Transmission of 160.7-GBaud 1.64-Tbps Signal Using Phase-Interleaving Optical Modulator and Digital Spectral Weaver

We demonstrate a new optical-domain bandwidth extension technology with a simple optical configuration. We use an integrated optical phase-interleaving in-phase-and-quadrature modulator (PI-IQM) consisting of a differential phase modulator followed by a pair of IQMs in combination with an 8-by-4 dig...

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Veröffentlicht in:	Journal of lightwave technology 2023-06, Vol.41 (11), p.1-7
Hauptverfasser:	Yamazaki, Hiroshi, Ogiso, Yoshihiro, Nakamura, Masanori, Jyo, Teruo, Nagatani, Munehiko, Ozaki, Josuke, Kobayashi, Takayuki, Hashimoto, Toshikazu, Miyamoto, Yutaka
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Sprache:	eng
Schlagworte:	Bandwidth Bandwidth extension Bandwidths Configurations Digital spectral weaver Digital to analog converters Digital-to-analog converter (DAC) Optical communication Optical device fabrication Optical fibers Optical filters Optical modulation Optical phase interleaving Optical transmitters Quadrature amplitude modulation Quadrature amplitude modulation (QAM)
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container_title	Journal of lightwave technology
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creator	Yamazaki, Hiroshi Ogiso, Yoshihiro Nakamura, Masanori Jyo, Teruo Nagatani, Munehiko Ozaki, Josuke Kobayashi, Takayuki Hashimoto, Toshikazu Miyamoto, Yutaka
description	We demonstrate a new optical-domain bandwidth extension technology with a simple optical configuration. We use an integrated optical phase-interleaving in-phase-and-quadrature modulator (PI-IQM) consisting of a differential phase modulator followed by a pair of IQMs in combination with an 8-by-4 digital spectral weaver (DSW). With them, we can synthesize arbitrary optical signals with bandwidths up to twice the analog bandwidth of digital-to-analog converters (DACs). The optical configuration is simpler than those of conventional frequency- or time-interleaving approaches. We fabricated the PI-IQM using an InP n-p-i-n platform and tested it with driving signals with a bandwidth of 41 GHz generated by the DSW and 93.7-GS/s DACs. As a result, we successfully generated 160.7-GBaud probabilistically shaped quadrature amplitude modulation signals and achieved net data rates of 1.68 Tbps at back to back and 1.64 Tbps after 80-km transmission.
doi_str_mv	10.1109/JLT.2023.3236350
format	Article
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We use an integrated optical phase-interleaving in-phase-and-quadrature modulator (PI-IQM) consisting of a differential phase modulator followed by a pair of IQMs in combination with an 8-by-4 digital spectral weaver (DSW). With them, we can synthesize arbitrary optical signals with bandwidths up to twice the analog bandwidth of digital-to-analog converters (DACs). The optical configuration is simpler than those of conventional frequency- or time-interleaving approaches. We fabricated the PI-IQM using an InP n-p-i-n platform and tested it with driving signals with a bandwidth of 41 GHz generated by the DSW and 93.7-GS/s DACs. 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subjects	Bandwidth Bandwidth extension Bandwidths Configurations Digital spectral weaver Digital to analog converters Digital-to-analog converter (DAC) Optical communication Optical device fabrication Optical fibers Optical filters Optical modulation Optical phase interleaving Optical transmitters Quadrature amplitude modulation Quadrature amplitude modulation (QAM)
title	Transmission of 160.7-GBaud 1.64-Tbps Signal Using Phase-Interleaving Optical Modulator and Digital Spectral Weaver
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