Broadband injection-locked homodyne receiver for digital coherent transmission using a low Q Fabry-Perot LD

Keisuke Kasai; Takashi Kan; Masato Yoshida; Toshihiko Hirooka; Masataka Nakazawa

doi:10.1364/OE.456327

Broadband injection-locked homodyne receiver for digital coherent transmission using a low Q Fabry-Perot LD

Keisuke Kasai, Takashi Kan, Masato Yoshida, Toshihiko Hirooka, Masataka Nakazawa

Research output: Contribution to journal › Article › peer-review

Abstract

We describe the broadband injection-locking performance of a Fabry-Perot laser diode (FP-LD) for digital coherent transmission. The dynamic locking bandwidth of the FP-LD was as wide as 28.8 GHz, which makes it possible to achieve precise carrier-phase synchronization with extremely low phase noise over a wide frequency range. By applying the FP-LD as an LO in an injection-locked homodyne receiver for digital coherent quadrature amplitude modulation (QAM) transmission, we demonstrate, for the first time, the precise demodulation of 3, 10 and 20 Gbaud 256 QAM signals even when using a widely and randomly phase-modulated transmitter laser. This is attributed to the excellent wideband dynamic injection-locking characteristics of the FP-LD.

Original language	English
Pages (from-to)	13345-13355
Number of pages	11
Journal	Optics Express
Volume	30
Issue number	8
DOIs	https://doi.org/10.1364/OE.456327
Publication status	Published - 2022 Apr 11

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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title = "Broadband injection-locked homodyne receiver for digital coherent transmission using a low Q Fabry-Perot LD",

abstract = "We describe the broadband injection-locking performance of a Fabry-Perot laser diode (FP-LD) for digital coherent transmission. The dynamic locking bandwidth of the FP-LD was as wide as 28.8 GHz, which makes it possible to achieve precise carrier-phase synchronization with extremely low phase noise over a wide frequency range. By applying the FP-LD as an LO in an injection-locked homodyne receiver for digital coherent quadrature amplitude modulation (QAM) transmission, we demonstrate, for the first time, the precise demodulation of 3, 10 and 20 Gbaud 256 QAM signals even when using a widely and randomly phase-modulated transmitter laser. This is attributed to the excellent wideband dynamic injection-locking characteristics of the FP-LD.",

author = "Keisuke Kasai and Takashi Kan and Masato Yoshida and Toshihiko Hirooka and Masataka Nakazawa",

note = "Funding Information: National Institute of Information and Communications Technology Japan (NICT207); Ministry of Internal Affairs and Communications Japan (JPMI00316, JPJ000254). Publisher Copyright: {\textcopyright} 2022 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement Journal {\textcopyright} 2022",

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T1 - Broadband injection-locked homodyne receiver for digital coherent transmission using a low Q Fabry-Perot LD

AU - Kasai, Keisuke

AU - Kan, Takashi

AU - Yoshida, Masato

AU - Hirooka, Toshihiko

AU - Nakazawa, Masataka

N1 - Funding Information: National Institute of Information and Communications Technology Japan (NICT207); Ministry of Internal Affairs and Communications Japan (JPMI00316, JPJ000254). Publisher Copyright: © 2022 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement Journal © 2022

PY - 2022/4/11

Y1 - 2022/4/11

N2 - We describe the broadband injection-locking performance of a Fabry-Perot laser diode (FP-LD) for digital coherent transmission. The dynamic locking bandwidth of the FP-LD was as wide as 28.8 GHz, which makes it possible to achieve precise carrier-phase synchronization with extremely low phase noise over a wide frequency range. By applying the FP-LD as an LO in an injection-locked homodyne receiver for digital coherent quadrature amplitude modulation (QAM) transmission, we demonstrate, for the first time, the precise demodulation of 3, 10 and 20 Gbaud 256 QAM signals even when using a widely and randomly phase-modulated transmitter laser. This is attributed to the excellent wideband dynamic injection-locking characteristics of the FP-LD.

AB - We describe the broadband injection-locking performance of a Fabry-Perot laser diode (FP-LD) for digital coherent transmission. The dynamic locking bandwidth of the FP-LD was as wide as 28.8 GHz, which makes it possible to achieve precise carrier-phase synchronization with extremely low phase noise over a wide frequency range. By applying the FP-LD as an LO in an injection-locked homodyne receiver for digital coherent quadrature amplitude modulation (QAM) transmission, we demonstrate, for the first time, the precise demodulation of 3, 10 and 20 Gbaud 256 QAM signals even when using a widely and randomly phase-modulated transmitter laser. This is attributed to the excellent wideband dynamic injection-locking characteristics of the FP-LD.

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Broadband injection-locked homodyne receiver for digital coherent transmission using a low Q Fabry-Perot LD

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