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".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
광해저케이블 전송시스템에서는 인라인 중계기의 소형화, 저소비전력, 높은 신뢰성이 요구된다. 인라인 중계기의 구조는 단순한 단일 스테이지이어야 한다. 인라인 중계기가 넓은 대역폭, 높은 출력 전력 및 낮은 잡음 지수를 달성하려면 EDF(에르븀 첨가 광섬유) 자체의 설계가 매우 중요합니다. 우리는 장거리 고용량 WDM 전송 시스템을 위한 고알루미나 공동 도핑 에르븀 도핑 광섬유 증폭기(EDFA)를 설계하고 개발했습니다. 우리는 EDF 길이를 최적화하기 위해 이득 평탄도와 출력 전력 사이의 균형 관계를 조사했습니다. 우리는 0.04nm에서 +1550dB/nm의 약간 기울어진 이득 평탄도, 4.7dB의 우수한 잡음 지수, 11.5-A를 사용하여 EDF 길이 5m에 대해 +1480dBm의 상대적으로 큰 출력 전력을 포함하는 고성능을 얻었습니다. nm 펌핑 레이저 다이오드. EDFA의 이득-파장 특성을 정확하게 보상하기 위해 다양한 FSR을 갖춘 Mach-Zehnder 유형 필터를 사용하는 이득 등화기(GEQ)를 적용했습니다. 주요 GEQ는 48nm의 자유 스펙트럼 범위(FSR)를 가지며, 이는 2nm EDFA 이득 피크와 1558nm EDFA 이득 밸리 사이의 파장 차이보다 약 1536배 더 깁니다. 위의 EDFA 및 GEQ가 포함된 순환 루프를 사용하여 넓은 파장 대역폭을 수행했습니다. 5,958km 전송 후 달성된 신호 파장 대역폭은 20nm였습니다. 700-Gbit/s(66)를 성공적으로 전송했습니다.
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Takao NAITO, Naomasa SHIMOJOH, Takafumi TERAHARA, Toshiki TANAKA, Terumi CHIKAMA, Masuo SUYAMA, "High Alumina Co-Doped Silica EDFA and Its Gain-Equalization in Long-Haul WDM Transmission System" in IEICE TRANSACTIONS on Communications,
vol. E83-B, no. 4, pp. 775-781, April 2000, doi: .
Abstract: In an optical submarine cable transmission system, small size, low consumption power, and high reliability are required for inline repeaters. The structure of the inline repeater should be a simple single stage. The design of erbium doped fiber (EDF) itself is very important for the inline repeater to achieve broad bandwidth, high output power, and low noise figure. We designed and developed high alumina co-doped erbium doped fiber amplifiers (EDFAs) for long-haul, high-capacity WDM transmission systems. We investigated the trade-off relationship between the gain flatness and the output power to optimize the EDF length. We obtained high performance, including a slightly sloped gain flatness of +0.04 dB/nm at 1550 nm, a superior noise figure of 4.7 dB, and a relatively large output power of +11.5 dBm for an EDF length of 5 m using a 1480-nm pumping laser diode. We applied gain-equalizers (GEQs) using Mach-Zehnder type filters with different FSRs to accurately compensate for the EDFAs ' gain-wavelength characteristics. The main GEQs have free-spectral-ranges (FSRs) of 48-nm, which are about 2 times as long as the wavelength difference between a 1558-nm EDFA gain peak and a 1536-nm EDFA gain valley. Using a circulating loop with the above EDFAs and GEQs, we performed the broad wavelength bandwidth. The achieved signal wavelength bandwidth after 5,958-km transmission was 20 nm. We successfully transmitted 700-Gbit/s (66
URL: https://global.ieice.org/en_transactions/communications/10.1587/e83-b_4_775/_p
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@ARTICLE{e83-b_4_775,
author={Takao NAITO, Naomasa SHIMOJOH, Takafumi TERAHARA, Toshiki TANAKA, Terumi CHIKAMA, Masuo SUYAMA, },
journal={IEICE TRANSACTIONS on Communications},
title={High Alumina Co-Doped Silica EDFA and Its Gain-Equalization in Long-Haul WDM Transmission System},
year={2000},
volume={E83-B},
number={4},
pages={775-781},
abstract={In an optical submarine cable transmission system, small size, low consumption power, and high reliability are required for inline repeaters. The structure of the inline repeater should be a simple single stage. The design of erbium doped fiber (EDF) itself is very important for the inline repeater to achieve broad bandwidth, high output power, and low noise figure. We designed and developed high alumina co-doped erbium doped fiber amplifiers (EDFAs) for long-haul, high-capacity WDM transmission systems. We investigated the trade-off relationship between the gain flatness and the output power to optimize the EDF length. We obtained high performance, including a slightly sloped gain flatness of +0.04 dB/nm at 1550 nm, a superior noise figure of 4.7 dB, and a relatively large output power of +11.5 dBm for an EDF length of 5 m using a 1480-nm pumping laser diode. We applied gain-equalizers (GEQs) using Mach-Zehnder type filters with different FSRs to accurately compensate for the EDFAs ' gain-wavelength characteristics. The main GEQs have free-spectral-ranges (FSRs) of 48-nm, which are about 2 times as long as the wavelength difference between a 1558-nm EDFA gain peak and a 1536-nm EDFA gain valley. Using a circulating loop with the above EDFAs and GEQs, we performed the broad wavelength bandwidth. The achieved signal wavelength bandwidth after 5,958-km transmission was 20 nm. We successfully transmitted 700-Gbit/s (66
keywords={},
doi={},
ISSN={},
month={April},}
부
TY - JOUR
TI - High Alumina Co-Doped Silica EDFA and Its Gain-Equalization in Long-Haul WDM Transmission System
T2 - IEICE TRANSACTIONS on Communications
SP - 775
EP - 781
AU - Takao NAITO
AU - Naomasa SHIMOJOH
AU - Takafumi TERAHARA
AU - Toshiki TANAKA
AU - Terumi CHIKAMA
AU - Masuo SUYAMA
PY - 2000
DO -
JO - IEICE TRANSACTIONS on Communications
SN -
VL - E83-B
IS - 4
JA - IEICE TRANSACTIONS on Communications
Y1 - April 2000
AB - In an optical submarine cable transmission system, small size, low consumption power, and high reliability are required for inline repeaters. The structure of the inline repeater should be a simple single stage. The design of erbium doped fiber (EDF) itself is very important for the inline repeater to achieve broad bandwidth, high output power, and low noise figure. We designed and developed high alumina co-doped erbium doped fiber amplifiers (EDFAs) for long-haul, high-capacity WDM transmission systems. We investigated the trade-off relationship between the gain flatness and the output power to optimize the EDF length. We obtained high performance, including a slightly sloped gain flatness of +0.04 dB/nm at 1550 nm, a superior noise figure of 4.7 dB, and a relatively large output power of +11.5 dBm for an EDF length of 5 m using a 1480-nm pumping laser diode. We applied gain-equalizers (GEQs) using Mach-Zehnder type filters with different FSRs to accurately compensate for the EDFAs ' gain-wavelength characteristics. The main GEQs have free-spectral-ranges (FSRs) of 48-nm, which are about 2 times as long as the wavelength difference between a 1558-nm EDFA gain peak and a 1536-nm EDFA gain valley. Using a circulating loop with the above EDFAs and GEQs, we performed the broad wavelength bandwidth. The achieved signal wavelength bandwidth after 5,958-km transmission was 20 nm. We successfully transmitted 700-Gbit/s (66
ER -