Group-IV semiconductor based photonic waveguide devices for versatile pulsed data processing

基于 IV 族半导体的光子波导器件，用于多功能脉冲数据处理

• 批准号: 20F20374
• 负责人: 山下 真司
• 金额: $ 1.47万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for JSPS Fellows
• 财政年份: 2020
• 资助国家: 日本
• 起止时间: 2020-11-13 至 2023-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-20F20374/
• 关键词: Silicon photonics; Nonlinear optics; Group-IV semiconductor; micro-ring resonator; all-optical processing; Mode-locked fiber laser; VCSEL; Nonlinear waveguide

In this JSPS research fund between Apr.2022 and Nov. 2022, we worked on 25-Gbps all-optical data processing based on the silicon carbide (SiC) micro-ring resonator. This SiC micro-ring resonator with a nonlinear refractive index of 3.05×10-14 cm2/W of is retrieved from the pump-probe analysis. In addition, the eye diagram of the wavelength-converted data exhibits its signal-to-noise and on/off-extinction ratios (SNR and ER) of 5.6 dB and 11.8 dB, respectively. For the 25-Gbps data inversion, the SNR and ER can be evaluated as 4.8-dB and 10.2-dB, respectively. In addition, the rising and falling time in an ultrafast switching is also measured as less than 22 ps. This phenomenon causes all-optical data processing including both wavelength switching and format conversion. Therefore, the highly nonlinear optical SiC micro-ring resonator can achieve error-free operation with a bit-error ratio (BER) lower than 1×10-5 at 25 Gbps.In taddition, the O-band Ge p-i-n photodetector (PD) are demonstrated to receive the NRZ-OOK data beyond 60 Gbps. After optimizing the transmission-line designs, the Ge PD improves its RLC response to enhance the receiving bandwidth. Decreasing the transmission-line length from 280 μm to 80 μm extends the S11 spectral response from 51 to 57 GHz. When the Ge PD is used to receive the optical NRZ-OOK data stream, the long-electrode device exhibts 53-Gbps receiving performance. The short-electrode Ge PD receives the NRZ-OOK data beyond 56 Gbps and 60 Gbps under error-free communication criterion of BER<10－12 and BER<10－9 , respectively.

在2022年4月至2022年11月之间的JSPS研究基金中，我们基于碳化硅（SIC）微环谐振器进行了25 Gbps全光数据处理。该SIC微型环谐振器的非线性折射率为3.05×10-14 cm2/w，从泵探针分析中获取。另外，波长转换数据的眼图分别显示出其信号到噪声，并且在/偏离范围（SNR和ER）分别为5.6 dB和11.8 dB。对于25 Gbps数据倒置，SNR和ER可以分别评估为4.8-DB和10.2-DB。此外，超快开关中的上升和下降时间也被测量为小于22 ps。这种现象会导致全光数据处理，包括波长开关和格式转换。因此，高度非线性的光学SIC微型环谐振器可以在25 Gbps.in TADDITITITITION时以低于1×10-5的比率（BER）实现无错误的操作，O-Band GE P-i-n potodeTector（pd）已被证明可以接收到超过60gbps的NRZ-OK数据。在优化传输线设计后，GE PD改善了其RLC响应以增强接收带宽。将传输线长度从280μm减少到80μm，将S11光谱响应从51 GHz扩展到57 GHz。当GE PD用于接收光学NRZ-IOK数据流时，长电极设备将暴露53 Gbps接收性能。在BER <10-12和BER <10-9的无错误通信标准下，短电极GE PD在56 Gbps和60 Gbps以上接收NRZ-OK数据。

项目成果

Comparing the Dual-Mode VCSEL in OM4-MMF and GI-SMF Links for NRZ-OOK and 16-QAM-OFDM Transmissions

比较 OM4-MMF 和 GI-SMF 链路中用于 NRZ-OOK 和 16-QAM-OFDM 传输的双模 VCSEL

• DOI: 10.1109/jphot.2022.3168626
• 发表时间: 2022
• 期刊: IEEE Photonics Journal
• 影响因子: 2.4
• 作者: Lee Shao-Yung;Cheng Chih-Hsien;Tseng Hsien-Yao;Chen Xin;Lo Wei-Chi;Li Kangmei;Wang Chia-Hsuan;Tsai Cheng-Ting;Kuo Hao-Chung;Li Ming-Jun;Lin Gong-Ru
• 通讯作者: Lin Gong-Ru

Effect of Transmission-Line Contact Length on the 50-Gbit/s Data Encoding Performance of a Multimode VCSEL

传输线接触长度对多模 VCSEL 50 Gbit/s 数据编码性能的影响

• DOI: 10.3390/photonics9020114
• 发表时间: 2022
• 期刊: Photonics
• 影响因子: 2.4
• 作者: Weng Jui-Hung;Lo Wei-Chi;Wang Jiaxing;Qiao Pengfei;Shen Chih-Chiang;Cheng Chih-Hsien;Chang-Hasnain Constance J.;Lin Gong-Ru
• 通讯作者: Lin Gong-Ru

All-Optical 25-Gbps Silicon Carbide Kerr Switching Intensity Modulator On Silicon Platform

硅平台上的全光 25 Gbps 碳化硅 Kerr 开关强度调制器

• 发表时间: 2022
• 作者: Chih-Hsien Cheng;Cai-Syuan Fu;Sze Yun Set;Shinji Yamashita and Gong-Ru Lin
• 通讯作者: Shinji Yamashita and Gong-Ru Lin

Review on optical nonlinearity of group-IV semiconducting materials for all-optical processing

• DOI: 10.1063/5.0102342
• 发表时间: 2022-08-01
• 期刊: APL PHOTONICS
• 影响因子: 5.6
• 作者: Cheng，Chih-Hsien;Fu，Cai-Syuan;Lin，Gong-Ru
• 通讯作者: Lin，Gong-Ru

Photonic Crystal Structured Multi-Mode VCSELs Enabling 92-Gbit/s QAM-OFDM Transmission

• DOI: 10.1109/jlt.2021.3073898
• 发表时间: 2021-07
• 期刊: Journal of Lightwave Technology
• 影响因子: 4.7
• 作者: Yu-Hong Lin;Cheng-Ting Tsai;Wei-Li Wu;Chih-Hsien Cheng;K. Choquette;G. Lin