Invention Application
- Patent Title: METHOD AND DEVICE FOR TUNING BRAGG GRATINGS
- Patent Title (中): 用于调节布拉格光栅的方法和装置
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Application No.: PCT/SE2002/001314Application Date: 2002-07-02
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Publication No.: WO2003005082A1Publication Date: 2003-01-16
- Inventor: FOKINE, Michael , NILSSON, Lars-Erik , CLAESSON, Åsa , MARGULIS, Walter , KJELLBERG, Leif , ARSALANE, Hania , TORRES, Pedro
- Applicant: ACREO AB , FOKINE, Michael , NILSSON, Lars-Erik , CLAESSON, Åsa , MARGULIS, Walter , KJELLBERG, Leif , ARSALANE, Hania , TORRES, Pedro
- Applicant Address: Electrum 236, S-164 40 Kista SE
- Assignee: ACREO AB,FOKINE, Michael,NILSSON, Lars-Erik,CLAESSON, Åsa,MARGULIS, Walter,KJELLBERG, Leif,ARSALANE, Hania,TORRES, Pedro
- Current Assignee: ACREO AB,FOKINE, Michael,NILSSON, Lars-Erik,CLAESSON, Åsa,MARGULIS, Walter,KJELLBERG, Leif,ARSALANE, Hania,TORRES, Pedro
- Current Assignee Address: Electrum 236, S-164 40 Kista SE
- Agency: AWAPATENT AB
- Priority: SE0102381-1 20010702; SE0103008-9 20010910
- Main IPC: G02B6/16
- IPC: G02B6/16
Abstract:
A method and a device for tuning a Bragg grating in an optical fiber is disclosed. Tuning of the grating is obtained by applying current to at least one longitudinal, internal electrode arranged along the core of the fiber. When current is passed through the electrode, thermal expansion occurs that produces a stress on the fiber core. At the same time, the temperature of the core is increased. This leads to an electrically controlled tuning of the Bragg grating.
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