scholarly journals Two-Mode Biomedical Sensor Build-up: Characterization of Optical Amplifier

2022 ◽  
Vol 70 (3) ◽  
pp. 5487-5489
Author(s):  
Usman Masud ◽  
Fathe Jeribi ◽  
Mohammed Alhameed ◽  
Faraz Akram ◽  
Ali Tahir ◽  
...  
Keyword(s):  
Optical Amplifier ◽  
Biomedical Sensor

Optimum Design and Characterization of Rare Earth-Doped Fibre Amplifiers by Means of Particle Swarm Optimization Approach

2012 ◽  
pp. 127-147 ◽  
Author(s):  
Girolamo Fornarelli ◽  
Antonio Giaquinto ◽  
Luciano Mescia
Keyword(s):  
Particle Swarm Optimization ◽  
Optical Fibre ◽  
Fibre Length ◽  
Particle Swarm ◽  
Optical Amplifier ◽  
Optimization Approach ◽  
Swarm Optimization ◽  
Design And Optimization ◽  
Fibre Amplifiers

The rapid increasing of internet services requires communication capacity of optical fibre networks. Such a task can be carried out by Er3+-doped fibre amplifiers, which allow to overcome limits of unrelayed communication distances. The development of efficient numerical codes provides an accurate understanding of the optical amplifier behaviour and reliable qualitative and quantitative predictions of the amplifier performance in a large variety of configurations. Therefore, the design and optimization of the optical fibre can benefit of this important tool. This chapter proposes an approach based on the Particle Swarm Optimization (PSO) for the optimal design and the characterization of a photonic crystal fibre amplifier. Such approach is employed to find the optimal parameters maximizing the gain of the amplifier. The comparison with respect to a conventional algorithm shows that the proposed solution provides accurate results. Subsequently, the presented method is used to study the amplifier behaviour by evaluating the curves of optimal fibre length, erbium concentration, gain, and pumping configuration. Finally, the PSO based algorithm is exploited to determine the upconversion parameters corresponding to a desired value of gain. This application is particularly intriguing since it allows recovery of the values of parameters of the optical amplifier, which cannot be directly measured.

scholarly journals Static Characterization of the Birefringence Effect in the Semiconductor Optical Amplifier Using the Finite Difference Method

2015 ◽  
Vol 5 (1) ◽  
pp. 38
Author(s):  
A. Elyamani ◽  
A. Zatni ◽  
H. Bousseta ◽  
A. Moumen
Keyword(s):  
Numerical Model ◽  
Semiconductor Optical Amplifier ◽  
Optical Power ◽  
Optical Amplifier ◽  
Input Power ◽  
Geometrical Parameters ◽  
Saturated Gain ◽  
Birefringence Effect ◽  
The Impact

Knowing the various physical mechanisms of the semiconductor optical amplifier (SOA) helps us to develop a more complete numerical model. It also enables us to simulate more realistically the static behavior of the SOA<sub>s</sub>’ birefringence effect. This way, it allows us to study more precisely the behavior of SOA<sub>s</sub>, and particularly the impact of the amplified spontaneous emission (ASE) or the pump and probe signals as well as the optical functions based on the non-linearity of the component. In static regime, the SOA<sub>s</sub> possess a very low amplification threshold and a saturation power of the gain which mainly depends on the optical power injected into the active region. Beyond the optical input power, the SOA is in the saturated gain regime which gives it a nonlinear transmission behavior. Our detailed numerical model offers a set of equations and an algorithm that predict their behavior. The equations form a theoretical base from which we have coded our model in several files.cpp that the <strong>Language C++</strong> executes. It has enabled us, from the physical and geometrical parameters of the component, to recover all the relevant values ​​for a comprehensive study of SOA<sub>s</sub> in static and dynamic regimes. In this paper, we propose to make a static characterization of the effect of the nonlinear polarization rotation by realizing a pump-probe assemblage to control the power and state of polarization at the entering of the SOA.

Characterization of Carbon Nanotubes and Its Application in Biomedical Sensor for Prostate Cancer Detection

2019 ◽  
Vol 17 (1) ◽  
pp. 17-24 ◽  
Author(s):  
Argha Sarkar ◽  
Santanu Maity ◽  
Pinaki Chakraborty ◽  
Swarnendu Kumar Chakraborty
Keyword(s):  
Prostate Cancer ◽  
Carbon Nanotubes ◽  
Cancer Detection ◽  
Prostate Cancer Detection ◽  
Biomedical Sensor

scholarly journals Fabrication and Characterization of a High-Gain Yb-Er Codoped Phosphate Glass Optical Amplifier

2013 ◽  
Vol 2013 ◽  
pp. 1-4 ◽  
Author(s):  
Gerardo Cristian Scarpignato ◽  
Daniel Milanese ◽  
Joris Lousteau ◽  
Nadia Giovanna Boetti ◽  
Emanuele Mura
Keyword(s):  
Pump Power ◽  
Phosphate Glass ◽  
Fiber Amplifier ◽  
Optical Amplifier ◽  
High Gain ◽  
Phosphate Glasses ◽  
Internal Gain ◽  
Fabrication And Characterization ◽  
Short Core

We present the fabrication and characterization of a short core pumped fiber amplifier made of Yb3+-Er3+codoped phosphate glasses. The 27 mm long amplifier provides a maximum internal gain of 10.7 dB for a signal of −30 dBm at 1535 nm with a 479 mW pump power operating at 975.6 nm. This leads to a gain of 4.0 dB/cm, which compares favorably to other recent works.

Development and characterization of thermal responsivehydrogel films for biomedical sensor application

2018 ◽  
Vol 5 (4) ◽  
pp. 045703 ◽  
Author(s):  
Jesús Eduardo López-Barriguete ◽  
Takashi Isoshima ◽  
Emilio Bucio
Keyword(s):  
Sensor Application ◽  
Biomedical Sensor

Preparation and characterization of SiO2-ZrO2:Er3+/Yb3+ planar waveguides for optical amplifier

2010 ◽  
Author(s):  
N. Iznie Razaki ◽  
U. Sarah Jais ◽  
A. Chiasera ◽  
M. Ferrari ◽  
M. Kamil Abd-Rahman
Keyword(s):  
Optical Amplifier ◽  
Planar Waveguides

Silicon photonics WDM transmitter with single section semiconductor mode-locked laser

2015 ◽  
Vol 4 (2) ◽  
Author(s):  
Juliana Müller ◽  
Johannes Hauck ◽  
Bin Shen ◽  
Sebastian Romero-García ◽  
Elmira Islamova ◽  
...  
Keyword(s):  
Silicon Photonics ◽  
Transfer Functions ◽  
Power Level ◽  
Optical Amplifier ◽  
Excess Noise ◽  
Output Power Level ◽  
Transient Effects ◽  
Single Section ◽  
Mode Locked Laser

AbstractWe demonstrate a wavelength domain-multiplexed (WDM) optical link relying on a single section semiconductor mode-locked laser (SS-MLL) with quantum dash (Q-Dash) gain material to generate 25 optical carriers spaced by 60.8 GHz, as well as silicon photonics (SiP) resonant ring modulators (RRMs) to modulate individual optical channels. The link requires optical reamplification provided by an erbium-doped fiber amplifier (EDFA) in the system experiments reported here. Open eye diagrams with signal quality factors (Q-factors) above 7 are measured with a commercial receiver (Rx). For higher compactness and cost effectiveness, reamplification of the modulated channels with a semiconductor optical amplifier (SOA) operated in the linear regime is highly desirable. System and device characterization indicate compatibility with the latter. While we expect channel counts to be primarily limited by the saturation output power level of the SOA, we estimate a single SOA to support more than eight channels. Prior to describing the system experiments, component design and detailed characterization results are reported including design and characterization of RRMs, ring-based resonant optical add-drop multiplexers (RR-OADMs) and thermal tuners, S-parameters resulting from the interoperation of RRMs and RR-OADMs, and characterization of Q-Dash SS-MLLs reamplified with a commercial SOA. Particular emphasis is placed on peaking effects in the transfer functions of RRMs and RR-OADMs resulting from transient effects in the optical domain, as well as on the characterization of SS-MLLs in regard to relative intensity noise (RIN), stability of the modes of operation, and excess noise after reamplification.

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