| Presentation | 2004-11-05 Second-harmonic generation from poled side-tunnel fiber and quasi phase matching by depoling with excimer-laser exposure Takeshi Miyazaki, Takahiro Tsukada, Toru Mizunami, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The second-order nonlinearity of optical fiber is expected for applications to second-harmonic generators, optical modulators, or switches. We studied the second-order nonlinearity of silica fiber having side tunnels induced by poling with electrode wires put into the tunnels. For quasi-phase matching, we proposed to remove the second-order nonlinearity periodically by ultraviolet irradiation through a patterned mask by depoling. In the experiment, a KrF excimer laser was used to irradiate the poled.fiber through a silica mask with a chromium stripe pattern with a period of 40 urn. By tilting the mask, the effective period on the fiber was adjusted to 42 urn, the coherence length of silica at a 1.06-μm fundamental wavelength. The second-harmonic light of a Q-switched Nd^<3+>:YAG laser was measured. The measured second-harmonic power increased to 9 times by quasi-phase matching with periodic depoling by irradiation with a KrF excimer laser. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Second-Harmonic Generation / Thermal Poling / Optical Fiber / Quasi-Phase Matching / Depoling |
| Paper # | OCS2004-102,OPE2004-167,LQE2004-111 |
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| Conference Information | |
| Committee | OCS |
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| Conference Date | 2004/10/29(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 Communication Systems (OCS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Second-harmonic generation from poled side-tunnel fiber and quasi phase matching by depoling with excimer-laser exposure |
| Sub Title (in English) | |
| Keyword(1) | Second-Harmonic Generation |
| Keyword(2) | Thermal Poling |
| Keyword(3) | Optical Fiber |
| Keyword(4) | Quasi-Phase Matching |
| Keyword(5) | Depoling |
| 1st Author's Name | Takeshi Miyazaki |
| 1st Author's Affiliation | Faculty of Engineering, Kyushu Institute of Technology() |
| 2nd Author's Name | Takahiro Tsukada |
| 2nd Author's Affiliation | Faculty of Engineering, Kyushu Institute of Technology |
| 3rd Author's Name | Toru Mizunami |
| 3rd Author's Affiliation | Faculty of Engineering, Kyushu Institute of Technology |
| Date | 2004-11-05 |
| Paper # | OCS2004-102,OPE2004-167,LQE2004-111 |
| Volume (vol) | vol.104 |
| Number (no) | 411 |
| Page | pp.pp.- |
| #Pages | 4 |
| Date of Issue | |