| Presentation | 2006-11-16 A Study of Signal Conversion from Mechanical Vibration to Position Modulated Optical Pulses Using a Light Source with Periodic Wavelength Change and an Optical Tunable Filter Ikuo YAMASHITA, Kyoichi ORO, Shigeyuki SEIKAI, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A novel vibration sensor using a technique of converting the vibration into position modulated optical pulses is described. The laser light whose wavelength changes at a cycle of several kHz is launched into a fiber and passes through an optical filter whose center wavelength is changed in proportion to the mechanical movement. The output signal from the filter becomes optical pulses because the laser light passes only when the both wavelengths coincide. In case of the vibration speed is lower than kHz, time position of the optical pulses is changed according to the vibration, and thus the pulse position modulated signal is obtained. The basic operation of the scheme is experimentally confirmed using a 5-km transmission line. The light source with periodic wavelength change is obtained using a ring laser that includes a semiconductor optical amplifier and a Fabry-Perot filter. As the result, the clear optical signals with pulse position modulation are generated. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Optical fiber / Vibration sensor / Optical pulse / Pulse position modulation / Optical tunable filter / Semiconductor optical amplifier |
| Paper # | OCS2006-62,OFT2006-47 |
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| Conference Information | |
| Committee | OFT |
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| Conference Date | 2006/11/9(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) | A Study of Signal Conversion from Mechanical Vibration to Position Modulated Optical Pulses Using a Light Source with Periodic Wavelength Change and an Optical Tunable Filter |
| Sub Title (in English) | |
| Keyword(1) | Optical fiber |
| Keyword(2) | Vibration sensor |
| Keyword(3) | Optical pulse |
| Keyword(4) | Pulse position modulation |
| Keyword(5) | Optical tunable filter |
| Keyword(6) | Semiconductor optical amplifier |
| 1st Author's Name | Ikuo YAMASHITA |
| 1st Author's Affiliation | Kansai Electric Power, Power Engineering R&D Center() |
| 2nd Author's Name | Kyoichi ORO |
| 2nd Author's Affiliation | Kansai Electric Power, Power Engineering R&D Center |
| 3rd Author's Name | Shigeyuki SEIKAI |
| 3rd Author's Affiliation | Takuma National College of Technology |
| Date | 2006-11-16 |
| Paper # | OCS2006-62,OFT2006-47 |
| Volume (vol) | vol.106 |
| Number (no) | 350 |
| Page | pp.pp.- |
| #Pages | 4 |
| Date of Issue | |