Abstract
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 language | English |
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Pages (from-to) | 273-282 |
Number of pages | 10 |
Journal | Proceedings of SPIE - The International Society for Optical Engineering |
Volume | 1366 |
State | Published - 1991 |
Externally published | Yes |
Event | Fiber Optics Reliability: Benign and Adverse Environments IV - San Jose, CA, USA Duration: 18 Sep 1990 → 20 Sep 1990 |