Advanced lithium niobate optical modulators for optical communication applications

Centralized-light-source wavelength division multiplexing passive optical network (WDM-PON) has been intensively studied in recent years. Several re-modulation schemes have been proposed and demonstrated in laboratory but each with several disadvantages. To achieve a colorless optical network unit (...

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Main Author: Wang, Ruo Xi.
Other Authors: Shum Ping
Format: Final Year Project
Language:English
Published: 2010
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Online Access:http://hdl.handle.net/10356/40023
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-400232023-07-07T16:37:13Z Advanced lithium niobate optical modulators for optical communication applications Wang, Ruo Xi. Shum Ping School of Electrical and Electronic Engineering Network Technology Research Centre DRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics Centralized-light-source wavelength division multiplexing passive optical network (WDM-PON) has been intensively studied in recent years. Several re-modulation schemes have been proposed and demonstrated in laboratory but each with several disadvantages. To achieve a colorless optical network unit (ONU) and overcome the disadvantages of previous schemes, a novel scheme with downstream polarization shift keying (PolSK) and upstream on-off keying (OOK) is proposed and demonstrated. PolSK is generated by a polarization modulator (PolM) which is commercialized recently. The PolSK coded by PolM appears to be more immune to polarization fluctuation of input polarization state and is free from frequency chirp, compared with previous PolSK generation by phase modulator (PM). With 20km downstream and upstream transmission, the signal is maintained a low bit error rate (BER) which indicates the proposed scheme is a potential candidate for next generation wavelength-reuse WDM-PON. Bachelor of Engineering 2010-06-09T05:46:48Z 2010-06-09T05:46:48Z 2010 2010 Final Year Project (FYP) http://hdl.handle.net/10356/40023 en Nanyang Technological University 53 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics
spellingShingle DRNTU::Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics
Wang, Ruo Xi.
Advanced lithium niobate optical modulators for optical communication applications
description Centralized-light-source wavelength division multiplexing passive optical network (WDM-PON) has been intensively studied in recent years. Several re-modulation schemes have been proposed and demonstrated in laboratory but each with several disadvantages. To achieve a colorless optical network unit (ONU) and overcome the disadvantages of previous schemes, a novel scheme with downstream polarization shift keying (PolSK) and upstream on-off keying (OOK) is proposed and demonstrated. PolSK is generated by a polarization modulator (PolM) which is commercialized recently. The PolSK coded by PolM appears to be more immune to polarization fluctuation of input polarization state and is free from frequency chirp, compared with previous PolSK generation by phase modulator (PM). With 20km downstream and upstream transmission, the signal is maintained a low bit error rate (BER) which indicates the proposed scheme is a potential candidate for next generation wavelength-reuse WDM-PON.
author2 Shum Ping
author_facet Shum Ping
Wang, Ruo Xi.
format Final Year Project
author Wang, Ruo Xi.
author_sort Wang, Ruo Xi.
title Advanced lithium niobate optical modulators for optical communication applications
title_short Advanced lithium niobate optical modulators for optical communication applications
title_full Advanced lithium niobate optical modulators for optical communication applications
title_fullStr Advanced lithium niobate optical modulators for optical communication applications
title_full_unstemmed Advanced lithium niobate optical modulators for optical communication applications
title_sort advanced lithium niobate optical modulators for optical communication applications
publishDate 2010
url http://hdl.handle.net/10356/40023
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