硅光子学
小型化
炸薯条
光子学
材料科学
栅栏
绝缘体上的硅
光电子学
光学
光纤布拉格光栅
多路复用器
光子集成电路
硅
波长
电子工程
多路复用
计算机科学
物理
电信
纳米技术
工程类
作者
Hongqiang Li,Xiangdong Ma,Beibei Cui,Youxi Wang,Cheng Zhang,Junfa Zhao,Zanyun Zhang,Chunxiao Tang,Enbang Li
出处
期刊:Optica
[The Optical Society]
日期:2017-06-20
卷期号:4 (7): 692-692
被引量:43
标识
DOI:10.1364/optica.4.000692
摘要
Silicon photonic integration is a means to produce an integrated on-chip fiber Bragg grating (FBG) interrogator. The possibility of integrating the light source, couplers, grating couplers, de-multiplexers, photodetectors (PDs), and other optical elements of the FBG interrogator into one chip may result in game-changing performance advances, considerable energy savings, and significant cost reductions. To the best of our knowledge, this paper is the first to present a hybrid silicon photonic chip based on III–V/silicon-on-insulator photonic integration for an FBG interrogator. The hybrid silicon photonic chip consists of a multiwavelength vertical-cavity surface-emitting laser array and input grating couplers, a multimode interference coupler, an arrayed waveguide grating, output grating couplers, and a PD array. The chip can serve as an FBG interrogator on a chip and offer unprecedented opportunities. With a footprint of 5 mm×3 mm, the proposed hybrid silicon photonic chip achieves an interrogation wavelength resolution of approximately 1 pm and a wavelength accuracy of about ±10 pm. With the measured 1 pm wavelength resolution, the temperature measurement resolution of the proposed chip is approximately 0.1°C. The proposed hybrid silicon photonic chip possesses advantages in terms of cost, manufacturability, miniaturization, and performance. The chip supports applications that require extreme miniaturization down to the level of smart grains.
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