Compact and flat-gain fiber optical amplifier with Hafnia-Bismuth-Erbium co-doped fiber

Optik ◽  
2018 ◽  
Vol 170 ◽  
pp. 56-60 ◽  
Author(s):  
Alabbas A. Al-Azzawi ◽  
Aya A. Almukhtar ◽  
P.H. Reddy ◽  
D. Dutta ◽  
S. Das ◽  
...  
Keyword(s):  
Optical Amplifier ◽  
Fiber Optical ◽  
Flat Gain ◽  
Co Doped

Wide-band flat-gain optical amplifier using Hafnia and zirconia erbium co-doped fibres in double-pass parallel configuration

2019 ◽  
Vol 66 (16) ◽  
pp. 1711-1716 ◽  
Author(s):  
Alabbas A. Al-Azzawi ◽  
Aya A. Almukhtar ◽  
P. H. Reddy ◽  
D. Dutta ◽  
S. Das ◽  
...  
Keyword(s):  
Wide Band ◽  
Optical Amplifier ◽  
Double Pass ◽  
Flat Gain ◽  
Parallel Configuration ◽  
Co Doped

Study of the Correction of Effects Chromatic Dispersion and Attenuation to Evaluate the Optical Transmission

2020 ◽  
Vol 41 (2) ◽  
pp. 209-214
Author(s):  
Saliha Kheris ◽  
Badra Bouabdallah
Keyword(s):  
Optical Transmission ◽  
Signal To Noise Ratio ◽  
Chromatic Dispersion ◽  
Optical Amplifier ◽  
Laser Source ◽  
Long Distance ◽  
Optical Components ◽  
Optical Detector ◽  
Fiber Optical ◽  
Dispersion And Attenuation

AbstractIn this paper, we have presented a global study of simple bonds, focusing on the main limitations introduced by different optical components as laser source, fiber, optical amplifier, and optical detector. The construction of a long-distance link requires the compensation of attenuation and chromatic dispersion phenomena. Thus, it is well known that the attenuations cause the drop of the signal intensity, whereas the pulse spreading, due to the dispersion, causes the increase of the Bit Error Rate (BER) and consequently the reduction of the signal to noise ratio (SNR). In this purpose, we have calculated the quality factor (Q) issues from the noisy signal’s simulations. We have found a Q of 7.02 to a BER of 0.8 e−12. The founding results match well with fixes norms in telecommunication field.

Automatic Gain-Controlled HOA with Residual Pumping

2017 ◽  
Vol 0 (0) ◽  
Author(s):  
Navjot Singh ◽  
Mahendra Kumar ◽  
Ashu Verma
Keyword(s):  
Pump Power ◽  
Broad Spectrum ◽  
Communication Systems ◽  
Noise Figure ◽  
Optical Amplifiers ◽  
Optical Amplifier ◽  
Maximum Gain ◽  
L Band ◽  
Flat Gain

AbstractThe interminable need of number of channels in communication systems escorts more number of wavelengths to be used. This broad spectrum of wavelengths when expands in both C and L band, the need of hybrid optical amplifiers (HOA) comes into play. In this work, we proposed an automatic gain-controlled HOA using Residual pumping for C/L band. The desired gain is fixed at 27 dB at pump power swinging between 300 and 400 mW. The input powers are automatically adjusted so as to provide invariable and flat gain eliminating the wavelength dependency of optical amplifier to great extents. Analysis is carried out in a 32 channel WDM system and power transients are also measured in terms of powers of surviving channels and excursion amplitudes by adding and dropping up to 28 channels. The output is adjudicated in terms of maximum gain achieved, OSNR, BER, gain flatness, noise figure and power transient excursion amplitudes.

Performance Evaluation of Hybrid Optical Amplifier for Ultra Dense Wavelength Division Multiplexed Optical Network at Narrow Channel Spacing

2019 ◽  
Vol 0 (0) ◽  
Author(s):  
Deepak Malik ◽  
Amit Wason
Keyword(s):  
Noise Figure ◽  
Work Capacity ◽  
Optical Amplifier ◽  
Input Power ◽  
Channel Spacing ◽  
Erbium Doped Fiber Amplifier ◽  
Wavelength Division ◽  
Wavelength Division Multiplexed ◽  
Flat Gain ◽  
Hybrid Optical Amplifier

AbstractIn this paper, a competent flat gain hybrid optical amplifier is proposed with an optimum arrangement of erbium doped fiber amplifier (EDFA) and Raman amplifier. Attempts are made to design a hybrid optical amplifier for100 channels, 10 Gbps super dense wavelength division multiplexed (SDWDM) systems at channel spacing of 0.1 nm. Work capacity of the system was compared on the basis of various parameters, viz., noise figure and gain that determined the performance of the system. The gain spectrum of the hybrid optical amplifier depends upon the parameters viz., laser input power, pump power and pump wavelength of the amplifier. It was found that for wavelength range 1,560.38–1,579.59 nm, a flat gain of 4.34 dB is achieved for input power of −10 dB with noise figure variation of 0.818 dB without using any gain flattering scheme. Being simple and cost effective, this hybrid optical amplifier could be recommended for gain flatness characteristics and acceptable noise figure for dense wavelength multiplexed systems.

Boro-silicate glasses co-doped Er+3/Yb+3 for optical amplifier and gamma radiation shielding applications

2019 ◽  
Vol 567 ◽  
pp. 37-44 ◽  
Author(s):  
Mustafa Dh Hassib ◽  
Kawa M. Kaky ◽  
Ashok Kumar ◽  
Erdem Şakar ◽  
M.I. Sayyed ◽  
...  
Keyword(s):  
Gamma Radiation ◽  
Optical Amplifier ◽  
Radiation Shielding ◽  
Silicate Glasses ◽  
Co Doped
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