SiC Smart Photonic Waveguide Device for Data Processing

被引:0
|
作者
Wu, Chung-Lun [1 ]
Cheng, Chih-Hsien
Lin, Yung-Hsiang
Lin, Gong-Ru
机构
[1] Natl Taiwan Univ, Grad Inst Photon & Optoelect, Taipei 10617, Taiwan
来源
GREEN PHOTONICS AND SMART PHOTONICS | 2016年 / 1卷
关键词
SiC; silicon QD; non-linear Kerr effect; all-optical modulation; AMORPHOUS-SILICON-CARBIDE; FREE-CARRIER ABSORPTION; REFRACTIVE-INDEX; NANOCRYSTALS; GLASSES; NONLINEARITIES; THRESHOLD; INJECTION; LIFETIME;
D O I
暂无
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The ultrafast non-linear optical Kerr switch with Si-QD doped in a-SiC (a-SiC:Si-QD) micro-ring resonator is demonstrated. The optical non-linearity of a-SiC can be significantly enhanced due to the enlarged oscillation strength of localized excitons in the Si-QD. The non-linear refractive index and TPA coefficient of a-SiC:Si-QD at 800 nm obtained from Z-scan measurements are 1.83 x 10(-11) cm(2)/W and 4.6 x 10(-6) cm/W, respectively. Although the TPA effect is severed at 800 nm, it can be significantly suppressed by setting the operation wavelength at 1550 nm due to the small photon energy. Such a property is very important to analyze the non-linear Kerr switch at telecommunication wavelengths without interfering with the TPA and FCA. By injecting a pump-pulsed laser with peak power of 3 W into the a-SiC:SiQD micro-ring resonator at resonance condition, the transmission spectrum is dynamically red-shifted to 0.07 nm due to the non-linear Kerr effect. By properly setting the probe wavelength at on-resonance and off-resonance of the a-SiC:Si-QD micro-ring resonator, the probe beam can be directly and inversely modulated by the injected pump source. Furthermore, the all-optical non-linear Kerr switch delivering NRZ-OOK data format with bit-rate of 12 Gbit/s has been successfully demonstrated by using the a-SiC:Si-QD micro-ring resonator.
引用
收藏
页码:179 / 200
页数:22
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