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Paper Abstract and Keywords
Presentation 2005-04-22 15:25
Study on Optical 16-ary Amplitude- Phase-Shift Keying
Kenro Sekine, Nobuhiko Kikuchi, Shinya Sasaki, Shigenori Hayase, Chie Hasegawa, Toshiki Sugawara (Hitachi Ltd.)
Abstract (in Japanese) (See Japanese page) 
(in English) Recently, multilevel optical modulation schemes attract much attention, because multilevel modulation schemes have narrower spectral bandwidth, larger chromatic dispersion tolerance, and looser requirement for bandwidth of electrical circuits. We have already proposed and demonstrated 8-ary amplitude- and phase- shift keying (APSK) modulation scheme by the combination of binary amplitude- shift keying and differential quaternary phase- shift keying (DQPSK). In this paper, we propose and experimentally demonstrate a novel 16-ary optical modulation / demodulation scheme (16APSK), combining QASK and DQPSK, with 10 Gsymbol/s and 4 bit/symbol. The measured spectral width is 33.8 GHz, and the dispersion tolerance is 50 ps/nm.
Keyword (in Japanese) (See Japanese page) 
(in English) modulation format / multilevel modulation / ASK / PSK / APSK / / /  
Reference Info. IEICE Tech. Rep., vol. 105, no. 32, OCS2005-8, pp. 29-34, April 2005.
Paper # OCS2005-8 
Date of Issue 2005-04-15 (OCS) 
ISSN Print edition: ISSN 0913-5685
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Conference Information
Committee OCS  
Conference Date 2005-04-22 - 2005-04-22 
Place (in Japanese) (See Japanese page) 
Place (in English) kikai-Shinko-Kaikaen 
Topics (in Japanese) (See Japanese page) 
Topics (in English) High-capacity Transmission system, ultra-high-speed transmission technologies, optical amplification technologies 
Paper Information
Registration To OCS 
Conference Code 2005-04-OCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Study on Optical 16-ary Amplitude- Phase-Shift Keying 
Sub Title (in English)  
Keyword(1) modulation format  
Keyword(2) multilevel modulation  
Keyword(3) ASK  
Keyword(4) PSK  
Keyword(5) APSK  
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Keyword(8)  
1st Author's Name Kenro Sekine  
1st Author's Affiliation Hitachi Ltd., Central Research Laboratory (Hitachi Ltd.)
2nd Author's Name Nobuhiko Kikuchi  
2nd Author's Affiliation Hitachi Ltd., Central Research Laboratory (Hitachi Ltd.)
3rd Author's Name Shinya Sasaki  
3rd Author's Affiliation Hitachi Ltd., Central Research Laboratory (Hitachi Ltd.)
4th Author's Name Shigenori Hayase  
4th Author's Affiliation Hitachi Ltd., Central Research Laboratory (Hitachi Ltd.)
5th Author's Name Chie Hasegawa  
5th Author's Affiliation Hitachi Ltd., Central Research Laboratory (Hitachi Ltd.)
6th Author's Name Toshiki Sugawara  
6th Author's Affiliation Hitachi Ltd., Central Research Laboratory (Hitachi Ltd.)
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Speaker Author-1 
Date Time 2005-04-22 15:25:00 
Presentation Time 25 minutes 
Registration for OCS 
Paper # OCS2005-8 
Volume (vol) vol.105 
Number (no) no.32 
Page pp.29-34 
#Pages 6 
Date of Issue 2005-04-15 (OCS) 

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