scholarly journals Detailed Theoretical Model for Adjustable Gain-Clamped Semiconductor Optical Amplifier

2012 ◽  
Vol 2012 ◽  
pp. 1-7
Author(s):  
Lin Liu ◽  
Craig Michie ◽  
Anthony E. Kelly ◽  
Ivan Andonovic
Keyword(s):  
Theoretical Model ◽  
Optical Networks ◽  
Dynamic Systems ◽  
Semiconductor Optical Amplifier ◽  
Ring Cavity ◽  
Optical Amplifier ◽  
Gain Modulation ◽  
Linear Amplification ◽  
Gain Clamping ◽  
Dynamic Gain

The adjustable gain-clamped semiconductor optical amplifier (AGC-SOA) uses two SOAs in a ring-cavity topology: one to amplify the signal and the other to control the gain. The device was designed to maximize the output saturated power while adjusting gain to regulate power differences between packets without loss of linearity. This type of subsystem can be used for power equalisation and linear amplification in packet-based dynamic systems such as passive optical networks (PONs). A detailed theoretical model is presented in this paper to simulate the operation of the AGC-SOA, which gives a better understanding of the underlying gain clamping mechanics. Simulations and comparisons with steady-state and dynamic gain modulation experimental performance are given which validate the model.

All-optical differentiator based on cross-gain modulation in semiconductor optical amplifier

2007 ◽  
Vol 32 (20) ◽  
pp. 3029 ◽  
Author(s):  
Jing Xu ◽  
Xinliang Zhang ◽  
Jianji Dong ◽  
Deming Liu ◽  
Dexiu Huang
Keyword(s):  
Semiconductor Optical Amplifier ◽  
Optical Amplifier ◽  
Gain Modulation ◽  
Cross Gain Modulation ◽  
All Optical ◽  
Optical Differentiator

Experimental and analytical evaluation of packaged 4×4 InGaAsP/InP semiconductor optical amplifier gate switch matrices for optical networks

1996 ◽  
Vol 14 (6) ◽  
pp. 996-1004 ◽  
Author(s):  
E. Almstrom ◽  
C.P. Larsen ◽  
L. Gillner ◽  
W.H. van Berlo ◽  
M. Gustavsson ◽  
...  
Keyword(s):  
Optical Networks ◽  
Semiconductor Optical Amplifier ◽  
Optical Amplifier ◽  
Analytical Evaluation

Fiber ring-cavity laser based on semiconductor optical amplifier

2018 ◽  
Vol 32 (24) ◽  
pp. 1850266
Author(s):  
Min Luo ◽  
Wei Cao ◽  
Haiyan Chen
Keyword(s):  
Quantum Wells ◽  
Fiber Bragg Grating ◽  
Semiconductor Optical Amplifier ◽  
Operating Temperature ◽  
Ring Cavity ◽  
Optical Amplifier ◽  
Injection Current ◽  
Bragg Grating ◽  
Center Wavelength ◽  
Fiber Ring

A fiber ring-cavity laser based on InP/InGaAsP multi-quantum wells semiconductor optical amplifier is proposed and experimentally demonstrated. The laser uses InP/InGaAsP multi-quantum as well as the gain medium and fiber Bragg grating as the wavelength selector. It’s demonstrated that the center wavelength of the output amplified spontaneous emission spectrum for the InP/InGaAsP multiple-quantum wells appears blue shift when its injection current increases. A lasing at central wavelength of 1549.66 nm with the maximum output power of 1.524 mW is obtained with electro-optical efficiency of 1.1% at injection current of 220 mA and the fiber Bragg grating operating temperature of 23[Formula: see text]C. The threshold injection current of the laser is 78 mA. When the operating temperature of fiber Bragg grating increases from 8[Formula: see text]C to 28[Formula: see text]C, the center wavelength of output laser increases from 1549.27 to 1549.59 nm. It shows that the laser has good temperature stability.

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