Presentation 2007-05-25
Design of Grating Couplers Based on Dual-Core Fibres
Florence Yuen Ming CHAN, Kiyotoshi YASUMOTO,
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Abstract(in English) We demonstrate a Bragg-reflection grating coupler using a dual-core fibre with long-period (LPG) and short-period grating (FBG) pair. The LPG couples light from the primary core to the cladding while the FBG operates in reflection and acts to drop the channel from the secondary core. In contrast to conventional FBG-based devices, the proposed coupler is non-reflective along the launching core. Achievement of high reflectivity and means of suppressing side lobes are highlighted. Numerical examples are given to illustrate the possibility of obtaining an effective flat-top Bragg-reflection bandpass filter with steep band transitions and negligible side lobes. The results are useful for the design of grating-based devices with applications in wavelength-division-multiplexed systems.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Coupled-mode theory / fibre gratings / long-period gratings / Bragg gratings / dual-core fibres / optical couplers / optical filters
Paper # OFT2007-12
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Committee OFT
Conference Date 2007/5/17(1days)
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Registration To Optical Fiber Technology (OFT)
Language ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Design of Grating Couplers Based on Dual-Core Fibres
Sub Title (in English)
Keyword(1) Coupled-mode theory
Keyword(2) fibre gratings
Keyword(3) long-period gratings
Keyword(4) Bragg gratings
Keyword(5) dual-core fibres
Keyword(6) optical couplers
Keyword(7) optical filters
1st Author's Name Florence Yuen Ming CHAN
1st Author's Affiliation Department of Computer Science and Communication Engineering, Kyushu University()
2nd Author's Name Kiyotoshi YASUMOTO
2nd Author's Affiliation Department of Computer Science and Communication Engineering, Kyushu University
Date 2007-05-25
Paper # OFT2007-12
Volume (vol) vol.107
Number (no) 52
Page pp.pp.-
#Pages 4
Date of Issue