Adjustable frequency difference two-frequency laser back-feed nano measuring ruler for frequency stabilizing
A dual-frequency laser and laser technology, applied in the field of laser measurement, can solve problems such as the inability to accurately determine the displacement direction of the measured object, the slow progress in the research of feedback displacement measurement technology, and the inability to break through the diffraction-limited light wavelength.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment Construction
[0052] Example 1 structure of the present invention as shown in Figure 1, 2 is the main light output mirror of he-neon laser, its reflectivity is 99.5%, reflective film is coated on the right surface of this plane mirror, and anti-reflection coating is coated on the left surface of this plane mirror , the laser gain tube 3 is filled with a mixed gas of He and Ne. The left surface of the tail light output mirror 7 is plated with an anti-reflection film, which is concave, and the right surface is plated with a reflective film, which is a plane with a reflectivity of about 99.8%. 2, 3 and 7 together form a full-cavity He-Ne laser with a cavity length of 80mm to 120mm. After an external force 13 is applied to the tail light output mirror 7, due to the stress birefringence effect, the laser outputs two beams of orthogonally polarized light: parallel light and vertical light. The frequency difference between two beams of orthogonally polarized light can be adjusted by controlling t...
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