A 32-Channel C-Band Hybrid Wavelength/ Polarization Division (de)multiplexer on Silicon

被引:6
|
作者
Yu, Hang [1 ,2 ]
Yin, Yuxiang [1 ,2 ]
Huang, Xingrui [1 ,2 ]
Tu, Donghe [1 ,2 ]
Yu, Zhiguo [1 ]
Guan, Huan [1 ]
Li, Zhiyong [1 ]
机构
[1] Chinese Acad Sci, Inst Semicond, State Key Lab Integrated Optoelect, Beijing 100083, Peoples R China
[2] Univ Chinese Acad Sci, Coll Mat Sci & Optoelect Technol, Beijing 100083, Peoples R China
来源
IEEE PHOTONICS JOURNAL | 2023年 / 15卷 / 03期
基金
美国国家科学基金会;
关键词
Polarization-division-multiplexer; wavelength-division-multiplexer; microring; polarization rotator and splitter; silicon; DEMULTIPLEXER; MODE; TRANSMISSION; FILTER;
D O I
10.1109/JPHOT.2023.3266393
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
A 32-channel hybrid (de)multiplexer on silicon is designed and experimentally demonstrated to enable polarization division multiplexing (PDM) and wavelength division multiplexing (WDM) for improving the capacity of optical communication links. The hybrid (de)multiplexer is realized by monolithically integrating a polarization rotator and splitter (PRS) and two 16-channel microring resonators (MRRs) arrays. The through and cross ports of the PRS are connected to the bus waveguide of the MRR arrays, respectively. In order to ensure a larger free spectrum range (FSR) to cover all wavelength channels, the radius of the microring is about 3 mu m and the wavelength-channel spacing is 1.6 nm. For the hybrid (de)multiplexer, the crosstalk between the adjacent channels and the non-adjacent channels are -20 dB and -25 dB, respectively. When TE0 mode input, the insertion loss is 1.5 dB-3.8 dB, the crosstalk between the through and cross port is less than -24 dB. When TM0 mode inputs, the insertion loss is 1.9 dB-4.5 dB and the polarization crosstalk is less than -22 dB. In order to eliminate the influence of the fabrication errors and temperature on resonance wavelength, a TiN thermal tuning electrode is added to calibrate the deviation of the wavelength.
引用
收藏
页数:6
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