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Gain properties and optical-feedback suppression of asymmetrical curved active waveguides

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Abstract

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 SOA with the simple device structure without isolators performs a more than 18 dB fiber-to-fiber gain, 980 μW spontaneous emission power, and 13 dBm saturation power.

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Authors and Affiliations

  1. Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen University, Shenzhen, 518060, China

    Zigang Duan & Guangyue Chai

  2. Electrical and Computer Engineering Department, University of British Columbia, Vancouver, V6R 1T3, Canada

    Wei Shi

  3. School of Science, Xi’an Shiyou University, Xi’an, 710065, China

    Yan Li

Authors
  1. Zigang Duan
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  2. Wei Shi
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  3. Yan Li
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  4. Guangyue Chai
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Correspondence to Zigang Duan.

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Duan, Z., Shi, W., Li, Y. et al. Gain properties and optical-feedback suppression of asymmetrical curved active waveguides. Front. Optoelectron. China 2, 379–383 (2009). https://doi.org/10.1007/s12200-009-0065-1

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  • DOI: https://doi.org/10.1007/s12200-009-0065-1

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