| Autor: |
Seiki Ohara, Naoki Sugimoto, Tatsuo Nagashima, Tomoharu Hasegawa, Kazuro Kikuchi, Ju Han Lee |
| Rok vydání: |
2006 |
| Předmět: |
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| Zdroj: |
Journal of Lightwave Technology. 24:22-28 |
| ISSN: |
0733-8724 |
| DOI: |
10.1109/jlt.2005.860481 |
| Popis: |
The unique and practical benefits of the use of bismuth-oxide-based nonlinear fiber (Bi-NLF) in implementing a four-wave-mixing (FWM)-based wavelength converter for fiber-optic-communication-system applications are experimentally demonstrated. First, the Kerr-nonlinearity and stimulated-Brillouin-scattering (SBS) characteristics of our fabricated Bi-NLF are experimentally investigated. The Bi-NLF is found to have the superior advantage of a significantly high SBS threshold in addition to its ultrahigh Kerr nonlinearity /spl gamma/ of /spl sim/1100 W/sup -1//spl middot/km/sup -1/, compared to the conventional silica-based highly nonlinear fiber. Next, the authors perform an experiment for the FWM-based wavelength conversion of a non-return-to-zero (NRZ) signal within a 40-cm length of the Bi-NLF fusion spliced to standard silica fibers by using a continuous-wave (CW) high-power pump beam. Error-free tunable wavelength conversion over a 10-nm bandwidth is readily achieved. No SBS-suppression scheme is employed for the pump due to the high SBS threshold, which simplifies the system configuration and improves the quality of the wavelength-converted signal. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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