Search query: reflective semiconductor optical amplifier

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abstract: We experimentally explore and demonstrate the potential of a birefringent fiber loop (BFL) to compensate for the pattern effects (PE) induced in a reflective semiconductor optical amplifier (RSOA) which is driven by optical data whose intensity, temporal and spectral characteristics heavily stress the RSOA. By properly tailoring the BFL comb like profile and adjusting the relative offset between the BFL maximum transmission and carrier signal position, the BFL improves the RSOA pattern dependent performance even though the input pulses' modulation bandwidth exceeds the 3 dB cut off frequency of the RSOA optical response. The extensive set of obtained experimental results confirms the BFL capability to enhance the RSOA operation even under strong saturation, since the BFL acts in a beneficial manner on the amplified pulses by reducing their overshoot to an acceptable level, restoring their spectral position, reshaping their eye diagram and increasing their input power dynamic range. These notable improvements, combined with the construction from off the shelf components, straightforward implementation, simplicity of operation and flexibly tunable transmission characteristics, render the BFL an attractive solution for efficiently combating the RSOA PE and resolving its undesirable complications.
author_names: Kyriakos E Zoiros

Dimitrios Kastritsis

Thierry Rampone

Ammar Sharaiha
title: Reflective semiconductor optical amplifier pattern effect compensation with birefringent fiber loop
year: 2020

abstract: All optical two's complement generator for four bit binary numbers and single bit comparator is proposed and analysed using reflective semiconductor optical amplifier (RSOA) We use Soliton bits to implement the device and therefore, find application in long distance communication systems. The performance is analysed in terms of input output bit patterns, quality factor, pseudo eye diagram, relative eye opening and amplified spontaneous emission characteristics.
author_names: K Mukherjee

Kajal Maji

Ashif Raja
title: All optical four bit two's complement generator and single bit comparator using reflective semiconductor optical amplifier
year: 2020

abstract: Reflective semiconductor optical amplifiers (RSOAs) are versatile gain media that find applications in passive optical networks. Due to their double pass characteristics, they show better gain compared with ordinary semiconductor optical amplifiers, resulting in better switching performance. In this work, the RSOA based gain dynamics is utilized to design and analyze a parity checker and generator using soliton pulses. The results of MATLAB simulations at a rate of 200 Gbps show the practical feasibility of such gates. The effect of the amplified spontaneous emission noise on the performance of the logic gate is also investigated.
author_names: Kajal Maji

K Mukherjee

Ashif Raja

Jitendra Nath Roy
title: Numerical simulations of an all optical parity generator and checker utilizing a reflective semiconductor optical amplifier at 200 Gbps
year: 2020

abstract: In this chapter, we have analyzed and described all optical soliton based logic AND gate using refractive semiconductor optical amplifier (RSOA) We have used control signal and data signal as a soliton pulse. Input and output operations are also shown. We have found output extinction ratio, contrast ratio, relative eye opening, and quality factor and how they vary with control pulse energy for the optimization of the performance.
author_names: Kajal Maji

K Mukherjee

A Raja
title: Performance of All Optical Logic Soliton Based AND Gate Using Reflective Semiconductor Optical Amplifier (RSOA)
year: 2019

abstract: A new time domain wideband numerical model for simulation of quantum dot reflective semiconductor optical amplifier (QD RSOA) steady state and dynamic behavior, is described. The model is used to investigate 1 ps full width at half maximum input Gaussian pulse amplification and also modulation cancellation. A large modulation cancellation dynamic range of about 35 dB, is predicted for high input powers, which is not attainable in bulk and QW RSOAs. The model can be applied to traveling wave and reflective QD SOAs. The combination of the unique features of quantum dots and a reflective structure can be used to realize a colorless modulator for wavelength division multiplexed passive optical networks (WDM PONs)
author_names: Khalil Safari Anzabi

Amir Habibzadeh-Sharif

Michael J Connelly

Ali Rostami
title: Wideband Steady State and Pulse Propagation Modeling of a Reflective Quantum Dot Semiconductor Optical Amplifier
venue: Journal of Lightwave Technology
year: 2020

abstract: The feasibility of employing a birefringent fiber loop to enhance the performance of a directly modulated reflective semiconductor optical amplifier is experimentally demonstrated for the first time. The birefringent fiber loop acts as an optical filter of opposite slope than that of the reflective semiconductor optical amplifier electro optical response and counteracts the finite reflective semiconductor optical amplifier modulation bandwidth of only 0.89 GHz. By proper adjustment of its detuning, the birefringent fiber loop tailors the spectral components that physically manifest due to the reflective semiconductor optical amplifier dynamic perturbation subject to direct modulation in the saturated gain regime, and suppresses the pattern dependent distortions in the time domain. In this manner, the birefringent fiber loop manages to significantly improve the quality characteristics of the encoded signal at higher data rates than those enabled by the reflective semiconductor optical amplifier limited modulation capability. Owing to the birefringent fiber loop, the reflective semiconductor optical amplifier modulation range is extended to 4 Gb/s at the raw bit error rate of 1.0x10 9, and to 11 Gb/s at the forward error correction limit of 3.8x10 3. These results, which are unique against the evaluation criterion adopted in the first case, and the modulation speed achieved with post filtering schemes in the second, highlight the beneficial role that the birefringent fiber loop can play in supporting reflective semiconductor optical amplifier operation for intensity amplification and modulation purposes.
author_names: Zoe V Rizou

Kyriakos E Zoiros

Thierry Rampone

Ammar Sharaiha
title: Reflective Semiconductor Optical Amplifier Direct Modulation Capability Enhancement Using Birefringent Fiber Loop
year: 2020

abstract: All Optical Two's complement generator for four bit binary numbers is proposed and analyzed using reflective semiconductor optical amplifier (RSOA) We use Soliton bits to implement the device and therefore, find application in long distance communication systems. The performance is analyzed in terms of input output bit patterns, quality factor, pseudo eye diagram, relative eye opening and amplified spontaneous emission.
author_names: K Mukherjee

Kajal Maji

Ashif Raja
title: Design and performance analysis of all optical Soliton based 4 bit two's complement generator using Reflective Semiconductor Optical Amplifier
venue: 2019 Devices for Integrated Circuit (DevIC)
year: 2019

abstract: A dilute waveguide reflective semiconductor optical amplifier for alignment tolerant hybrid silicon photonics integration was demonstrated with emitting wavelength of $1.55\ \mu \mathrm{m} Far field divergence angle at fast diverge axis was 11.8deg compares to conventional waveguide of 28.2deg. The dilute waveguide demonstrated 45% alignment tolerance improvement with mode size of $84\ \mu \mathrm{m}{2}
author_names: Bowen Song

Youning Luo

Sergio Pinna

Yuan Liu

Jonathan Klamkin
title: Dilute Waveguide Reflective Semiconductor Optical Amplifier for 3D Hybrid Silicon Photonics Integration
venue: 2019 Compound Semiconductor Week (CSW)
year: 2019

abstract: We demonstrate the feasibility of using a single microring resonator (MRR) as optical notch filter for enabling the direct modulation of a reflective semiconductor optical amplifier (RSOA) at more than tripled data rate than possible with the RSOA alone. We conduct a thorough simulation analysis to investigate and assess the impact of critical operating parameters on defined performance metrics, and we specify how the former must be selected so that the latter can become acceptable. By using an MRR of appropriate radius and detuning, the RSOA modulation bandwidth, which we explicitly quantify, can be extended to overcome the RSOA pattern dependent performance limitations. Thus, the MRR makes the RSOA encoded signal exhibit improved characteristics that can be exploited in practical RSOA direct modulation applications.
author_names: Zoe V Rizou

Kyriakos E Zoiros
title: Theoretical Analysis of Directly Modulated Reflective Semiconductor Optical Amplifier Performance Enhancement by Microring Resonator Based Notch Filtering
year: 2018

author_names: Kajal Maji

K Mukherjee

Mrinal Kanti Mandal
title: Simulative Performance Analysis of All Optical Universal Logic TAND Gate Using Reflective Semiconductor Optical Amplifier (RSOA)
year: 2020