Comparative performance of HgCdTe photodiodes for heterodyne application
Abstract
The use of photodiodes as optical photomixers in laser heterodyne spectroscopy systems is discussed. The quantum efficiency of the photodiodes is reported with the emphasis on its effect on the system's signal to noise ratio. The measurement techniques used to determine photodiode dc and heterodyne quantum efficiencies are described. The theory behind the measurements as well as actual measurements data for two HgCdTe photodiodes are presented.
- Publication:
-
Heterodyne Systems and Technolology
- Pub Date:
- August 1980
- Bibcode:
- 1980hst..rept..297K
- Keywords:
-
- Cadmium;
- Mercury (Metal);
- Optical Heterodyning;
- Photodiodes;
- Tellurium;
- Frequency Response;
- High Resolution;
- Semiconductor Devices;
- Signal To Noise Ratios;
- Lasers and Masers