The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
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The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
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Nous avons évalué les propriétés de bruit d'un amplificateur sensible à la phase (PSA) au niobite de lithium à polarisation périodique en utilisant un oscillateur local à verrouillage de phase comme pompe générée par une boucle optique à verrouillage de phase (OPLL-LO). Pour examiner si la pompe LO générée par un OPLL dégrade ou non le facteur de bruit (NF) du PSA, nous avons comparé les niveaux de bruit d'un PSA utilisant un OPLL-LO avec celui d'un PSA utilisant un oscillateur local maître (M-LO). qui utilise la lumière principale elle-même comme pompe dans le domaine électrique. Avec l'OPLL, la lumière locale à verrouillage de phase avait presque les mêmes composantes de bruit de fréquence que la lumière principale. Nous avons observé presque les mêmes spectres de bruit de sortie pour les PSA OPLL-LO et M-LO et confirmé l'absence de composants de bruit excessifs dans le PSA OPLL-LO dans la plage de 0.1 à 20 GHz. Le PSA OPLL-LO présentait une amplification à faible bruit avec un NF moyen de 1.7 dB avec un gain de 23.2 dB dans une plage de puissance d'entrée de -31 à -21 dBm, ce qui constitue une puissance d'entrée réalisable pour les amplificateurs répéteurs utilisés dans le signal optique. systèmes de transmission. Nous avons également étudié l'influence de la lumière principale bruyante, qui émule l'accumulation de bruit optique provenant des amplificateurs du système de transmission. Le PSA OPLL-LO était très tolérant au bruit optique car la différence de NF était négligeable dans une plage OSNR de lumière principale de 5 à 55 dB. Ces résultats indiquent que le PSA OPLL-LO sera utile en tant qu'amplificateur répéteur à faible bruit pour les réseaux photoniques à grande capacité spectralement efficaces du futur.
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
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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 -