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基于等效啁啾四相移采样布拉格光栅的宽可调谐光子滤波器

Widely Tunable Photonic Filter Based on Equivalent Chirped Four-Phase-Shifted Sampled Bragg Gratings.

作者信息

Zhu Simeng, Yuan Bocheng, Al-Rubaiee Mohanad, Sun Yiming, Fan Yizhe, Hezarfen Ahmet Seckin, Sweeney Stephen J, Marsh John H, Hou Lianping

机构信息

James Watt School of Engineering, University of Glasgow, Glasgow G12 8QQ, U.K.

出版信息

ACS Photonics. 2025 Jan 27;12(2):899-907. doi: 10.1021/acsphotonics.4c01899. eCollection 2025 Feb 19.

DOI:10.1021/acsphotonics.4c01899
PMID:39989928
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11843717/
Abstract

We have developed an integrated dual-band photonic filter (PF) utilizing equivalent chirped four-phase-shifted sidewall-sampled Bragg gratings (4PS-SBG) on a silicon-on-insulator platform. Using the reconstruction equivalent-chirp technique, we designed linearly chirped 4PS Bragg gratings with two π-phase shifts (π-PSs) positioned at 1/3 and 2/3 of the grating cavity, introducing two passbands in the + first order channel. Leveraging the significant thermo-optic effect of silicon, dual-band tuning is achieved through integrated microheaters (MHs) on the chip surface. By varying the injection currents from 0 to 85 mA into the MHs, the device demonstrates continuous and wide-range optical frequency division performance, with the frequency interval between the two passbands adjustable from 52.1 to 439.5 GHz. Four notable frequency division setups at 100, 200, 300, and 400 GHz were demonstrated using a 100 GHz, 1535 nm semiconductor passive mode-locked laser as the light source.

摘要

我们在绝缘体上硅平台上开发了一种集成双波段光子滤波器（PF），它利用了等效啁啾四相移侧壁采样布拉格光栅（4PS-SBG）。使用重构等效啁啾技术，我们设计了线性啁啾4PS布拉格光栅，在光栅腔的1/3和2/3位置有两个π相移（π-PS），在正一阶通道中引入了两个通带。利用硅显著的热光效应，通过芯片表面的集成微加热器（MH）实现双波段调谐。通过改变注入到MH中的电流从0到85 mA，该器件展示出连续且宽范围的光频分性能，两个通带之间的频率间隔可在52.1至439.5 GHz之间调节。使用100 GHz、1535 nm半导体无源锁模激光器作为光源，展示了在100、200、300和400 GHz的四种显著的分频设置。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a271/11843717/57ba80c5caf8/ph4c01899_0007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a271/11843717/eabbe8e32b25/ph4c01899_0001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a271/11843717/053ade938851/ph4c01899_0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a271/11843717/eeaf85a9ff36/ph4c01899_0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a271/11843717/82795c819697/ph4c01899_0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a271/11843717/5befed0a3829/ph4c01899_0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a271/11843717/03ac96993144/ph4c01899_0006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a271/11843717/57ba80c5caf8/ph4c01899_0007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a271/11843717/eabbe8e32b25/ph4c01899_0001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a271/11843717/053ade938851/ph4c01899_0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a271/11843717/eeaf85a9ff36/ph4c01899_0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a271/11843717/82795c819697/ph4c01899_0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a271/11843717/5befed0a3829/ph4c01899_0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a271/11843717/03ac96993144/ph4c01899_0006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/a271/11843717/57ba80c5caf8/ph4c01899_0007.jpg

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本文引用的文献

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氮化硅光子电路中的引导声激发布里渊散射
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