Results 101 to 110 of about 936 (145)

Enhancement of power budget in RSOA based loop-back type WDM-PON by using the cascaded RSOAs

2010 12th International Conference on Transparent Optical Networks, 2010
In the RSOA based remodulation WDM-PON link, the quality of the upstream performance largely depends on the downstream, such as downstream ER and the received optical power, which directly connected to the link power budget. By cascading RSOAs in the ONU, aforementioned link design constraints were alleviated; the link power budget can be increased by ...
Jie Hyun Lee, Seung-Hyun Cho, Youn Seon Jang, Sang-Soo Lee   +3 more
openaire   +1 more source

Research on characterization of frequency chirp in RSOA

Chinese Optics Letters, 2013
Light chirp is a major issue in optical fiber links. This letter deals with precise characterizations of the frequency chirp parameters of reflective semiconductor optical amplifiers (RSOAs). The RSOA chirp properties are represented by transient and adiabatic chirps, whose parameters are characterized utilizing a ratio between the phase and the ...
Junfang Shang Junfang Shang, Jian Chen Jian Chen, Rujian Lin Rujian Lin, Yingxiong Song Yingxiong Song, Yingchun Li Yingchun Li   +4 more
openaire   +1 more source

Simulation of directly modulated RSOA

2017 International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD), 2017
We apply a reduced but efficient model to simulate the operation of a directly modulated reflective semiconductor optical amplifier (RSOA). The numerical results allow us to investigate and assess how the RSOA responds to different data modulation rates and show trends for acceptable performance.
G. Stathi, Z. V. Rizou, K. E. Zoiros
exaly   +2 more sources

Dispersion and off-set filtering in RSOA based networks

2016 18th International Conference on Transparent Optical Networks (ICTON), 2016
Next-generation access networks (NGANs) mainly include wavelength division multiplexing (WDM) based 60GHz Radio over Fibre systems (60G-RoF) and WDM Passive Optical Networks (WDM-PONs). Semiconductor optical amplifier may be the key device of colorless unit in these WDM based systems. The device can be effectively utilized as external modulator because
Eszter Udvary, Ágoston Schranz, Balázs Matolcsy   +2 more
openaire   +1 more source

RSOA as a sawtooth generator for Rayleigh Backscattering effect mitigation

36th European Conference and Exhibition on Optical Communication, 2010
Sawtooth signal at 2.5GHz has been obtained with an RSOA of 1GHz bandwidth. A measured wavelength shifting of 2.5GHz, obtained with the RSOA chirp induced phase modulation, allows 5dB Rayleigh Backscattering effect mitigation.
Omella M., Chanclou P., Lazaro J.A., Prat J.   +3 more
openaire   +1 more source

Design Issues in RSOA-based WDM PON

2008 IEEE PhotonicsGlobal@Singapore, 2008
We review some issues critical for the design of the wavelength-division-multiplexed passive optical network (WDM PON) implemented by using reflective semiconductor optical amplifiers (RSOAs), including the uncooled operation of RSOAs, the remodulation noise, the reflectionn of SOAs,and the limited modulation bandwidth of RSOAs.
Y. Takushima, K. Y. Cho, Y. C. Chung
openaire   +1 more source

RSOA-Based Wavelength-Reuse Gigabit WDM-PON [PDF]

Journal of the Optical Society of Korea, 2008
This article presents the RSOA-based re-modulation schemes for practical application to the WDM-PON link. Emphasis is put on the three methods for reducing the residual downstream signal in the upstream transmission; the simplest one is to use the RSOA gain-saturation property, the second uses selective filtering of the adiabatic-chirped DFB-LD output ...
exaly   +2 more sources

Modeling and simulation of RSOA with a dual‐electrode configuration

Microwave and Optical Technology Letters, 2017
AbstractBased on the physical model of a bulk reflective semiconductor optical amplifier (RSOA) used as a modulator in radio over fiber (RoF) links, the distributions of carrier density, signal photon density, and amplified spontaneous emission photon density are demonstrated. One of limits in the use of RSOA is the lower link gain when compared with a
Zhansheng Liu, Qingdian Wu, Hongji Wang, Manuel Alberto Violas, Guilhem de Valicourt   +4 more
openaire   +1 more source

All-optical wavelength conversion in GC-RSOA

ICTC 2011, 2011
We propose a new all-optical wavelength conversion technique based on cross gain modulation (XGM) in gain clamped reflective semiconductor optical amplifier (GC-RSOA). The proposed technique uses the seed light reflected from the FBG as probe signal, thereby avoiding the need of an external seed source for wavelength conversion.
Madhan Thollabandi, Soo-Yong Jung, Chang-Soo Park   +2 more
openaire   +1 more source

Performance of Self-Seeded RSOAs in WDM-PONs

CLEO: 2013, 2013
We present a detailed performance investigation of self-seeded RSOAs in WDM-PONs. The influences of several system parameters on the transmission performance are examined, including signal extinction ratio, stable seeding power, and features of the wavelength multiplexer.
Fei Xiong, Wen-De Zhong
openaire   +1 more source