| Presentation | 1998/6/18 Wavelength Selective Coupling and Switching Characteristics of a Nonlinear Directional Fiber Coupler(NLDC) Masaaki IMAI, Jun NAKAI, Masahito KAJINUMA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A fiber directional coupler is one of the passive optical devices used in fiber applications such as wavelength division multiplexing and distributed/multiplexed coherent sensing systems. When the coupler is excited with an intense laser light, an intensity dependent index of refraction is induced due to an optical Kerr effect and it modifies the linear coupling characteristics of the coupler. In this paper, we consider a fused-tapered directional coupler and analyzed nonlinear coupling characteristics based on a coupled mode theory with use of a cascaded coupler segment method for the tapered section. The evolution of peak power at the coupled and through ports of the coupler was also demonstrated using a mode-locked Ti:sapphire laser that produces 50 femtosecond pulses at wavelengths of 800-850nm with a repetition rate of 81.7MHz. As a result, the wavelength selective coupling and switching characteristics in a nonlinear directional fiber coupler(NLDC)can be confirmed experimentally. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Optical Kerr effect / Nonlinear directional fiber coupler / Wavelength selective coupling and switching characteristics / Femtosecond optical pulses |
| Paper # | PS98-11,OFT98-12 |
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| Conference Information | |
| Committee | OFT |
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| Conference Date | 1998/6/18(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Optical Fiber Technology (OFT) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Wavelength Selective Coupling and Switching Characteristics of a Nonlinear Directional Fiber Coupler(NLDC) |
| Sub Title (in English) | |
| Keyword(1) | Optical Kerr effect |
| Keyword(2) | Nonlinear directional fiber coupler |
| Keyword(3) | Wavelength selective coupling and switching characteristics |
| Keyword(4) | Femtosecond optical pulses |
| 1st Author's Name | Masaaki IMAI |
| 1st Author's Affiliation | Muroran Institute of Technology() |
| 2nd Author's Name | Jun NAKAI |
| 2nd Author's Affiliation | Muroran Institute of Technology |
| 3rd Author's Name | Masahito KAJINUMA |
| 3rd Author's Affiliation | Muroran Institute of Technology |
| Date | 1998/6/18 |
| Paper # | PS98-11,OFT98-12 |
| Volume (vol) | vol.98 |
| Number (no) | 111 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |