Title :
Calibration of optical receivers and modulators using an optical heterodyne technique
Author :
Tan, T.S. ; Jungerman, R.L. ; Elliott, S.S.
Author_Institution :
Hewlett-Packard Co., Santa Rosa, CA, USA
Abstract :
A dual Nd:YAG ring laser heterodyne system for the calibration of optical receivers is presented. This heterodyne system offers more than 50 dB of dynamic range. Calibration of optical phase and amplitude modulators is achieved by downconverting a sideband of the modulated optical carrier to a fixed intermediate frequency with another laser. This technique eliminates the need for a high-speed receiver. This dual YAG system is capable of generating beat frequencies from DC to more than 100 GHz.<>
Keywords :
calibration; demodulation; garnets; neodymium; optical links; optical modulation; optical variables measurement; ring lasers; solid lasers; yttrium compounds; 0 to 100 GHz; YAG:Nd laser; YAl5O12:Nd; amplitude modulators; calibration; downconverting; dual YAG system; dynamic range; fixed IF; fixed intermediate frequency; heterodyne system; modulated optical carrier; optical heterodyne technique; optical modulators; optical receivers; phase modulators; ring laser heterodyne system; Amplitude modulation; Calibration; Dynamic range; Frequency; High speed optical techniques; Optical mixing; Optical modulation; Optical receivers; Phase modulation; Ring lasers;
Conference_Titel :
Microwave Symposium Digest, 1988., IEEE MTT-S International
Conference_Location :
New York, NY, USA
DOI :
10.1109/MWSYM.1988.22215
