Accession Number : ADA327835

Title :   Reduced Carrier, High Dynamic Range I/O Modulators.

Descriptive Note : Final technical rept. Aug 95-Dec 96,

Corporate Author : UNIPHASE TELECOMMUNICATIONS PRODUCTS BLOOMFIELD CT

Personal Author(s) : McBrien, Gregory J. ; Drake, Glen W.

PDF Url : ADA327835

Report Date : JUN 1997

Pagination or Media Count : 53

Abstract : This report provides details on the fabrication and characterization of reduced carrier electrooptic modulators for potential application in high performance RF links. The report details how the optical splitting ratio was determined and the results of verification testing of reduced carrier links to prevent overload of optical detectors. The result was a slightly improved third order distortion product. This improvement could range up to 5 dB depending upon the power handling capability of the photodetector and the use and characteristics of an optical amplifier in front of the detector. The reduced optical carrier power results in an apparent increased RF modulation index (greater depth of modulation) of the optical carrier. An optical amplifier then permits higher overall optical power on the photodetector, which, in turn, improves the dynamic range of the link.

Descriptors :   *ELECTROOPTICS, *OPTICAL PROCESSING, FREQUENCY MODULATION, INPUT OUTPUT PROCESSING, PHOTODETECTORS, OPTICAL DETECTORS, DYNAMIC RANGE, LIGHT MODULATORS, OPTICAL FILTERS, FREQUENCY MODULATORS, MICROWAVE AMPLIFIERS.

Subject Categories : Electrooptical and Optoelectronic Devices
      Optical Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE