Presentation 2013-10-24
Reduction of Wavelength Dependence of Coupling Characteristics using Si/SiO_2 Optical Waveguide Curved Directional Coupler
Hisayasu MORINO, Takeo MARUYAMA, Koichi IIYAMA,
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Abstract(in English) Directional couplers are widely used as one of the key component of optical integrated circuits. However, the coupling ratio of the conventional directional coupler is highly sensitive to wavelength, and it degrades the characteristics of the devices that are consisted of directional couplers for WDM (Wavelength Division Multiplexing) transmission. The curved directional coupler has been proposed using silica optical waveguide as one of the coupler which realize wavelength insensitive, small footprint and tolerant to fabrication. In this work, we theoretically investigated this curved coupler using Si photonic wire waveguide and got results that this curved coupler whose bending radius of 21μmm and the coupling length of 7.40μm can reduce the wavelength dependence and achieve about 3.3 fold enhancement of the operational bandwidth in wavelength range of 1.5μm-1.6μm compared with the conventional directional coupler.
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Keyword(in English) Silicon photonic wire waveguide / Directional coupler / Wavelength insensitive operation
Paper # OCS2013-47,OPE2013-93,LQE2013-63
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Committee OCS
Conference Date 2013/10/17(1days)
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Registration To Optical Communication Systems (OCS)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Reduction of Wavelength Dependence of Coupling Characteristics using Si/SiO_2 Optical Waveguide Curved Directional Coupler
Sub Title (in English)
Keyword(1) Silicon photonic wire waveguide
Keyword(2) Directional coupler
Keyword(3) Wavelength insensitive operation
1st Author's Name Hisayasu MORINO
1st Author's Affiliation Graduate School of Science and Technology,Kanazawa University()
2nd Author's Name Takeo MARUYAMA
2nd Author's Affiliation Graduate School of Science and Technology,Kanazawa University
3rd Author's Name Koichi IIYAMA
3rd Author's Affiliation Graduate School of Science and Technology,Kanazawa University
Date 2013-10-24
Paper # OCS2013-47,OPE2013-93,LQE2013-63
Volume (vol) vol.113
Number (no) 262
Page pp.pp.-
#Pages 4
Date of Issue