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CLC number: O439

On-line Access: 2019-05-14

Received: 2018-07-14

Revision Accepted: 2018-09-24

Crosschecked: 2019-04-11

Cited: 0

Clicked: 3386

Citations:  Bibtex RefMan EndNote GB/T7714

 ORCID:

Chen-lei Li

http://orcid.org/0000-0002-6759-3846

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Frontiers of Information Technology & Electronic Engineering  2019 Vol.20 No.4 P.498-506

http://doi.org/10.1631/FITEE.1800386


Ten-channel mode-division-multiplexed silicon photonic integrated circuit with sharp bends


Author(s):  Chen-lei Li, Xiao-hui Jiang, Yung Hsu, Guan-hong Chen, Chi-wai Chow, Dao-xin Dai

Affiliation(s):  Centre for Optical and Electromagnetic Research, State Key Laboratory for Modern Optical Instrumentation, College of Optical Science and Engineering, Zhejiang University, Hangzhou 310058, China; more

Corresponding email(s):   lichenlei@zju.edu.cn, xiaohuijiang@zju.edu.cn, matrtihewl0937@gmail.com, sscssc82@yahoo.com.tw, cwchow@faculty.nctu.edu.tw, dxdai@zju.edu.cn

Key Words:  Silicon, Multimode, Waveguide, Euler-bends


Chen-lei Li, Xiao-hui Jiang, Yung Hsu, Guan-hong Chen, Chi-wai Chow, Dao-xin Dai. Ten-channel mode-division-multiplexed silicon photonic integrated circuit with sharp bends[J]. Frontiers of Information Technology & Electronic Engineering, 2019, 20(4): 498-506.

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Abstract: 
A multimode silicon photonic integrated circuit (PIC) comprising a pair of on-chip mode (de)multiplexers with 10-mode channels and a multimode bus waveguide with sharp bends is demonstrated to enable multi-channel on-chip transmissions. The core width of the multimode bus waveguide is chosen such that it can support 10 guided modes, of which there are four transverse-magnetic polarization modes and six transverse-electric polarization modes. This multimode bus waveguide comprises sharp bends based on modified Euler curves. Experimental results demonstrate that the present silicon PIC enables the 10-channel on-chip transmission with a low inter-mode crosstalk of approximately −20 dB over a broad bandwidth of 1520–1610 nm even when the bending radius of the S-bend is as small as 40 μm. Compared with a silicon PIC using a conventional arc-bend with the same bending radius, our proposed PIC demonstrates a significant improvement.

具有超小弯曲半径的10通道硅基集成模分复用器件

摘要:为实现多通道片上信号传输,设计一种多模硅光集成器件(PIC),包括一对10通道片上模式多路复用-解复用器以及具有超小弯曲半径的总线波导。选择多模总线波导宽度使其能支持10种模式,其中包括4种横磁(TM)和6种横电(TE)偏振模式。多模总线波导由基于修正的欧拉曲线超小弯曲半径组成。实验结果表明,即使组成总线波导的弯曲半径仅为40µm,该芯片仍可在大带宽1520−1610 nm上实现10通道传输,且具有约−20 dB的低模间串扰。与传统弯曲半径相同的圆弧弯曲相比,该集成器件有明显优势。

关键词:硅;多模;光波导;欧拉曲线

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

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