4results about How to "Wavelength stable" patented technology

The invention provides a cloud computing-based narrow-linewidth 1200 nm semiconductor laser data processing system, and relates to the technical field of data processing, and the system comprises a laser transmitting module which is used for transmitting a narrow-linewidth 1200 nm laser beam by using a semiconductor laser; the data acquisition module is used for being connected with the laser emission module, acquiring state parameters, including power, wavelength, line width and working environment data, of the laser beam in real time, and preprocessing and digitally converting signals output by the sensor; and the cloud processing platform module is used for receiving and processing the data of the data acquisition module, realizing real-time analysis, anomaly detection, trend prediction and remote monitoring of the data, and obtaining an analysis result of a cloud processing platform. According to the invention, remote intelligent monitoring and automatic optimization adjustment of the laser are realized, and the data processing efficiency and the performance stability of the laser are improved.

The invention discloses an FMCW laser radar real-time nonlinear correction device and method based on FPGA control, and the method comprises the steps: taking a DFB laser as a light source, driving the DFB laser by an initial driving current signal, generating an optical signal through a modulation end of the DFB laser, and inputting the optical signal into an FMCW delay heterodyne measurement module; the FMCW delay heterodyne measurement module converts the optical signal into an FMCW beat frequency signal and inputs the FMCW beat frequency signal into the FPGA module; the FPGA module generates a triangular wave driving signal from the FMCW beat frequency signal through a secant iterative learning control algorithm; the laser driving module comprises a current stabilization module, the current stabilization module converts a triangular wave driving signal from the FPGA module into a driving current signal, the driving current signal is input into a DFB laser, and the driving current signal is corrected through a laser radar nonlinear correction loop composed of the DFB laser, the FMCW delay heterodyne measurement module, the FPGA module and the current stabilization module. And the non-linear correction of the current signal is completed.

The present invention provides a cloud computing-based narrow linewidth 1200nm semiconductor laser data processing system, which relates to the field of data processing technology, including: a laser emission module, which uses a semiconductor laser to emit a laser beam with a narrow linewidth of 1200nm; a data acquisition module, which is connected to the laser emission module, and obtains the state parameters of the laser beam in real time, including power, wavelength, linewidth and working environment data, and pre-processes and digitally converts the signal output by the sensor; a cloud processing platform module, which is used to receive and process the data of the data acquisition module, realize real-time analysis, anomaly detection, trend prediction and remote monitoring of the data, and the analysis results of the cloud processing platform. The present invention realizes remote intelligent monitoring and automatic optimization and adjustment of the laser, and improves the data processing efficiency and the stability of the laser performance.

The application relates to the field of optical technology and discloses a device for generating a one-dimensional light spot array and a device for generating a two-dimensional light spot array. The device for generating the one-dimensional light spot array comprises a laser module for generating a plurality of first light beams with different wavelengths, wherein the positions of any two first light beams with different wavelengths have mutual injection phenomena, and the positions of any two first light beams with different wavelengths also generate mutual injection light beams; a transmission grating for synthesizing the plurality of first light beams with different wavelengths into a target light beam and transmitting the mutual injection light beams; an external cavity mirror for reflecting a part of the target light beam and transmitting another part of the target light beam, and for reflecting a part of the mutual injection light beams and transmitting another part of the mutual injection light beams; and a first lens for focusing the transmitted target light beam and the transmitted mutual injection light beam to form discrete light spots arranged in an array along a first direction. The application can generate a one-dimensional light spot array with uniform energy distribution and uniform light spot size, and the cost is low.