LEOI-58 is designed to measure the output power of a semiconductor laser as well as the driving voltage and current of the laser, so that students can understand the working characteristics of a semiconductor laser under CW output mode. A CCD array spectrometer (optical multi-channel analyzer) is used to monitor the fluorescence spectrum of the semiconductor laser when the laser injection current is lower than the threshold current, and the subsequent spectral variation of the laser under laser oscillation condition when the injection current is greater than the threshold current.
Using this system, the following measurements can be conducted with semiconductor lasers:
1.Output power characterization of semiconductor lasers
2.Divergent angle measurement of semiconductor lasers
3.Degree of polarization measurement of semiconductor lasers
4.Spectral characterization of semiconductor lasers