An optical heterodyne mixer providing image-frequency rejection
1986; Institute of Electrical and Electronics Engineers; Volume: 4; Issue: 11 Linguagem: Inglês
10.1109/jlt.1986.1074675
ISSN1558-2213
Autores Tópico(s)Semiconductor Lasers and Optical Devices
ResumoThis paper describes an optical heterodyne mixer which detects a desired signal at frequency f_{LO} \pm f_{IF} while rejecting interference from any signal at the image frequency f_{LO} \pm f_{IF} . Implementation of the mixer is relatively simple. Its performance is insensitive to fluctuations in the optical dimensions of the circuit. This mixer is particularly attractive for communication systems using wavelength division multiplex techniques.
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