The invention provides a laser power meter. The laser power meter comprises a laser converter, an infrared receiver, an infrared detector and a power tester, wherein the laser converter is used for absorbing incidence laser, and converting the incidence laser into infrared rays to be emitted outwards; the infrared receiver is used for receiving the infrared rays and converging the infrared rays; the infrared detector is used for receiving the converged infrared rays and converting the converged infrared rays into an electric signal; the power tester is connected with the infrared detector and is used for receiving the electric signal, and calculating to obtain a power value of the incidence laser according to the electric signal. The laser power meter provided by the invention has the advantages of wide spectrum covering range and wide measurable power range, and also has the advantage of short responding time.

Laser power meter

The invention relates to a laser spot power density testing device which comprises a measurement probe, a display terminal, a central control module in the display terminal, as well as a key-press module and a display module which are connected with and embedded on the outer wall of a shell of the display terminal. The device is characterized in that the measurement probe comprises a shell, a base arranged at the bottom of the shell, as well as a thermoelectric conversion module and a thermoelectric couple module which are arranged in the shell. The device has simple structure and low cost, directly and automatically displays the power density of laser spots according to voltage change of a thermoelectric coupler through calculation of a singlechip, is convenient to use and carry, and has the advantages of no wavelength selection, flat spectrum response curve and high accuracy, thereby bringing convenience for clinical application.

Laser spot power density testing device

The invention discloses an apparatus and method for measuring the laser temperature of a Raman spectrometer. With the apparatus and method adopted, the temperature of laser arriving at the surface ofa sample can be detected quickly. The apparatus and method are suitable for the testing platform of the Raman spectrometer and laser intensity testing. The device provided by the invention is simple in structure, does not generate faults, is convenient to operate, just slightly influences test results. According to the apparatus and method of the invention, on the basis of the combination of a thermocouple and the Raman spectrometer, real-time temperature recording in a laser irradiation process can be realized, and researchers can be better facilitated to test laser temperature under relevantexperimental parameters before using the Raman spectrometer.

Apparatus and method for measuring laser temperature of Raman spectrometer

An ultraviolet reinforcing type electronic calibrating thermal electron-releasing radiometer

The utility model relates to a novel laser power meter responded to all wavelengths Graphite emulsion is coated on an absorption surface facing incident light on an anode aluminum oxide sheet The back side of a light surface is plated with fifteen pairs of thermoelements by a vacuum evaporation plating method and is connected with an amplifying circuit The utility model can be made into a laser power meter for measuring the grade of mill watt to the grade of scores of watts The power response time of the power meter is less than 1s, and the sensitivity is above 18 mv/w, so the power meter can be used for measuring the laser power from ultraviolet to an infrared spectrum region and can also be used for supervising the fast change of power

Li Qiankang

Papers

Laser powermeter responded to all wavelengths