研究领域：

光电集成器件和芯片及其在光学测量和数据通信中的应用研究。研究内容包括芯片级光谱仪、先进集成光通信器件、可重构光子网络、复杂光栅器件等。面向的应用领域包括微型化智能仪器、片上光通信、人工智能、激光雷达等。

招生信息：

欢迎有仪器、光电、计算机等背景的同学加入课题组，可通过邮箱地址 rcheng [at] hfut.edu.cn 与我联系。

研究和实验条件：

- 高精度六维硅光芯片-光纤耦合系统（可实现自动化器件测试，见 Sip-automatic_probe_station）

- 是德科技的光谱测试系统（8163B主机+81960A激光器+N7745A功率计）、

- 高精度可编程电压源*2台

- 双路 AMD 7542 68核高性能工作站 *3台（用以光学器件仿真）

- 等等

另外，还有一些基本的光学测试设备，包括超连续谱光源、日本横河光谱仪、1G模拟带宽示波器、50MHz任意波形发生器等。

毕业生就业去向：

2021级研究生（第一届所指导的硕士生）：

- 王文康：西湖大学光电研究院（杭州）

- 汪琪：浙江华东光电仪器有限公司（嘉兴）

- 孙荣磊：豫北转向智能科技（苏州）

研究成果（更多论文见 ResearchGate 或 谷歌学术 个人主页）：

2023

5.   R. Sun, Q. Wang, W. Wang, and R. Cheng*, 

“Broadband, flat-top, silicon photonic contra-directional couplers assisted by asymmetric multimode photonic crystals,” IEEE Photonics J. 15(6), 1-9 (2023).

《非对称多模光子晶体辅助型宽带、平顶硅光逆向耦合器》

4. Q. Wang, W. Wang, R. Sun, P. Yu, H. Qiu, and R. Cheng*, 

“Inverse design of asymmetric Y-junctions for ultra-compact, broadband and low crosstalk mode (de)multiplexers” Opt. Express 31(22), 37284-37301 (2023).

《基于逆向设计非对称”Y“分支的超紧凑、宽带、低串扰的集成模式复用/解复用器》

3.  W. Wang, Q. Wang, R. Sun, Y. Han, and R. Cheng*, 

“Mode thermo-optic coefficient engineering of sub-wavelength gratings and its application for a mode-insensitive switch,” Opt. Express 31(22), 35864-35879 (2023).

《基于亚波长波导光栅的模式热光系数设计及其在模式不敏感集成光开关的应用》

2. R. Sun, W. Wang, Q. Wang, Y. Liang, A. Li, and R. Cheng*, 

“Forward-dropping contradirectional coupler-based add-drop filter with antisymmetric photonic crystal,” IEEE Photonics Technol. Lett. 35(20), 1127-1130 (2023).

《反对称型光子晶体辅助的正向光下载的集成光上传下载滤波器》

1. R. Cheng*, W. Wang, R. Sun, A. Li, and Y. Liang. 

“Broadband, compact and reflection-less silicon polarizer and polarization beam splitter using chirped anti-symmetric multimode nanobeams.” Opt. Express 31(12), 19347-19361 (2023).

《基于啁啾反对称型多模纳米梁的宽带、紧凑、无反射的硅光起偏器和偏振分束器》

其它部分研究成果 

1. R. Cheng*, N. Jaeger, and L.Chrostowski, “Fully-tailorable integrated-optic resonators based on chirped waveguide Moiré gratings,” Optica, 7(6): pp. 647-657 (2020).
   

2. R. Cheng* and L. Chrostowski, “Apodization of Silicon Integrated Bragg Gratings through Periodic Phase Modulation,” IEEE Journal of Selected Topics in Quantum Electronics, 26(2): pp. 1-15, March-April 2020.

3. R. Cheng*, H. Yun, S. Lin, Y. Han, and L. Chrostowski, “Apodization profile amplification of silicon integrated Bragg gratings through lateral phase delays,” Optics Letters, 44(2): pp. 435-438 (2019).

4. R. Cheng*, Y. Han, and L. Chrostowski, “Characterization and compensation of apodization phase noise in silicon integrated Bragg gratings,” Optics Express, 27(7): pp. 9516-9535 (2019).

5. R. Cheng* and L. Chrostowski, “Multichannel photonic Hilbert transformers based on complex modulated integrated Bragg gratings,” Optics Letters, 43(5): pp. 1031-1034 (2018).

6. R. Cheng, L. Xia*, Y. Ran, J. Rohollahnejad, J. Zhou, and Y. Wen, “Interrogation of ultrashort Bragg grating sensors using shifted optical Gaussian filters,” Photonics Technology Letters, IEEE, 27(17): pp. 1833-1836 (2015).

7. R. Cheng, L. Xia*, J. Yan, et al. “Radio frequency FBG-based interferometer for remote adaptive strain monitoring,” Photonics Technology Letters, IEEE, 27(15): pp. 1577–1580 (2015).

8. R. Cheng, L. Xia*, J. Zhou, and D. Liu. “Wavelength interrogation of fiber Bragg grating sensors based on crossed optical Gaussian filters,” Optics Letters, 40(8): pp. 1760-1763 (2015). 

9. R. Cheng and L. Xia*. “Interrogation of weak Bragg grating sensors based on dual-wavelength differential detection,” Optics Letters, 41(22): pp. 5254-5257 (2016).

10. R. Cheng, L. Xia*, C. Sima, et al., “Ultra-short FBG based distributed sensing using shifted optical Gaussian filters and microwave-network analysis,” Optics Express, 24(3): pp. 2466-2484 (2016).

11. R. Cheng* and L.Chrostowski, “Spectral design of silicon integrated Bragg gratings: a tutorial,” Journal of Lightwave Technology, IEEE, accepted (Manuscript ID: JLT-26788-2020).