Fiber-optic sensor using a tandem combination of a multimode fiber and a self-pumped phase conjugator.
An interferometric sensing scheme using a multimode fiber and a self-pumped phase conjugator is proposed. The self-pumped phase conjugator corrects the distortion due to mode scrambling in the fiber and responds to any uniform optical phase change caused by environmental factors. A temperature sensor based on the proposed scheme is used to demonstrate the feasibility of the scheme.
Kwong
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