A method to predict the Raman gain spectra of germanosilicate fibers with arbitrary index profiles
| Autor: | Jake Bromage, M.E. Lines, Karsten Rottwitt |
|---|---|
| Rok vydání: | 2002 |
| Předmět: |
Optical amplifier
Silicon photonics Materials science Optical fiber business.industry Graded-index fiber Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials law.invention symbols.namesake Optics law symbols Coherent anti-Stokes Raman spectroscopy Electrical and Electronic Engineering Raman spectroscopy business Refractive index Photonic-crystal fiber |
| Zdroj: | IEEE Photonics Technology Letters. 14:24-26 |
| ISSN: | 1941-0174 1041-1135 |
| Popis: | In this letter, we present a technique for calculating the Raman gain spectra of germanosilicate fibers from their index profiles. The gain spectra depend on radial profiles of the guided optical modes and the glass composition, in particular the distribution of Si-O-Si and Ge-O-Si bridging bonds. We have obtained spectral coefficients, which represent the contributions from these bonds using Raman gain measurements made on a set of calibration fibers with well-characterized index profiles. We describe how these spectral coefficients can be used in the design of Raman gain fibers, and we demonstrate the accuracy of our technique over a broad range of fiber types. |
| Databáze: | OpenAIRE |
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