Results 1 to 10 of about 2,100 (183)

Switchable Ultra-Wideband All-Optical Quantum Dot Reflective Semiconductor Optical Amplifier [PDF]

open access: yesNanomaterials, 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

Hybrid external-cavity lasers (ECL) using photonic wire bonds as coupling elements [PDF]

open access: yesScientific Reports, 2021
Combining semiconductor optical amplifiers (SOA) on direct-bandgap III–V substrates with low-loss silicon or silicon-nitride photonic integrated circuits (PIC) has been key to chip-scale external-cavity lasers (ECL) that offer wideband tunability along ...
Yilin Xu   +14 more
doaj   +2 more sources

Polarization-Discriminated RSOA–EAM for Colorless Transmitter in WDM–PON [PDF]

open access: yesApplied 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   +2 more sources

Off-set Filtering Effect in SOA Based Optical Access Network [PDF]

open access: yesRadioengineering, 2016
In-line and reflective semiconductor optical amplifiers (SOA and RSOA) can be effectively utilized as external optical intensity modulators. However the limited modulation bandwidth affects the application possibilities, because next generation access ...
E. Udvary
doaj   +4 more sources

Advances in Semiconductor Optical Amplifier Technologies for All-Optical Logic Gate Implementations: A Comprehensive Review [PDF]

open access: yesNanomaterials
Semiconductor 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
doaj   +2 more sources

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

open access: yesJournal 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

Self-Seeded RSOA-Fiber Cavity Lasers vs. ASE Spectrum-Sliced or Externally Seeded Transmitters—A Comparative Study

open access: yesApplied 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-
Romain Bonjour   +2 more
exaly   +3 more sources

Interferometric Crosstalk Reduction in an RSOA-Based WDM Passive Optical Network [PDF]

open access: yesJournal of Lightwave Technology, 2009
Reflection and Rayleigh backscattering-induced interferometric crosstalk in a link employing a reflective semiconductor optical amplifier (RSOA) may cause significant power penalty and, thus, limit the performance of the system. In this paper, we investigate interferometric crosstalk suppression in a centralized light generation wavelength division ...
Gd Khoe
exaly   +2 more sources

RSOA Intensity Modulator Frequency Chirp-Enhanced Optical OFDM PON Performance

open access: yesIEEE Photonics Journal, 2015
A reflective semiconductor optical amplifier intensity modulator (RSOA-IM) frequency chirp considerably increases the system frequency response of an intensity-modulation and direct-detection (IMDD) PON system over the passband signal spectral region ...
B. Y. Cao   +5 more
doaj   +2 more sources

On Optically Modulated Reflective Semiconductor Optical Amplifier Pattern-Dependent Overshoot Mitigation Using a Birefringent Fiber Loop

open access: yesPhotonics, 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

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