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Paper Abstract and Keywords
Presentation 2017-08-31 14:30
Measurement of Complex Amplitudes of Optical Signal Patterns in the Frequency Domain
Naoki Urakawa, Koji Igarashi (Osaka Univ.)
Abstract (in Japanese) (See Japanese page) 
(in English) We propose a scheme for measuring complex amplitudes of optical signal patterns in the frequency domain. In the coherent detection, the divided spectral components with the different frequencies are sequentially measured by adjusting the frequency of local oscillator. After that, the measured band-divided components are synthesized in the digital domain. Since the signal spectrum is divided into the multiple band-divided components with narrower bandwidth than the signal bandwidth, it is possible to use low-speed photodiode and analog-to-digital converter. By Fourier transformation of the synthesized spectrum, the temporal waveform and constellation can be regenerated. In order to synchronize band-divided components, it is required to compensate for fluctuation of phase, delay, and frequency between band-divided components. In this paper, we show a scheme for compensating for the fluctuation by digital signal processing.
Keyword (in Japanese) (See Japanese page) 
(in English) Optical signal measurement / Coherent detection / Signal processing / / / / /  
Reference Info. IEICE Tech. Rep., vol. 117, no. 196, OCS2017-23, pp. 1-6, Aug. 2017.
Paper # OCS2017-23 
Date of Issue 2017-08-24 (OCS) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380

Conference Information
Committee OFT OCS LSJ  
Conference Date 2017-08-31 - 2017-09-01 
Place (in Japanese) (See Japanese page) 
Place (in English) Hokkaido Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To OCS 
Conference Code 2017-08-OFT-OCS-LSJ 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Measurement of Complex Amplitudes of Optical Signal Patterns in the Frequency Domain 
Sub Title (in English)  
Keyword(1) Optical signal measurement  
Keyword(2) Coherent detection  
Keyword(3) Signal processing  
1st Author's Name Naoki Urakawa  
1st Author's Affiliation Osaka University (Osaka Univ.)
2nd Author's Name Koji Igarashi  
2nd Author's Affiliation Osaka University (Osaka Univ.)
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Date Time 2017-08-31 14:30:00 
Presentation Time 25 
Registration for OCS 
Paper # IEICE-OCS2017-23 
Volume (vol) IEICE-117 
Number (no) no.196 
Page pp.1-6 
#Pages IEICE-6 
Date of Issue IEICE-OCS-2017-08-24 

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