Temperature drift compensation in Fourier-transform integrated micro-spectrometers

被引:0
作者
Velasco, A. V. [1 ]
Galindo-Santos, J. [1 ]
Cheben, P. [2 ]
Calvo, M. L. [3 ]
Schmid, J. [2 ]
Delage, A. [2 ]
Xu, Dan-Xia [2 ]
Janz, S. [2 ]
Corredera, P. [1 ]
机构
[1] CSIC, Inst Opt, Madrid 28006, Spain
[2] Natl Res Council Canada, Ottawa, ON K1A 0R6, Canada
[3] Univ Complutense Madrid, Fac Ciencias Fis, E-28040 Madrid, Spain
来源
OPTICA PURA Y APLICADA | 2015年 / 48卷 / 04期
关键词
integrated optics; spectroscopy; Fourier transform; Silicon on insulator; temperature drift; spectral retrieval;
D O I
10.7149/OPA.48.4.283
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
In this work, we analyze the effect of temperature drifts in a spatial heterodyne Fourier-transform micro-spectrometer fabricated in a Silicon-on-insulator chip. The device comprises an array of 32 Mach-Zehnder interferometers implemented with microphotonic spirals of linearly increasing length. This configuration provides a resolution of 42 pm in a footprint under 12 mm(2). However, this resolution enhancement implies a greater sensitivity to environmental variations during the spectrometer operation. In this work, the effect of temperature drifts in the spectral retrieval algorithm is studied, and compensation techniques based on multiple calibration matrices is presented.
引用
收藏
页码:283 / 289
页数:7
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