Accession Number : ADA117025

Title :   Optical Rotary Joint.

Descriptive Note : Final rept. Sep 81-May 82,


Personal Author(s) : May,R G , Jr

PDF Url : ADA117025

Report Date : 18 Jun 1982

Pagination or Media Count : 49

Abstract : The primary objective of this contract is the design, fabrication, and testing of an optical rotary joint which permits transmission of signals through optical fibers across the interface of two environments rotating relative to each other. Outstanding optical performance is achieved through the use of gradient index lenses to couple radiation across the separation between two fibers. The salient features of this device are bidirectional operation at two wavelengths (850 nm and 1300 nm), low insertion loss, low rotationally induced variation of attenuation, a seven-circuit electrical slip-ring assembly, and rugged construction. The device is designed to facilitate the application of future designs to pressurized, subsea environments. (Author)

Descriptors :   *Fiber optics, *Optical equipment, *Joints, Rotation, Low loss, Frequency, Two way transmission, Ruggedized equipment, Fabrication, Test methods, Pressurization, Underwater

Subject Categories : Fiber Optics and Integrated Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE