Optical noise induced by instantaneous pump depletion in optical fiber Raman amplifiers for DWDM applications

2001 ◽  
Author(s):  
Minhui Yan ◽  
Jianping Chen ◽  
Wenning Jiang ◽  
Jianlang Li ◽  
Junfeng Chen ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Optical Noise ◽  
Raman Amplifiers ◽  
Pump Depletion

Pump depletion induced noise and crosstalk in distributed optical fiber Raman amplifiers

2001 ◽  
Vol 13 (7) ◽  
pp. 651-653 ◽  
Author(s):  
Minhui Yan ◽  
Jianping Chen ◽  
Wenning Jiang ◽  
Jianlang Li ◽  
Junfeng Chen ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Raman Amplifiers ◽  
Distributed Optical Fiber ◽  
Pump Depletion

Comparative Simulation Study of Multi Stage Hybrid All Optical Fiber Amplifiers in Optical Communications

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
IS Amiri ◽  
Ahmed Nabih Zaki Rashed ◽  
P. Yupapin
Keyword(s):  
Optical Fiber ◽  
Communication Systems ◽  
Single Stage ◽  
Fiber Amplifiers ◽  
Multi Stage ◽  
Raman Amplifiers ◽  
All Optical ◽  
Optical Communication Systems ◽  
Optical Fiber Amplifiers ◽  
Hybrid Configuration

AbstractThis study clarifies the comparison between hybrid all optical fiber amplifiers in single-stage and multi-stage amplification. EDFA/Raman, Raman/EDFA/Raman, and EDFA/Raman/EDFA configurations are employed for upgrading optical communication systems. Single-stage Raman amplifiers clarifies very better performance than single-stage EDFA amplifier. Multi-stage Raman/EDFA/Raman also outlines very better performance than other hybrid configuration up to 475 km distance. Single-stage Raman amplification has outlined maxi. Q factor up to 218.392 for 250 km distance and 11.937 up to 475 km propagation range. So hybrid all optical amplifiers are essentially for upgrading optical system performance efficiency.

Impulsive pump depletion in saturated Raman amplifiers

2001 ◽  
Vol 37 (14) ◽  
pp. 886 ◽  
Author(s):  
A. Bononi ◽  
M. Papararo ◽  
A. Vannucci
Keyword(s):  
Raman Amplifiers ◽  
Pump Depletion

Analysis of ASE Noise in Optical Fiber Raman Amplifiers

2005 ◽  
Vol 26 (5) ◽  
Author(s):  
Wenning Jiang ◽  
Jianping Chen ◽  
Tao Shang ◽  
Guiling Wu
Keyword(s):  
Optical Fiber ◽  
Raman Amplifiers

scholarly journals Noise Suppression Phenomenon in Fiber Raman Amplifier

2015 ◽  
Vol 15 (3) ◽  
pp. 107-110 ◽  
Author(s):  
Georgii Felinskyi ◽  
Mykhailo Dyriv
Keyword(s):  
Spontaneous Emission ◽  
Noise Suppression ◽  
Signal To Noise Ratio ◽  
Amplified Spontaneous Emission ◽  
Optical Signal ◽  
Raman Gain ◽  
Optical Noise ◽  
Fiber Raman Amplifier ◽  
Raman Amplifiers ◽  
Noise Evaluation

Abstract The problem of small bit error rate is actual in fiber Raman amplifiers. Our experimental data on the amplified spontaneous emission (ASE) with backward pumping as a base of optical noise evaluation are presented in this paper. Raman gain spectrum for useful Stokes low-powered signal is calculated and compared with obtained spectrum of non-coherent ASE noise. It is shown that output optical signal has better gain than the amplified spontaneous emission that leads to appreciable growth of output optical signal-to-noise ratio.

scholarly journals Maximization of Gain in Slow-Light Silicon Raman Amplifiers

2011 ◽  
Vol 2011 ◽  
pp. 1-7 ◽  
Author(s):  
Ivan D. Rukhlenko ◽  
Malin Premaratne ◽  
Govind P. Agrawal
Keyword(s):  
Slow Light ◽  
Design Guidelines ◽  
Maximum Speed ◽  
Raman Amplifier ◽  
Silicon Photonic ◽  
Raman Amplifiers ◽  
Optical Modes ◽  
First Time ◽  
Analytical Expressions ◽  
Pump Depletion

We theoretically study the problem of Raman gain maximization in uniform silicon photonic-crystal waveguides supporting slow optical modes. For the first time, an exact solution to this problem is obtained within the framework of the undepleted-pump approximation. Specifically, we derive analytical expressions for the maximum signal gain, optimal input pump power, and optimal length of a silicon Raman amplifier and demonstrate that the ultimate gain is achieved when the pump beam propagates at its maximum speed. If the signal’s group velocity can be reduced by a factor of 10 compared to its value in a bulk silicon, it may result in ultrahigh gains exceeding 100 dB. We also optimize the device parameters of a silicon Raman amplifier in the regime of strong pump depletion and come up with general design guidelines that can be used in practice.

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