Analýza koherence světla na výstupu vláknového vlnovodu v prostorově-frekvenční doméně

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47813059%3A19240%2F95%3A%230001988" target="_blank" >RIV/47813059:19240/95:#0001988 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

COHERENCE OF LIGHT AT THE OUTPUT OF A FIBER WAVE-GUIDE ANALYZED IN THE SPACE-FREQUENCY DOMAIN

Popis výsledku v původním jazyce

Coherence of light in the space-frequency domain is investigated at the exit face of a weakly guiding fibre waveguide a's well as in its far zone by using the coherent mode representation. Two limiting cases of fibre waveguide excitation by cross-spectrally pure, quasimonochromatic, spatially incoherent and coherent sources are considered in the evaluation of spectral changes occurring in the free space propagation of light in the paraxial regime from the exit face of the fibre waveguide to its far zone. In particular, the blue and the red shifts as well as the spectra modifications in the far zone of two-mode, weakly guiding, step-index fibre waveguide are presented for both spatially incoherent and coherent exciting sources. A frequency dependence ofthe modes is also considered which leads to a substantial reduction in spectral shifts. Moreover, it is revealed that a variable spectral modulation is present in the case of the fibre waveguide excitation by a spatially coherent source.

Název v anglickém jazyce

COHERENCE OF LIGHT AT THE OUTPUT OF A FIBER WAVE-GUIDE ANALYZED IN THE SPACE-FREQUENCY DOMAIN

Popis výsledku anglicky

Coherence of light in the space-frequency domain is investigated at the exit face of a weakly guiding fibre waveguide a's well as in its far zone by using the coherent mode representation. Two limiting cases of fibre waveguide excitation by cross-spectrally pure, quasimonochromatic, spatially incoherent and coherent sources are considered in the evaluation of spectral changes occurring in the free space propagation of light in the paraxial regime from the exit face of the fibre waveguide to its far zone. In particular, the blue and the red shifts as well as the spectra modifications in the far zone of two-mode, weakly guiding, step-index fibre waveguide are presented for both spatially incoherent and coherent exciting sources. A frequency dependence ofthe modes is also considered which leads to a substantial reduction in spectral shifts. Moreover, it is revealed that a variable spectral modulation is present in the case of the fibre waveguide excitation by a spatially coherent source.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BH - Optika, masery a lasery

OECD FORD obor

—

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

1995

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

JOURNAL OF MODERN OPTICS

ISSN

0950-0340

e-ISSN

—

Svazek periodika

42

Číslo periodika v rámci svazku

7

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

20

Strana od-do

—

Kód UT WoS článku

A1995RH41800007

EID výsledku v databázi Scopus

—