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Paper Abstract and Keywords
Presentation 2015-01-30 10:55
Pre-equalizing EO Modulator Using Traveling-Wave Electrodes and Polarization-Reversed Structures
Takayuki Mitsubo, Hiroshi Murata, Yasuyuki Okamura (Osaka Univ.) PN2014-68 OPE2014-193 LQE2014-180 EST2014-122 MWP2014-90 Link to ES Tech. Rep. Archives: OPE2014-193 LQE2014-180 EST2014-122 MWP2014-90
Abstract (in Japanese) (See Japanese page) 
(in English) We have proposed a pre-equalizing electro-optic (EO) modulator using traveling-wave electrodes and polarization-reversed structures for compensation for fiber dispersion effect. The proposed EO modulator can convert high-speed electrical signals to optical signals and can compensate for the signal distortion caused by fiber dispersion at the same time. It can operate in the high frequency range over 100GHz since it is based on the Pockels effect in a ferroelectric crystal. Therefore, it is applicable to ultra-high-speed communication systems. In this device, the velocity of the lightwave propagating in the optical waveguide is different from that of the modulation wave travelling along the electrode. Then the impulse response of the modulator becomes a real function similar to the polarization reversal pattern itself. By utilizing this relationship, the impulse response for the fiber dispersion effect compensation is obtainable. In this paper, the design of pre-equalizing EO modulator with polarization-reversed structures by utilizing delta-sigma transformation is reported. The control of pre-equalizing characteristics by loading a metal or dielectric plate is also reported.
Keyword (in Japanese) (See Japanese page) 
(in English) Equalization / Electro-optic modulator / Fiber dispersion / Polarization-reversed structures / Impulse response / / /  
Reference Info. IEICE Tech. Rep., vol. 114, no. 431, OPE2014-193, pp. 255-260, Jan. 2015.
Paper # OPE2014-193 
Date of Issue 2015-01-22 (PN, OPE, LQE, EST, MWP) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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Download PDF PN2014-68 OPE2014-193 LQE2014-180 EST2014-122 MWP2014-90 Link to ES Tech. Rep. Archives: OPE2014-193 LQE2014-180 EST2014-122 MWP2014-90

Conference Information
Committee EST OPE LQE EMT PN MWP IEE-EMT  
Conference Date 2015-01-29 - 2015-01-30 
Place (in Japanese) (See Japanese page) 
Place (in English)  
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Paper Information
Registration To OPE 
Conference Code 2015-01-EST-OPE-LQE-EMT-PN-MWP-EMT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Pre-equalizing EO Modulator Using Traveling-Wave Electrodes and Polarization-Reversed Structures 
Sub Title (in English)  
Keyword(1) Equalization  
Keyword(2) Electro-optic modulator  
Keyword(3) Fiber dispersion  
Keyword(4) Polarization-reversed structures  
Keyword(5) Impulse response  
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1st Author's Name Takayuki Mitsubo  
1st Author's Affiliation Osaka University (Osaka Univ.)
2nd Author's Name Hiroshi Murata  
2nd Author's Affiliation Osaka University (Osaka Univ.)
3rd Author's Name Yasuyuki Okamura  
3rd Author's Affiliation Osaka University (Osaka Univ.)
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Speaker
Date Time 2015-01-30 10:55:00 
Presentation Time 25 
Registration for OPE 
Paper # IEICE-PN2014-68,IEICE-OPE2014-193,IEICE-LQE2014-180,IEICE-EST2014-122,IEICE-MWP2014-90 
Volume (vol) IEICE-114 
Number (no) no.430(PN), no.431(OPE), no.432(LQE), no.433(EST), no.434(MWP) 
Page pp.255-260 
#Pages IEICE-6 
Date of Issue IEICE-PN-2015-01-22,IEICE-OPE-2015-01-22,IEICE-LQE-2015-01-22,IEICE-EST-2015-01-22,IEICE-MWP-2015-01-22 


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