Enhancing the SNR of BOTDR by gain-switched modulation

Q Bai, B Xue, H Gu, D Wang, Y Wang… - IEEE Photonics …, 2018 - ieeexplore.ieee.org
A scheme utilizing gain-switched modulation to enhance the signal-to-noise ratio (SNR) of
Brillouin optical time domain reflectometer (BOTDR) is proposed and evaluated. The …

Theoretical analysis of directly modulated reflective semiconductor optical amplifier performance enhancement by microring resonator-based notch filtering

ZV Rizou, KE Zoiros - Applied Sciences, 2018 - mdpi.com
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) …

Reflective semiconductor optical amplifier direct modulation capability enhancement using birefringent fiber loop

ZV Rizou, KE Zoiros, T Rampone, A Sharaiha - Applied Sciences, 2020 - mdpi.com
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 …

Performance analysis and improvement of semiconductor optical amplifier direct modulation with assistance of microring resonator notch filter

ZV Rizou, KE Zoiros - Optical and Quantum Electronics, 2017 - Springer
We demonstrate through numerical simulations that a passive single-bus microring
resonator (MRR) employed as notch filter enables to directly modulate an ordinary …

Chirp characterization of SOAs under sub-nanosecond electro-optical switching using heterodyne signal post-processing

T Sutili, M Rodigheri, CM Gallep, E Conforti - Optics Communications, 2021 - Elsevier
A technique to characterize amplitude distortions and optical carrier frequency variations
(chirp) using optical heterodyne reception and data post-processing is presented …

Performance analysis of a directly modulated semiconductor optical amplifiers using non‐return‐to‐zero, duobinary and quaternary pulse amplitude modulation …

R Gutiérrez‐Castrejón, O Fernández‐Segura… - IET …, 2021 - Wiley Online Library
Numerical investigation was done for the response of two semiconductor optical amplifiers
(SOA) to direct modulation using three of the most commonly employed intensity modulation …

Simulation of directly modulated RSOA

G Stathi, ZV Rizou, KE Zoiros - 2017 International Conference …, 2017 - ieeexplore.ieee.org
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 …

Exploiting inductive peaking for enhancing the RSOA's large-signal modulation performance

J Babić, A Totović, J Crnjanski, M Krstić… - Journal of Lightwave …, 2021 - opg.optica.org
This manuscript tackles the issue of circuit parasitics of reflective semiconductor optical
amplifiers (RSOAs), which has been often identified as the main culprit for their relatively …

Optical-Frequency-Comb Generation Based on Single-Tone Modulation and Four-Wave Mixing Effect in One Single Semiconductor Optical Amplifier

Z Tan, L Huang - Photonics, 2022 - mdpi.com
We propose a novel optical-frequency-comb (OFC) generation scheme based on single-
tone modulation and the four-wave mixing (FWM) effect in one single semiconductor optical …

Improving SOA direct modulation capability with optical filtering

ZV Rizou, KE Zoiros, P Morel - 2016 18th International …, 2016 - ieeexplore.ieee.org
Semiconductor optical amplifiers (SOAs) have been receiving intense interest for use as
external modulators in a variety of fundamental and advanced applications. However the …