New measurement techniques for modal power distribution in fibers

M. A. Golub, I. N. Sisakjan, V. A. Soifer, G. V. Uvarov

Research output: Contribution to journalConference articlepeer-review


It is suggested to measure modal power distribution in fiber with the aid of computer generated optical elements, called modans. Modans are matched to orthogonal modes and cause transformation of modal power distribution to intensity distribution in a focal plane. The theoretical calculation were carried out of modan's complex transfer function and the particular method is suggested of its coding into phase - only function. Relevant optical techniques were provided, the experimental results are reported for the specific case of Gauss-Laguerre modes in graded-index fibers. The methods, worked out, are shown to be applicable in fiber optic sensors.

Original languageEnglish
Pages (from-to)273-282
Number of pages10
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - 1991
Externally publishedYes
EventFiber Optics Reliability: Benign and Adverse Environments IV - San Jose, CA, USA
Duration: 18 Sep 199020 Sep 1990


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