RESEARCH AND DEVELOPMENT OF AN ELECTRO-OPTIC WIDEBAND SPECTRUM ANALYZER.
Abstract
Observations on the detection of audio frequency phase modulated light showed that the essential features for a microwave spectrum analyzer exist in the experimental arrangement. From the measurements which were done near the noise level, it is estimated that the useful light intensity at the small area photodetector was down to about 1/100 of 1 mW available from the He-Ne laser. Attempts to detect phase modulation of light at 10 GHz were complicated by the RF leakage from the local modulator source prohibiting the positive detection at microwave rates. Broad band RF matching of KDP with its dielectric constant of 21 was best handled by considering the problem in terms of lumped susceptance matching. Techniques were worked out for the environmental protection of hygroscopic electrooptic crystals. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 15, 1966
- Accession Number
- AD0482572