Effect of polarization sensitivity on ultrasmall silicon-on-insulator-based arrayed waveguide grating for fiber Bragg grating sensor interrogation

Hongqiang Li; Rui Xie; Yanhua Hong; Zanyun Zhang; Cheng Zhang; Chunxiao Tang; Enbang Li

doi:10.1117/1.OE.57.6.065103

27 June 2018 Effect of polarization sensitivity on ultrasmall silicon-on-insulator-based arrayed waveguide grating for fiber Bragg grating sensor interrogation

Hongqiang Li, Rui Xie, Yanhua Hong, Zanyun Zhang, Cheng Zhang, Chunxiao Tang, Enbang Li

Author Affiliations +

Optical Engineering, Vol. 57, Issue 6, 065103 (June 2018). https://doi.org/10.1117/1.OE.57.6.065103

Abstract

Polarization sensitivity is an important factor that affects the interrogation of ultrasmall arrayed waveguide grating (AWG) for fiber Bragg grating (FBG) sensor. An ultrasmall 1 × 8 silicon-on-insulator (SoI) AWG with a core size of less than 530 μm × 480 μm is proposed in this study. This ultrasmall SoI AWG exhibits good transmission spectra and high polarization sensitivity. The increased channel numbers and tight structure increase the polarization sensitivity of AWG. Temperature interrogation experiments show that the FBG sensor interrogation is drastically affected when the effect of polarization sensitivity on the ultrasmall AWG is sufficiently large.

Citation Download Citation

Hongqiang Li, Rui Xie, Yanhua Hong, Zanyun Zhang, Cheng Zhang, Chunxiao Tang, and Enbang Li "Effect of polarization sensitivity on ultrasmall silicon-on-insulator-based arrayed waveguide grating for fiber Bragg grating sensor interrogation," Optical Engineering 57(6), 065103 (27 June 2018). https://doi.org/10.1117/1.OE.57.6.065103

Received: 6 March 2018; Accepted: 5 June 2018; Published: 27 June 2018

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