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Non-linear Signal R...
Non-linear Signal Retrieval in Wide-Band Photonic Time-Stretch Systems Using the Gerchberg-Saxton Algorithm
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- Stigwall, Johan, 1977 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Galt, Sheila, 1956 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- ISBN 1424402042
- 2006
- 2006
- Engelska.
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Ingår i: International Topical Meeting on Microwave Photonics, Grenoble, France, Oct. 3-6, 2006. - 1424402042 ; , s. 88-
- Relaterad länk:
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https://research.cha...
Abstract
Ämnesord
Stäng
- The Gerchberg-Saxton algorithm, which is often used for phase retrieval in free space diffractive optics, is here applied to the problem of signal retrieval in dualoutput (phase-diverse) photonic time-stretch systems. Using wide band noise covering the first two fading frequencies as an input signal we numerically analyze the proposed algorithm for different numbers of iterations, measurement noise levels, mis-estimation of system parameters and optical modulation depths. We show that the algorithm can successfully compensate for non-linear distortion of the signal due to chromatic dispersion, that it is robust to noise and mis-estimated system parameters, and that it converges very rapidly (within ten iterations). For lower signal-to-noise ratios and/or smaller modulation depths it also provides a non-iterative method of retrieving the inputsignal.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Telekommunikation (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Telecommunications (hsv//eng)
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Reglerteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Control Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Signalbehandling (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Signal Processing (hsv//eng)
Nyckelord
- optical signal processing
- photonic analog-to-digital conversion
- Gerchberg-Saxton algorithm
- microwave photonics
- fiber optics
- phase retrieval
- signal processing
- photonic time-stretch
- iterative methods
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