| Presentation | 2000/5/19 Optical Fiber Directional Coupler-Type Frequency Shifter Shinya SATO, Noriko Ohta, Masaaki Imai, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The optical fiber frequency shifter is indispensable device for a heterodyne interferometer-based optical measurement and sensing techniques which is required to shift optical frequency. In this paper, we describe an acousto-optic frequency shifter using a fused taper directional coupler that is originally phase mismatched. The maximum coupling ratio of a fused taper coupler with dissimilar fibers is considerably lower than 100%. However, a traveling flexual acoustic wave can cause resonant forward coupling between the coupling modes and the frequency-shifted light emerges out the coupler's output made of dissimilar fibers. Design theory and fabrication of a coupler-type frequency shifter and experimental results of the measurement are followed by the principle of optical frequency shifting. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Optical frequency shifter / Asymmetric fiber coupler / Acousto-optic interaction |
| Paper # | OFT2000-17 |
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| Conference Information | |
| Committee | OFT |
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| Conference Date | 2000/5/19(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) | Optical Fiber Directional Coupler-Type Frequency Shifter |
| Sub Title (in English) | |
| Keyword(1) | Optical frequency shifter |
| Keyword(2) | Asymmetric fiber coupler |
| Keyword(3) | Acousto-optic interaction |
| 1st Author's Name | Shinya SATO |
| 1st Author's Affiliation | Muroran Institute of Technology() |
| 2nd Author's Name | Noriko Ohta |
| 2nd Author's Affiliation | Asahi Optical Co., Ltd. |
| 3rd Author's Name | Masaaki Imai |
| 3rd Author's Affiliation | Muroran Institute of Technology |
| Date | 2000/5/19 |
| Paper # | OFT2000-17 |
| Volume (vol) | vol.100 |
| Number (no) | 85 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |