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SOI-Based Multi-Channel AWG with Fiber Bragg Grating Sensing Interrogation System
| Content Provider | MDPI |
|---|---|
| Author | Weng, Siming Yuan, Pei Zhuang, Wei Zhang, Dongliang Luo, Fei Zhu, Lianqing |
| Copyright Year | 2021 |
| Description | For the development of minimized and high-rate photonic-integrated fiber Bragg grating interrogation (FBGI) systems, arrayed waveguide grating (AWG) has been widely used as one of the critical components. In this paper, we present an 8-channel SOI-based AWG for a photonic integrated FBG interrogation microsystem. The channel spacing of the AWG is designed to be 3 nm to meet a high-dynamic-range demodulation requirement. The core size of the fabricated AWG is about 335 × 335 $μm^{2}$. The simulation results and experimental results are in high agreement, showing that AWG has a fine transmission spectrum with crosstalk below −16 dB, nonuniformity below 0.4 dB, insertion loss below −6.35 dB, 3 dB bandwidth about 1.3 nm and 10 dB bandwidth of 2.3 nm. The proposed AWG can be applied perfectly to the SOI-based AWG demodulation microsystem, exhibiting a large dynamic range of 1.2 nm, the resolution for measurements is 1.27 pm and a high accuracy of 20.6 pm. |
| Starting Page | 214 |
| e-ISSN | 23046732 |
| DOI | 10.3390/photonics8060214 |
| Journal | Photonics |
| Issue Number | 6 |
| Volume Number | 8 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2021-06-10 |
| Access Restriction | Open |
| Subject Keyword | Photonics Telecommunications Arrayed Waveguide Grating Silicon-on-insulator (soi) Fiber Bragg Grating (fbg) |
| Content Type | Text |
| Resource Type | Article |
