible wavelength lasers are widely used in full-color display, image processing, laser projection, laser printing, optical fiber communication, medical treatment and scientific research. These applications require the laser to work properly over a wide temperature range. At present, the method of obtaining visible light laser can use nonlinear optical crystals such as KTP and LBO to double the frequency of lasers in the 0.9μm, 1.06μm and 1.3μm bands generated by Nd3+ ion laser crystals. . Since the temperature acceptance bandwidth of nonlinear crystals such as KTP and LBO is very narrow (KTP: 26.25K*cm), in the intracavity frequency doubling laser, if there is no temperature control, its output power often changes sharply with temperature, and due to thermal ef...

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): H01S3/16H01S3/109H01S3/06
Inventor 邱港韩学坤张百涛
Owner QINGDAO LASENCE
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