Gain and noise figure performance of an EDFA pumped at 980 nm or 1480 nm for DOFSs

Malakzadeh, Abdollah; Pashaie, Rasoul; Mansoursamaei, Mohsen

doi:10.1007/s11082-019-2186-0

Cited by 15 publications

(4 citation statements)

References 24 publications

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“…In fiber optic link, Erbium Doped Fiber Amplifier (EDFA) is the widely used optical amplifier that consists of three pumping techniques: forward, backward, or a combination of the two, called bidirectional pumping (Hui & O'Sullivan, 2022). The laser pump on the EDFA can have a wavelength of 980 or 1480 nm (Malakzadeh et al, 2020). EDFA is applied as an amplifier in a fiber optic system by placing the EDFA at the front (preamplifier) or the end (postamplifier) of the optical fiber transmission.…”

Section: Introductionmentioning

confidence: 99%

Quality Improvement on RoF 5G Fronthaul System Design at Millimeter-wave with EDFA and FBG Techniques

2023

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Jaringan seluler terkini membutuhkan kapasitas tinggi dan latensi rendah di fronthaul yang dapat didukung oleh radio over fiber (RoF) dengan gelombang milimeter. Namun, dispersi merupakan salah satu masalah dalam menjaga kualitas transmisi. Penelitian ini mempelajari komponen EDFA dan FBG untuk meningkatkan kinerja transmisi pada sistem RoF gelombang milimeter menggunakan Optisystem for 5G fronthaul dengan mempertimbangkan faktor Q dan Bit Error Rate (BER). EDFA meningkatkan kinerja dengan kecepatan bit puncak 16 Gbps untuk 1 km, yang memenuhi standar fronthaul D-RAN. Peningkatan peningkatan menggunakan FBG untuk bit rate 16 Gbps memberikan kinerja yang lebih baik mulai dari jarak 4 km hingga 97,99 persen dibandingkan dengan konfigurasi tanpa FBG. Hal ini menunjukkan bahwa dispersi mempengaruhi kinerja sistem lebih dari redaman dilihat dari rata-rata perbedaan BER sebesar 6.6280e-04 ketika FBG ditambahkan dengan EDFA. Penelitian ini menunjukkan dua teknik telah meningkatkan kinerja sistem.

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Section: Introductionmentioning

confidence: 99%

Quality Improvement on RoF 5G Fronthaul System Design at Millimeter-wave with EDFA and FBG Techniques

2023

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“…The root of optical ber sensor technology is directly associated with the development of the modern lasers attained in the 60s. Six decades have passed since the beginning of research on ber sensors and today these sensors are used in various civil and industrial elds [1][2][3][4][5][6][7]. These sensors have several potential bene ts that make them attractive for a variety of sensing applications.…”

Section: Introductionmentioning

confidence: 99%

Comparison of FWHM and peak power of FBG spectrum for simultaneous measurement of strain and temperature based on tilted cantilever beam

Mansoursamaei

Gholampour

Malakzadeh

2022

Preprint

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Among the optical fiber sensors, fiber Bragg grating (FBG) has found remarkable attraction and many applications due to its ability to measure all environmental parameters, high accuracy and sensitivity, easy installation, and low price. The sensor's ability to simultaneous measurement of two environmental (physical) parameters, especially strain and temperature, has made it even more demanding. Recently, two techniques based on FWHM and peak power changes of FBG spectrum have been proposed for simultaneous measurement of temperature and strain that use a uniform FBG on a tilted cantilever beam. In this article, we evaluate and compare both techniques and demonstrate that both are equivalent and have almost similar behaviour but do not have the same applications. We find that at the low strain range the peak power technique is more accurate while at the high strain range the FWHM technique has better accuracy. Therefore, in applications such as monitoring civil structures that have a high strain range, it is better to use the FWHM technique and in some delicate industrial applications with a low strain range, the peak power technique is used.

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“…optical fiber sensors, owing to their outstanding properties, have been widely developed for measuring temperature, strain, displacement, flow, vibration, bending, pressure, humidity, and etc. They are rapidly drawing interest in measurement of single, dual or multiple physical parameters [1][2][3][4][5][6][7][8][9][10][11]. Simultaneous measurement of temperature and strain is particularly important in many scientific and industrial applications and fiber Bragg grating (FBG) as a special class of optical fiber sensors has been successfully applied to these applications [12][13].…”

Section: Introductionmentioning

confidence: 99%

Simultaneous measurement of temperature and strain based on peak power changes and wavelength shift using only one uniform fiber bragg grating

Malakzadeh

Mansoursamaei²,

Pashaie

2021

Opt Quant Electron

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Many efforts have been devoted to simultaneous measurements of strain and temperature by FBG sensors and several improving techniques have been resulted and implemented on the measurement. Most of them are based on two or more FBGs configurations or a single non-uniform FBG implementation. We propose simultaneous measurement of temperature and strain based on peak power changes and Bragg wavelength shifts using only one uniform fiber Bragg grating (FBG). We placed a ramp with the angle of θ, similar to a tilted cantilever beam, on an assumptive structure and stuck a uniform FBG on it. When a uniform strain applied to a structure, the cantilever beam converts it to a non-uniform strain distribution along with itself and consequently the uniform FBG. By creating this non-uniform strain distribution, the peak power of the reflection spectrum of the FBG will be sensitive to strain changes. In addition, the Bragg wavelength shift will be sensitive to both temperature and strain parameters. According to our simulation, temperature sensitivity of 14.15 pm/℃ is obtained for FBG sensor without any changes in the peak power. The strain sensitivity of 0.7837 pm/με, and a nonlinear sensitivity according to a quadratic function for peak power variation are also observed.

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Gain and noise figure performance of an EDFA pumped at 980 nm or 1480 nm for DOFSs

Cited by 15 publications

References 24 publications

Quality Improvement on RoF 5G Fronthaul System Design at Millimeter-wave with EDFA and FBG Techniques

Quality Improvement on RoF 5G Fronthaul System Design at Millimeter-wave with EDFA and FBG Techniques

Comparison of FWHM and peak power of FBG spectrum for simultaneous measurement of strain and temperature based on tilted cantilever beam

Simultaneous measurement of temperature and strain based on peak power changes and wavelength shift using only one uniform fiber bragg grating

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