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Development of Piezoelectric Copolymer Jacketed Fiber and Its Applications

压电共聚物护套光纤的研制及其应用

基本信息

批准号：
62850049
负责人：
IMAI Masaaki
金额：
$ 2.69万
依托单位：
Hokkaido University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Developmental Scientific Research
财政年份：
1987
资助国家：
日本
起止时间：
1987 至 1988
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-62850049/
关键词：
Optical fiber Piezoelectric copolymer Phase modulator 光波センシング

项目摘要

An all-fiber phase modulator that is an integrated modulator into optical fibers was made by coating single-mode fibers with a vinylidene fluoride/trifluoroethylene copolymer [P(VDF_x/TrFE_<100-x>), x = 73mol%] radially poled. The optical performance of the fiber os a phase modulator was demonstrated over a wide frequency range from 20 Hz to 50 MHz. A phase sensitivity of 2.1 x 10^<-5>rad/(V/m) per meter of fiber was measured in the low frequency region and 3.5 x 10^<-6>rad/(V/m)/m in the high frequency region. The optical response at frequencies higher than 1 MHz was found to be no longer flat and dominated by radial resonances of the fiber-jacket composite. A qualitative agreement exists between analysis and experimental data, especially, on the appearance of the double peaks measured at 7 and 18 MHz due to radial resonances.

用偏氟乙烯/三氟乙烯共聚物[P（VDF_x/TrFE_x），x = 73mol%]径向极化涂覆单模光纤，制成了一种全光纤相位调制器<100-x>。在20 Hz ~ 50 MHz的宽频率范围内，测试了该光纤作为相位调制器的光学性能。在低频区测得每米光纤的相位灵敏度为2.1 × 10 - 4 <-5>rad/（V/m），在高频区测得每米光纤的相位灵敏度为3.5 × 10 - 4 <-6>rad/（V/m）/m。发现在高于1 MHz的频率下的光学响应不再平坦，并且由纤维护套复合材料的径向共振主导。分析和实验数据之间存在着定性的一致性，特别是在7和18 MHz处测量到的由于径向共振而出现的双峰。