Low-coherence interferometry with synthesis of coherence function

1999; Optica Publishing Group; Volume: 38; Issue: 28 Linguagem: Inglês

10.1364/ao.38.005974

ISSN

0003-6935

Autores

Y. Teramura, Keiichi Suzuki, Masayuki Suzuki, Fumihiko Kannari,

Tópico(s)

Glaucoma and retinal disorders

Resumo

Synthesis of a coherence function by manipulation of the spectral phase of low-coherent light with a segmented liquid-crystal phase modulator and its application in a low-coherence interferometry are described. Effects of space-time coupling caused at diffractive gratings and second-order dispersion at the spatial light modulator on the coherence function synthesis are theoretically and experimentally verified. Various coherence functions can be shaped with phase-only masks designed by simulated annealing optimization algorithm. We utilized this technique for a novel optical low-coherence reflectometry without any mechanical movement for scanning optical delay.

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