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Ultra-Compact Mode-Division Multiplexed Photonic Integrated Circuit for Dual Polarizations

Polarization and mode division multiplexing are powerful tools for large-capacity parallel optical communications. Dual-polarization and mode-division multiplexed silicon photonic integrated circuit with ultra-small footprint is proposed and experimentally demonstrated. The circuits consist of a mode multiplexer, 3-dB power splitter and two demultiplexers which can simultaneously handle TE 0 , TE 1 , TM 0 and TM 1 mode. Compared with conventional device structure, the device footprint is scaled down via pixelated waveguide meta-structure. The mode multiplexer and the splitter have a footprint of only 6.8 μm × 6 μm and 6 μm × 5.25 μm, respectively. The fabrication tolerance on the nanohole size variations are studied, and the fabricated devices are systematically characterized. The measured insertion losses of the multiplexer and 3-dB power splitter are below 1.4 dB and 4.5 dB for all four modes within the wavelength range from 1530 nm-1570 nm. In the meantime, the measured maximum inter-mode cross talk is below -15 dB over a 30 nm bandwidth. The experimental results also indicate the power imbalance of the splitter is within 0.4 dB from 1530 nm-1570 nm. Since the demonstrated polarization and mode handling devices via pixelated meta-structures occupy significantly smaller chip area than conventional wisdoms, this work shows the potential for large scale and dense integration of polarization and mode division multiplexing system on photonic chip.

Ketersediaan

Informasi Detail

Judul Seri

JOURNAL OF LIGHTWAVE TECHNOLOGY; Vol.39 No.18 September 15 2021

No. Panggil

-

Penerbit

: .,

Deskripsi Fisik

p. 5925-5932

Bahasa

English

ISBN/ISSN

-

Klasifikasi

NONE

Tipe Isi

-

Tipe Media

-

Tipe Pembawa

-

Edisi

-

Subjek

PHOTONIC INTEGRATED CIRCUITS
SILICON PHOTONICS
MULTIMODE
MODE (DE)MULTIPLEXER
DUAL-POLARIZATION

Info Detail Spesifik

DOI: 10.1109/JLT.2021.3092941

Pernyataan Tanggungjawab

Yingjie Liu, Zi Wang, Yilin Liu, Xi Wang, Xiaoyuan Guo, Dongliang Li, Yang Yao, Qinghai Song, Jiangbing Du, Zuyuan He, Ke Xu

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