Modulation method for measurement of parameters of photodetectors at the wavelength of 10.6 mm for heterodyne applications
An experimental system is designed for measurement of heterodyne characteristics of the HgCdTe photodiodes with its preamplifier at the wavelength of 10.6 mm. A method suggested for measurement of parameters utilizes the intensity-modulated laser radiation. The noise equivalent power and wideband of high-speed photodetectors have been measured.