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5 December 2005 Study on optical gain from PCFs with active impurities
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Proceedings Volume 6019, Passive Components and Fiber-based Devices II; 60193X (2005)
Event: Asia-Pacific Optical Communications, 2005, Shanghai, China
The characteristics of localized fields of doped photonic crystal fibers (PCFs) are studied by numerical simulation method in the paper. An interesting phenomenon is produced with the enhancement of stimulated radiation, which is the transmittivity being greater than one. And the numerical results show clearly the relation between the characteristics of localized fields, the abnormal group velocity in photonic band gaps and the negative imaginary component of the complex effective index of refraction of doped medium. Based on the relations the amplification of stimulated emission can be realized by introducing active impurities into the defect media of PCFs. Furthermore, the narrow transmission bands can be obtained by introducing line defects into the doped PCFs, which are used as channels in wavelength-division multiplexed (WDM) communication systems. And the doped PCFs can also be used to make optical amplifiers employed in dense WDM communication systems.
© (2005) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Zhenghua Li, Jun Zhou, Tinggen Shen, and Yuntuan Fang "Study on optical gain from PCFs with active impurities", Proc. SPIE 6019, Passive Components and Fiber-based Devices II, 60193X (5 December 2005);

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