Application
Laser index measurement, laser index measurement, LiDAR, gas analysis, etc
LASER INDEX MEASUREMENT
LIDAR(Stay tuned)
FIBER OPTIC COMMUNICATION AND SENSING
GAS ANALYSIS
MACHINE VISION
LASER INDEX MEASUREMENT
We have summarized eight indicators from the output light power, wavelength, beam quality, polarization, and other aspects of the laser to comprehensively examine its performance.
LIDAR
FMCW technology ranging technology:
FMCW， That is, frequency modulated continuous wave. FMCW technology and
pulse radar technology are two technologies used in high-precision radar ranging.
The basic principle is that the emitted wave is a high-frequency continuous wave,
and its frequency changes over time according to the triangular wave pattern.
FIBER OPTIC COMMUNICATION AND SENSING
The distributed acoustic sensing technology (DAS) used in our DAS fiber optic sensing system
- DAS technology is an advanced sensing technology that utilizes the backward Rayleigh scattering of laser in optical fibers to obtain physical changes in the environment along the route.
- It has advantages such as strong environmental adaptability, large sensing range, synchronization of light speed between channels, and high spatiotemporal resolution accuracy.
gas analysis
The cavity decay spectroscopy (CRDS) technology uses a pair of high reflectivity mirrors with a reflectivity of over 99.99% to form an optical resonant cavity, greatly improving the absorption optical path of the gas to be measured. The concentration of the gas to be measured in the cavity is detected based on the decay time of the light inside the cavity.
The theoretical basis of TDLAS technology is the Beer Lambert law. When a laser beam passes through the measured gas, when the wavelength of the laser is at a certain absorption spectral line position of the measured gas, the gas molecules will absorb photons and jump to the high-energy level, which is manifested as the gas absorbing the laser, causing the laser to attenuate in power.
machine vision
- Our infrared and ultraviolet cameras are widely used in security
- Semiconductor testing
- Spectral analysis and other fields
