Inline Measurement of Modal Phase Differences in Optical Fibers
| Autor: | Martin Schnack, Carsten Fallnich, Niklas M. Lüpken |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Facet (geometry)
Materials science Optical fiber business.industry Phase (waves) 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences law.invention 010309 optics Transverse plane Optics Modal Amplitude Modulation law 0103 physical sciences Fiber 0210 nano-technology business |
| Zdroj: | 2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC). |
| Popis: | Transverse modes in optical fibers have gained increasing interest in the recent years. For the measurement of the modal amplitude and modal phase in a fiber, several techniques exist examining the spatial distribution of the light exiting the fiber end facet [1,2]. However, such techniques are not suitable for inline monitoring of the modal content in an all-fiber application, like lab-on-a-tip sensing applications, where the distal end of the fiber is not accessible. Here, we present an inline-measurement technique for modal phase differences and experimentally demonstrate the direct measurement of all-optically induced changes of the modal phase difference by intermodal cross-phase modulation (intermodal XPM) [3]. |
| Databáze: | OpenAIRE |
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