PPLN-Based Low-Noise Phase Sensitive Amplification Using an Optical Phase-Locked Pump

Takushi KAZAMA; Takeshi UMEKI; Yasuhiro OKAMURA; Koji ENBUTSU; Osamu TADANAGA; Atsushi TAKADA; Ryoichi KASAHARA

doi:10.1587/transcom.2019OBP0005

IEICE TRANSACTIONS on Communications

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PPLN-Based Low-Noise Phase Sensitive Amplification Using an Optical Phase-Locked Pump

Takushi KAZAMA, Takeshi UMEKI, Yasuhiro OKAMURA, Koji ENBUTSU, Osamu TADANAGA, Atsushi TAKADA, Ryoichi KASAHARA

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Summary :

We evaluated the noise properties of a periodically poled lithium niobite phase-sensitive amplifier (PSA) using a phase-locked local oscillator as a pump generated by an optical phase-locked loop (OPLL-LO). To examine whether or not the LO pump generated by an OPLL degrades the noise figure (NF) of the PSA, we compared the noise levels of a PSA using an OPLL-LO with that of one using a master local oscillator (M-LO) that utilizes the master light itself as a pump in the electrical domain. With the OPLL, the phase-locked local light had almost the same frequency noise components as the master light. We observed almost the same output noise spectra for the OPLL-LO PSA and M-LO PSA and confirmed the absence of excess noise components in the OPLL-LO PSA in the 0.1 to 20-GHz range. The OPLL-LO PSA exhibited low-noise amplification with an average NF of 1.7-dB at a 23.2-dB gain within an input power range of -31 to -21dBm, which is a feasible input power for repeater amplifiers used in the optical signal transmission systems. We also investigated the influence of the noisy master light, which emulates the accumulation of optical noise from the amplifiers in the transmission system. The OPLL-LO PSA was highly tolerant to the optical noise because the difference in the NF was negligibly small within a master light OSNR range of 5 to 55dB. These results indicate that the OPLL-LO PSA will be useful as a low-noise repeater amplifier for the spectrally efficient large-capacity photonic networks of the future.

Publication: IEICE TRANSACTIONS on Communications Vol.E103-B No.11 pp.1265-1271

Publication Date: 2020/11/01

Publicized: 2020/05/22

Online ISSN: 1745-1345

DOI: 10.1587/transcom.2019OBP0005

Type of Manuscript: Special Section PAPER (Joint Special Section on Opto-electronics and Communications for Future Optical Network)

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Authors

Takushi KAZAMA
  NTT Corporation
Takeshi UMEKI
  NTT Corporation
Yasuhiro OKAMURA
  Tokushima University
Koji ENBUTSU
  NTT Corporation
Osamu TADANAGA
  NTT Corporation
Atsushi TAKADA
  Tokushima University
Ryoichi KASAHARA
  NTT Corporation

Keyword

phase sensitive amplifier, periodically poled LiNbO₃ waveguide, noise figure

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Takushi KAZAMA, Takeshi UMEKI, Yasuhiro OKAMURA, Koji ENBUTSU, Osamu TADANAGA, Atsushi TAKADA, Ryoichi KASAHARA, "PPLN-Based Low-Noise Phase Sensitive Amplification Using an Optical Phase-Locked Pump" in IEICE TRANSACTIONS on Communications, vol. E103-B, no. 11, pp. 1265-1271, November 2020, doi: 10.1587/transcom.2019OBP0005.
Abstract: We evaluated the noise properties of a periodically poled lithium niobite phase-sensitive amplifier (PSA) using a phase-locked local oscillator as a pump generated by an optical phase-locked loop (OPLL-LO). To examine whether or not the LO pump generated by an OPLL degrades the noise figure (NF) of the PSA, we compared the noise levels of a PSA using an OPLL-LO with that of one using a master local oscillator (M-LO) that utilizes the master light itself as a pump in the electrical domain. With the OPLL, the phase-locked local light had almost the same frequency noise components as the master light. We observed almost the same output noise spectra for the OPLL-LO PSA and M-LO PSA and confirmed the absence of excess noise components in the OPLL-LO PSA in the 0.1 to 20-GHz range. The OPLL-LO PSA exhibited low-noise amplification with an average NF of 1.7-dB at a 23.2-dB gain within an input power range of -31 to -21dBm, which is a feasible input power for repeater amplifiers used in the optical signal transmission systems. We also investigated the influence of the noisy master light, which emulates the accumulation of optical noise from the amplifiers in the transmission system. The OPLL-LO PSA was highly tolerant to the optical noise because the difference in the NF was negligibly small within a master light OSNR range of 5 to 55dB. These results indicate that the OPLL-LO PSA will be useful as a low-noise repeater amplifier for the spectrally efficient large-capacity photonic networks of the future.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.2019OBP0005/_p

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@ARTICLE{e103-b_11_1265,
author={Takushi KAZAMA, Takeshi UMEKI, Yasuhiro OKAMURA, Koji ENBUTSU, Osamu TADANAGA, Atsushi TAKADA, Ryoichi KASAHARA, },
journal={IEICE TRANSACTIONS on Communications},
title={PPLN-Based Low-Noise Phase Sensitive Amplification Using an Optical Phase-Locked Pump},
year={2020},
volume={E103-B},
number={11},
pages={1265-1271},
abstract={We evaluated the noise properties of a periodically poled lithium niobite phase-sensitive amplifier (PSA) using a phase-locked local oscillator as a pump generated by an optical phase-locked loop (OPLL-LO). To examine whether or not the LO pump generated by an OPLL degrades the noise figure (NF) of the PSA, we compared the noise levels of a PSA using an OPLL-LO with that of one using a master local oscillator (M-LO) that utilizes the master light itself as a pump in the electrical domain. With the OPLL, the phase-locked local light had almost the same frequency noise components as the master light. We observed almost the same output noise spectra for the OPLL-LO PSA and M-LO PSA and confirmed the absence of excess noise components in the OPLL-LO PSA in the 0.1 to 20-GHz range. The OPLL-LO PSA exhibited low-noise amplification with an average NF of 1.7-dB at a 23.2-dB gain within an input power range of -31 to -21dBm, which is a feasible input power for repeater amplifiers used in the optical signal transmission systems. We also investigated the influence of the noisy master light, which emulates the accumulation of optical noise from the amplifiers in the transmission system. The OPLL-LO PSA was highly tolerant to the optical noise because the difference in the NF was negligibly small within a master light OSNR range of 5 to 55dB. These results indicate that the OPLL-LO PSA will be useful as a low-noise repeater amplifier for the spectrally efficient large-capacity photonic networks of the future.},
keywords={},
doi={10.1587/transcom.2019OBP0005},
ISSN={1745-1345},
month={November},}

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TY - JOUR
TI - PPLN-Based Low-Noise Phase Sensitive Amplification Using an Optical Phase-Locked Pump
T2 - IEICE TRANSACTIONS on Communications
SP - 1265
EP - 1271
AU - Takushi KAZAMA
AU - Takeshi UMEKI
AU - Yasuhiro OKAMURA
AU - Koji ENBUTSU
AU - Osamu TADANAGA
AU - Atsushi TAKADA
AU - Ryoichi KASAHARA
PY - 2020
DO - 10.1587/transcom.2019OBP0005
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E103-B
IS - 11
JA - IEICE TRANSACTIONS on Communications
Y1 - November 2020
AB - We evaluated the noise properties of a periodically poled lithium niobite phase-sensitive amplifier (PSA) using a phase-locked local oscillator as a pump generated by an optical phase-locked loop (OPLL-LO). To examine whether or not the LO pump generated by an OPLL degrades the noise figure (NF) of the PSA, we compared the noise levels of a PSA using an OPLL-LO with that of one using a master local oscillator (M-LO) that utilizes the master light itself as a pump in the electrical domain. With the OPLL, the phase-locked local light had almost the same frequency noise components as the master light. We observed almost the same output noise spectra for the OPLL-LO PSA and M-LO PSA and confirmed the absence of excess noise components in the OPLL-LO PSA in the 0.1 to 20-GHz range. The OPLL-LO PSA exhibited low-noise amplification with an average NF of 1.7-dB at a 23.2-dB gain within an input power range of -31 to -21dBm, which is a feasible input power for repeater amplifiers used in the optical signal transmission systems. We also investigated the influence of the noisy master light, which emulates the accumulation of optical noise from the amplifiers in the transmission system. The OPLL-LO PSA was highly tolerant to the optical noise because the difference in the NF was negligibly small within a master light OSNR range of 5 to 55dB. These results indicate that the OPLL-LO PSA will be useful as a low-noise repeater amplifier for the spectrally efficient large-capacity photonic networks of the future.
ER -

IEICE TRANSACTIONS on Communications