Compact 2×2 parabolic multimode interference thermo-optic switches based on fluorinated photopolymer

doi:10.1088/1674-1056/28/4/044207

Abstract

In this work, a dual-side parabolic structural (DSPS) multimode interference (MMI) thermo-optic (TO) waveguide switch is designed and fabricated by using novel low-loss fluorinated photopolymer materials. Comparing with the traditional dual-side linear structural (DSLS) MMI device, the effective length of the MMI coupling region proposed can be effectively reduced by 40%. The thermal stability of the waveguide material is analyzed, and the optical characteristics of the switching chip are simulated. The actual performances of the entire MMI switch are measured with an insertion loss of 7 dB, switching power of 15 mW and an extinction ratio of 28 dB. In contrast to the traditional MMI optical switch, the new type of parabolic structural MMI TO waveguide switch exhibits lower power consumption and larger extinction ratio. The compact fluorinated polymer MMI TO switches are suitable well for realizing miniaturization, high-properties, and lower cost of photonic integrated circuits.

Keywords: fluorinated photopolymer materials parabolic structural MMI thermo-optic waveguide switches

Received: 16 August 2018
Revised: 18 January 2019
Accepted manuscript online:

PACS:	42.79.Gn	(Optical waveguides and couplers)
	42.79.Ta	(Optical computers, logic elements, interconnects, switches; neural networks)
	72.80.Le	(Polymers; organic compounds (including organic semiconductors))

Fund:

Project supported by the National Key Research and Development Program of China (Grant No. 2016YFB0402502), the National Natural Science Foundation of China (Grant Nos. 61575076, 61475061, 61605057, and 61675087), and the Jilin Provincial Industrial Innovation Special Fund Project, China (Grant No. 2016C019).

Corresponding Authors: Da-Ming Zhang
E-mail: zhangdm@jlu.edu.cn

Cite this article:

Ji-Hou Wang(王继厚), Chang-Ming Chen(陈长鸣), Ke-Wei Hu(胡珂玮), Ru Cheng(程儒), Chun-Xue Wang(王春雪), Yun-Ji Yi(衣云骥), Xiao-Qiang Sun(孙小强), Fei Wang(王菲), Zhi-Yong Li(李智勇), Da-Ming Zhang(张大明) Compact 2×2 parabolic multimode interference thermo-optic switches based on fluorinated photopolymer 2019 Chin. Phys. B 28 044207

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Compact 2×2 parabolic multimode interference thermo-optic switches based on fluorinated photopolymer

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