Optical fiber characteristic measurement system and humidity measurement method
AssigneeYokogawa Electric Corporation
InventorsFumie Watanabe, Yuta Suzuki, Shin-ichirou Tezuka, Masayoshi Honma
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Abstract
An optical fiber characteristic measurement system (1) according to the present disclosure includes an optical fiber (20) including a wet portion and a dry portion, and an optical fiber characteristic measurement apparatus (10) configured to measure a Brillouin frequency shift of Brillouin scattered light from the optical fiber (20). The optical fiber characteristic measurement apparatus (10) measures humidity based on a first Brillouin frequency shift, which is a Brillouin frequency shift at the wet portion, and a second Brillouin frequency shift, which is a Brillouin frequency shift at the dry portion.
Claims14
An optical fiber characteristic measurement system comprising:
- an optical fiber including a wet portion and a dry portion;
- and
- an optical fiber characteristic measurement apparatus configured to measure a Brillouin frequency shift of Brillouin scattered light from the optical fiber, wherein
- the optical fiber characteristic measurement apparatus measures humidity based on a first Brillouin frequency shift, which is a Brillouin frequency shift at the wet portion, and a second Brillouin frequency shift, which is a Brillouin frequency shift at the dry portion.
A humidity measurement method in an optical fiber characteristic measurement system comprising an optical fiber including a wet portion and a dry portion, and an optical fiber characteristic measurement apparatus configured to measure a Brillouin frequency shift of Brillouin scattered light from the optical fiber, the humidity measurement method comprising:
- measuring a first Brillouin frequency shift, which is a Brillouin frequency shift at the wet portion;
- measuring a second Brillouin frequency shift, which is a Brillouin frequency shift at the dry portion;
- and
- measuring humidity based on the first Brillouin frequency shift and the second Brillouin frequency shift.
Dependencies are inferred from the claim text.