Precise laser wavelength measurement method
A technology of precise measurement and laser wavelength, applied in optical radiation measurement, measurement device, measurement optics, etc., to achieve the effect of batch manufacturing, simple measurement method, and wide applicable range of wavelengths
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment Construction
[0024] The implementation of the present invention will be described in detail below in conjunction with the drawings and examples.
[0025] figure 1 The working principle of the device shown: continuous wave laser 1 emits a laser beam, which is focused by a Fresnel zone plate 2 with a large numerical aperture, and then the on-axis light is filtered by a pinhole 3, and the light field passing through the pinhole 3 is detected by a photodetector 4 for intensity detection, the pinhole 3 and the photodetector 4 form a point detector, use the one-dimensional piezoelectric ceramic nanometer displacement table 5 to uniformly step and scan the point detector along the axis, measure the focused axial intensity point spread function, use the centroid The focal length is determined by the method, and the linear measurement curve is obtained by using the linear least square fitting method through the focal length-wavelength correspondence relationship, and the precise measurement of the ...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
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