Multi-frequency synchronization phase laser ranging device and method based on dual-acousto-optic shift frequency
A technology of acousto-optic frequency shifting and synchronizing phase, applied in the field of laser measurement, it can solve the problem of lack of multiple measuring rulers, and achieve the effect of eliminating drift and jitter and improving stability.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
specific Embodiment approach 1
[0024] Specific implementation mode one: combine figure 1 , figure 2 , image 3 and Figure 4 Description of this embodiment, based on dual acousto-optic frequency shifting multi-frequency synchronous phase laser ranging device, it consists of dual longitudinal mode frequency stabilized He-Ne laser 1, multi-scale generation unit 2, beam expanding collimator mirror group 3, measuring The optical path and circuit unit 4 and the control box unit 5 are composed. The laser output from the dual longitudinal mode frequency-stabilized He-Ne laser 1 is output to the input end of the multi-scale generating unit 2, and the laser output from the multi-scale generating unit 2 passes through the beam expander The straight mirror group 3 is connected to the input end of the measurement optical path and the circuit unit 4, and the phase information output end of the measurement optical path and the circuit unit 4 is connected to the phase information input end of the control box unit 5, a...
specific Embodiment approach 2
[0028] Embodiment 2: Different from Embodiment 1, the crystal oscillator 35 of this embodiment adopts a temperature-compensated crystal oscillator, and the short-term frequency stability is better than 0.01 ppm. Other components and connections are the same as Embodiment 1.
specific Embodiment approach 3
[0029] Specific implementation mode three: combination figure 1 , figure 2 , image 3 and Figure 4 To illustrate this embodiment, the multi-frequency synchronous phase laser ranging device based on dual acousto-optic frequency shifting described in the first embodiment is used to realize the multi-frequency synchronous phase laser ranging method based on dual acousto-optic frequency shifting. It includes the following specific steps:
[0030] Step 1. Turn on the dual-longitudinal-mode frequency-stabilized He-Ne laser 1. After preheating and frequency stabilization, the dual-longitudinal-mode frequency-stabilized laser 1 outputs dual-frequency lasers with frequencies f and f′ respectively. The dual-frequency laser passes through The No. 1 beam splitter 6 is divided into two beams, one of which is emitted to the No. 1 acousto-optic frequency shifter 9, and the other beam is divided into two beams of laser beams whose polarization directions are perpendicular to each other thr...
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