Frontiers of Optoelectronics, Volume. 2, Issue 4, 379(2009)
Gain properties and optical-feedback suppression of asymmetrical curved active waveguides
Elaborately-designed asymmetrical curved active waveguides are introduced to improve the gain properties of semiconductor optical amplifiers (SOAs) by internal distributed optical-feedback suppression. An analytical model of the double-energy-level system is utilized in the simulation and designed by the finite difference time domain (FDTD) method. Under a 280 mA driving current, the optimized curved SOAwith the simple device structure without isolators performs a more than 18 dB fiber-to-fiber gain, 980 mW spontaneous emission power, and 13 dBm saturation power.
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Zigang DUAN, Wei SHI, Yan LI, Guangyue CHAI. Gain properties and optical-feedback suppression of asymmetrical curved active waveguides[J]. Frontiers of Optoelectronics, 2009, 2(4): 379
Received: Jul. 20, 2009
Accepted: Aug. 25, 2009
Published Online: Oct. 8, 2012
The Author Email: DUAN Zigang (zgduan@szu.edu.cn)