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

A dual-wavelength mid-infrared laser based on ultra-low temperature particle population control mechanism

A particle number and laser technology, applied in the laser field, can solve the problems of large difference in laser wavelength, inability to output synchronous power of dual wavelengths, low conversion efficiency of pump light, etc.

Active Publication Date: 2021-06-29
HEILONGJIANG INST OF TECH
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the existing nonlinear frequency conversion generally has a low conversion efficiency for the pump light, cannot realize the simultaneous output of equal power of dual wavelengths, and the output of the two laser wavelengths has a large difference, and provides a A dual-wavelength mid-infrared laser based on ultra-low temperature particle population control mechanism

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
  • A dual-wavelength mid-infrared laser based on ultra-low temperature particle population control mechanism
  • A dual-wavelength mid-infrared laser based on ultra-low temperature particle population control mechanism
  • A dual-wavelength mid-infrared laser based on ultra-low temperature particle population control mechanism

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0018] Specific implementation mode one: the following combination figure 1 Explain, a dual-wavelength mid-infrared laser based on the ultra-low temperature particle number control mechanism, which consists of a cryostat 3, a laser 4, a first lens 5, a second lens 6, a laser input mirror 7, a laser output mirror 8, and a laser crystal 9 , The first thermostat window mirror 10-1 and the second thermostat window mirror 10-2;

[0019] Wherein the laser input mirror 7 and the laser output mirror 8 form a flat-concave laser resonator, and the laser input mirror 7 is coated with an anti-reflection film for the 800nm ​​wave band and a total reflection film for the 1800nm-2500nm wave band. The laser output mirror 8 is coated with a partial reflective film with a transmittance of 5% for the 1800nm-2500nm band;

[0020] Described laser crystal 9 is Tm, Ho:YAP crystal, and is installed in the red copper heat sink after being wrapped by indium foil, and laser crystal 9 and red copper hea...

specific Embodiment approach 2

[0031] Embodiment 2: This embodiment differs from Embodiment 1 in that: the core diameter of the output fiber is 400 μm; the numerical aperture of the output fiber is 0.2. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0032] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that: the first lens 5 and the second lens 6 are both plano-convex lenses with a focal length of 70 mm. Others are the same as in the first or second embodiment.

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
diameteraaaaaaaaaa
Login to View More

Abstract

A dual-wavelength mid-infrared laser based on an ultra-low temperature particle number control mechanism, which belongs to the field of laser technology, solves the problem that the existing nonlinear frequency conversion generally has low conversion efficiency for pump light, and cannot achieve dual-wavelength simultaneous output of equal power, and The problem that the output two laser wavelength values ​​are quite different. A dual-wavelength mid-infrared laser based on an ultra-low temperature particle number regulation mechanism, which consists of a cryostat, a laser, a first lens, a second lens, a laser input mirror, a laser output mirror, a laser crystal, a first thermostat window mirror and a second Composed of two thermostat window mirrors, the laser crystal is Tm, Ho:YAP crystal, and is wrapped by indium foil and installed in a copper heat sink, and the laser crystal and copper heat sink are placed in the bottom vacuum chamber of the cryostat, so that The laser crystal is in a vacuum and low temperature environment.

Description

technical field [0001] The invention belongs to the field of laser technology. Background technique [0002] Dual-wavelength lasers can simultaneously output lasers of two different wavelengths, and have important application values ​​in the fields of trace gas detection, molecular biology, display technology, medical treatment and remote sensing. [0003] Most of the current dual-wavelength lasers are realized by nonlinear frequency conversion methods such as frequency doubling, sum frequency, and Raman frequency shift. The conversion efficiency of nonlinear frequency conversion for pump light is generally low. Based on different nonlinear crystal materials, it is generally in the range of 5% to 18%. After wavelength conversion, the aberration between laser power and pump light is large, which is not conducive to the realization of dual wavelengths. The equal power synchronous output. Moreover, the difference between the two laser wavelengths output after nonlinear freque...

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 Patents(China)
IPC IPC(8): H01S3/08H01S3/102H01S3/16
CPCH01S3/0809H01S3/1028H01S3/161H01S3/1616H01S3/1638
Inventor 叶光超王巍周龙谢文强
Owner HEILONGJIANG INST OF TECH