A fiber optic delay line system consisting of 10 Corning multimode low loss optical fibers with 60 ns time delay increments has been designed and tested for potential application to a space object imaging system (SOI)*. A brief overview of the optical imaging system application is given followed by the details of delay line design and tests. Both pulsed ruby laser and cw helium neon measurement techniques are discussed and the results are presented. A pseudo attenuation phenomenon observed during the pulsed laser tests and attributed to cladding mode propagation is reported along with techniques for cladding mode suppression. Possible alternative applications of this system are also given.
M. E. Pedinoff,
"Fiber Optic Delay Lines For Use In Time Delay Multiplexing Of Optical Images", Proc. SPIE 0063, Guided Optical Communications, (6 November 1975); doi: 10.1117/12.954487; https://doi.org/10.1117/12.954487