Nonstoichiometric SiC Bus/Ring Waveguide Based All-Optical Data Format Follower and Inverter

详细信息    查看全文

• 作者：Sheng-Pin Su ; Chung-Lun Wu ; Chih-Hsien Cheng ; Bo-Ji Huang ; Huai-Yung Wang ; Cheng-Ting Tsai ; Yung-Hsiang Lin ; Yu-Chieh Chi ; Min-Hsiung Shih ; Chao-Kuei Lee ; Gong-Ru Lin
• 刊名：ACS Photonics
• 出版年：2016
• 出版时间：May 18, 2016
• 年：2016
• 卷：3
• 期：5
• 页码：806-818
• 全文大小：1086K
• 年卷期：0
• ISSN：2330-4022

文摘

Nonstoichiometric silicon carbide (SiC) bus/ring waveguide resonator based all-optical data-format follower and inverter is demonstrated to perform ultrafast dual-functional wavelength and data-format conversion. The buried Si quantum dots (Si-QDs) with strong quantum confinement effect effectively result in a significant change on the nonlinear refractive index of 3.14 × 10^–13 cm²/W, which induces a red-shift of 0.07 nm on the resonant wavelength comb of the nonstoichiometric SiC ring waveguide resonator. By injecting the 12 Gbit/s optical pulsed return-to-zero on–off keying (PRZ-OOK) data stream into the ring waveguide at a notched wavelength of 1551.08 nm, the induced red-shift on resonant wavelengths allows versatile all-optical data processing functions, including data wavelength conversion and data format following/inversion, on the data patterns transferred to the probe. The eye-opening diagram analysis at 12 Gbit/s reveals that the data transferred to the probe can provide a signal-to-noise ratio of 9.4 dB, and a receiving power penalty is degraded by 2.6 dB as compared to that of the pump data.