Results 1 to 10 of about 204 (154)
Switchable Ultra-Wideband All-Optical Quantum Dot Reflective Semiconductor Optical Amplifier [PDF]
Nanomaterials, 2023 A comprehensive study has been conducted on ultra-broadband optically pumped quantum dot (QD) reflective semiconductor optical amplifiers (QD-RSOAs). Furthermore, little work has been done on broadband QD-RSOAs with an optical pump.
Farshad Serat Nahaei +4 more
doaj +2 more sources
Applied Sciences (Switzerland), 2015 Reflective semiconductor optical amplifier fiber cavity lasers (RSOA-FCLs) are appealing, colorless, self-seeded, self-tuning and cost-efficient upstream transmitters. They are of interest for wavelength division multiplexed passive optical networks (WDM-
Lucia Marazzi +2 more
exaly +3 more sources
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 ...
Byoung-Whi Kim
exaly +2 more sources
Applied Sciences (Switzerland), 2017 We present a comparative study of the capacity increase brought by bit- and power-loading discrete multi-tone (DMT) modulation for low-cost colorless transmitters.
Romain Bonjour +2 more
exaly +3 more sources
Photonics, 2022 Reflective semiconductor optical amplifiers (RSOAs) are key elements for modern optical communications. Despite their widespread deployment, their performance when intended for ultrafast data amplification is limited by their inherently slow gain ...
Nikolaos Avgenos +2 more
doaj +1 more source
Research on the modulation format of 40Gb/s WDM-PON system [PDF]
MATEC Web of Conferences, 2022 In order to meet the transmission needs of WDM-PON system, a WDM-PON full-duplex system based on reflective semiconductor optical amplifier (RSOA) remodulation was constructed in this paper.
Wang Yilin, Zhang Chunlei
doaj +1 more source
Polarization-Discriminated RSOA–EAM for Colorless Transmitter in WDM–PON
Applied Sciences, 2020 The integrated reflective semiconductor optical amplifier (RSOA) and electro-absorption modulator (EAM) is viewed as an appealing solution to the colorless transmitter on the optical network unit (ONU) side of wavelength-division multiplexed (WDM ...
Chengliang Zuo, Xun Li
doaj +1 more source
Distinctions in source regions and formation mechanisms of secondary aerosol in Beijing from summer to winter [PDF]
Atmospheric Chemistry and Physics, 2019 To investigate the sources and evolution of haze pollution in different seasons, long-term (from 15 August to 4 December 2015) variations in chemical composition of PM1 were characterized in Beijing, China.
J. Duan +34 more
doaj +1 more source
Photonics, 2022 Reflective Semiconductor Optical Amplifiers (RSOAs) are essential devices for the development of new generation networks that rely on the convergence of optical and RF communications.
Fokion N. Karadimoglou +3 more
doaj +1 more source
IEEE Photonics Journal, 2015 In this investigation, we propose and demonstrate a stable and wavelength-tunable self-injected reflective semiconductor optical amplifier (RSOA)-based laser by using the Faraday rotator mirror (FRM) and the fiber mirror (FM) serving as a reflected ...
Yu-Fu Wu +4 more
doaj +1 more source