TUNABLE ASYMMETRIC FANO LINESHAPES IN SILICON-BASED MICRORING RESONATORS WITH FEEDBACK

被引：2

作者：

Pitakwongsaporn, Santhad ^{[1
]}

Chiangga, Surasak ^{[2
]}

机构：

[1] Kasetsart Univ, Fac Sci, Dept Phys, Bangkok 10900, Thailand

[2] Kasetsart Univ, Fac Sci, Ctr Adv Studies Ind Technol, Bangkok 10900, Thailand

来源：

JOURNAL OF NONLINEAR OPTICAL PHYSICS & MATERIALS | 2011年 / 20卷 / 03期

关键词：

Ring resonator; asymmetric lineshapes; integrated optics; nonlinear effects; silicon; OPTICAL BISTABILITY; RESONANCE; MODULATION;

D O I：

10.1142/S0218863511006145

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We theoretically examine the Fano lineshapes of silicon-based compound microring resonators consisting of a single resonator channel dropping filter linked to a loop as a feedback structure. All possible optical effects for the continuous-wave operating regime, such as linear absorption or scattering, two-photon absorption, free-carrier absorption and dispersion, thermo-optics, are simultaneously considered. We show that sharp Fano resonances can be tuned by variation in the coupling coefficients, length of feedback loop, effective free carrier lifetime and the temperature inside the device. Tunable Fano lineshapes open up opportunities for applications in sensing, computing, and communications.

引用

页码：357 / 366

页数：10

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