Results 101 to 110 of about 204 (154)

Highly-nonlinear RSOA RIN compression

2014 19th European Conference on Networks and Optical Communications - (NOC), 2014
It has been recently experimentally and theoretically demonstrated that three nonlinear operation regimes can be observed in reflective semiconductor amplifiers in relation to gain saturation and, consequently, in relation to the bleaching of the modulation portion of the injected signal while the injected power increases.
MARAZZI, LUCIA, PAROLARI, PAOLA, BOLETTI, ANNA, GATTO, ALBERTO, MARTINELLI, MARIO, Brenot, Romain   +5 more
openaire   +4 more sources

Comparison of LED and RSOA performance in WDM-PONs

2014 21st International Conference on Telecommunications (ICT), 2014
Currently there is an significant effort by system operators to deploy cost effective Passive Optical Networks (PON). In this way, next generation PON is the subject of studies by researchers and system designers. Among them, Wavelength Division Multiplexing in Passive Optical Networks (WDM-PON) are of particular interest once they can provide larger ...
Luiz Fernando Henning, Paulo P. Monteiro, Alexandre de Almeida Prado Pohl   +2 more
openaire   +1 more source

Reflection tolerance of RSOA-based WDM PON

OFC/NFOEC 2008 - 2008 Conference on Optical Fiber Communication/National Fiber Optic Engineers Conference, 2008
We investigate the effects of back-reflection in RSOA-based WDM PON utilizing the remodulation technique. The downstream signal is likely to have severe reflection tolerance (-42 ~ -35 dB), which highly depends on the RSOA gain.
Y., J. Lee, K., Y. Cho, A., Murakami, A., Agata, Y., Takushima, Y., C. Chung   +5 more
openaire   +1 more source

S-band RSOAs for WDM PONs

Optical Fiber Communication Conference and National Fiber Optic Engineers Conference, 2009
We report on a polarisation independent S-band RSOA for WDM-PON applications for the first time. Operation at 1.25Gbit/s over the entire S-band is demonstrated in TO-packaged devices with a path loss capability of ≫25dB.
Karagianopoulos, S., Kelly, A.E., Tombling, C., Madden, W.I., Michie, C., Andonovic, I.   +5 more
openaire   +2 more sources

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

Analysis of nonlinear effects in RSOA-based OFDM-PON

SPIE Proceedings, 2011
In this paper, a numerical investigation on the nonlinear distortion of OFDM (Orthogonal Frequency Division Multiplexed) signals caused by RSOA (Reflective Semiconductor Optical Amplifier) as an intensity modulator in OFDM-PON system is undertaken. Based on curve fitting approach a fourth order polynomial is, for the first time, used to present the ...
Xiaochuan Guo, Rujian Lin, Yin Tan, Shujia Zhou, Jian Zhang   +4 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

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

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

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