2012 Fiscal Year Final Research Report
Application of the all optical signal processing and the high-sensitive sensing devices based on the utilization of multi-channel fiber Bragg grating
| Project/Area Number |
22360140
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Electron device/Electronic equipment
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| Research Institution | Shizuoka University |
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Principal Investigator |
LI Hongpu 静岡大学, 工学部, 准教授 (90362186)
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| Project Period (FY) |
2010 – 2012
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| Keywords | 電子デバイス・機器 / 応用光学・量子光工学 / ファイバグレーティング / ファイバセンシング / 光信号処理 / WDM光通信システム / ファイバリングレーザ / 多チャンネルFBG |
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| Research Abstract |
In the first part of this research, a novel all-optical simultaneous pulse multiplication and shaping approach is proposed, which is based on the simultaneous utilization of two amplitude-assisted phase-only spectral filters realizable by using a short fiber Bragg grating. In the second part of this research, a novel scheme for quantitative calibration of a phase-shift formed in a linearly chirped fiber Bragg grating is numerically and experimentally demonstrated and applications of the phase-shift FBG to both the temperature and the refractive-index sensor have been proposed and numerically demonstrated. Finally, a novel approach to calibrate a phase-shift formed in a long-period fiber grating (LPG) is firstly proposed and numerically demonstrated. By using a CO2laser with high-repetition-rate pulses emission, an equivalent phase-shift is successfully created at middle of the LPG. As application of the proposed calibration scheme, measurement for the temperature and the refractive index of the ambient solution has been proposed and successfully demonstrated by using a phase-shifted LPG.
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