Results 61 to 70 of about 936 (145)
, 2017 본 발명은 극성 제로 복귀(Polar RZ) 변조 방법을 이용하여 반사형 반도체 광증폭기를 초고속으로 동작시킬 수 있고, 송신단에서 진폭 변조 신호를 생성할 때 새롭게 제안된 극성 제로 복귀 신호 생성기를 사용하여 상하로 완전히 대칭적인 신호를 생성하여 변조 대역폭이 제한된 반사형 반도체 광증폭기(RSOA)를 초고속으로 동작시킬 수 있으며, RSOA를 기반으로 하는 광가입자망에서 변조 대역폭이 좁은 저가의 RSOA를 이용하여 초고속 진폭 변조 신호를 ...
심현규, 정윤철, 김훈
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Frequency agile photonic integrated external cavity laser
APL PhotonicsRecent advances in the development of ultra-low loss silicon nitride integrated photonic circuits have heralded a new generation of integrated lasers capable of reaching fiber laser coherence.
Grigory Lihachev +12 more
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Digital predistortion for RSOAs as external modulators in radio over fiber systems
Optics Express, 2011 Reflective semiconductor optical amplifiers (RSOAs) can be used as external modulators in radio over fiber (RoF) links due to their amplification and modulation characteristics and colorless property. The nonlinear distortion of RSOA, however, limits its dynamic range. In this paper we demonstrate digital predistortion (DPD) linearization techniques to
Zhansheng, Liu +2 more
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10-Gb/s transmission over 20-km single fiber link using 1-GHz RSOA by discrete multitone with multiple access [PDF]
, 2011 We demonstrate a novel 10Gb/s 20km single fiber transmission link based on a remotely fed 1GHz-bandwidth-limited RSOA. Adaptive loading with discrete multitone was applied. We also report flexible-bandwidth-allocated multiple access based on the proposed
J-M. Joo +12 more
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Experimental evaluation of burst-mode operation of a RSOA-based self-seeded transmitter
, 2014 We experimentally evaluate burst-mode operation of an RSOA-based self-seeded transmitter at 2.5 Gb/s by recognizing, during the cavity build-up, different evolution of the optical power, which reaches steady-state faster than the spectrum.
BRUNERO, MARCO +11 more
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Journal of Microwaves, Optoelectronics and Electromagnetic ApplicationsWDM-PON has been considered a promising solution for future fronthaul links concerning new mobile networks applications. However, in order to avoid inventory problems and reduce operation costs, there is a need for colorless sources, where the same basic
Adelcio M. Souza +3 more
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Analytic Study of the Modulation Response of Reflective Semiconductor Optical Amplifiers [PDF]
, 2015 We study themodulation response of a reflective semiconductor optical amplifier (RSOA) operated by directly modulating its injection current. We derive an analytic expression for the 3 dB modulation bandwidth, and characterize its dependence on the main ...
SANTAGIUSTINA, MARCO +3 more
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Cost-effective transceiver based on an RSOA and a VCSEL for flexible uDWDM networks
, 2016 A cost-effective transceiver for a 1-Gb/s full-duplex ultra-dense wavelength division multiplexing optical link is proposed for flexible metro-access and 5G networks.
Izquierdo, David +7 more
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Guangtongxin yanjiu, 2019 为弥补传统无线网络在射频链路难以到达的地方信号接收困难的问题,采用了将光载无线通信（RoF）技术作为一种无线接入方式与正交频分复用（OFDM）无源光网络（PON）有线接入网络相结合的方式,提出了一种基于外调制法单边带（SSB）调制方式承载60 GHz毫米波结合反射式半导体光放大器（RSOA）的有线与无线结合的双向传输系统,并完成了平台的搭建。在此基础上完成了理论分析和实验验证,通过仿真软件Optisystem,对基于RSOA的双向有线及无线混合接入系统背靠背以及光纤传输20 ...
赵钢明, 张春蕾, 张晨希
doaj
NanomaterialsSemiconductor optical amplifiers (SOAs) are central to the development of ultrafast, low-power all-optical signal processing systems. Their strong nonlinear response, compact size, and compatibility with photonic integration platforms make them key ...
Jiali Cui, Kyriakos E. Zoiros, Amer Kotb
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