Invention Grant
- Patent Title: Multi-parameter sensing based on few-mode fiber Bragg gratings using femtosecond IR laser
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Application No.: US14957592Application Date: 2015-12-02
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Publication No.: US10018523B2Publication Date: 2018-07-10
- Inventor: Ting Wang , Yi Weng
- Applicant: NEC Laboratories America, Inc.
- Applicant Address: JP
- Assignee: NEC Corporation
- Current Assignee: NEC Corporation
- Current Assignee Address: JP
- Agent Joseph Kolodka
- Main IPC: G02B6/34
- IPC: G02B6/34 ; G02B6/02 ; G01L1/24 ; G02B6/32 ; G01K11/32 ; G01D5/353
Abstract:
A sensor system includes a femtosecond infrared (fs-IR) laser to generate a laser beam; a reflecting mirror optically receiving the laser beam; a lens optically coupled to the reflecting mirror to focus the laser beam; a phase mask receiving the laser beam from the lens to generate an index modulated pattern; and a few-mode fiber (FMF) receiving the index modulated pattern.
Public/Granted literature
- US20170199093A1 Multi-parameter Sensing based on Few-mode Fiber Bragg Gratings using Femtosecond IR Laser Public/Granted day:2017-07-13
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