Temperature dependence mitigation in stationary Fourier-transform on-chip spectrometers
نویسندگان
چکیده
منابع مشابه
Temperature dependence mitigation in stationary Fourier-transform on-chip spectrometers.
We present two techniques for mitigating the effects of temperature drifts in waveguide spatial heterodyne Fourier-transform on-chip spectrometers. In high-resolution devices, large optical path length differences result in an increased sensitivity to temperature variations and impose stringent requirements on the thermal stabilization system. In order to overcome this limitation, here we exper...
متن کاملInverse problem approaches for stationary Fourier transform spectrometers.
A design of a miniaturized stationary Fourier transform IR spectrometer has been developed that produces a two-dimensional interferogram. The latter is disturbed by effects like parasitic interferences or disparities in the cutoff wavelength of the pixels. Thus, a simple Fourier transform cannot be used to estimate the spectrum of the scene. However, as these defects are deterministic, they can...
متن کاملThe Effects of Temporally Changing Sources on Fourier Transform Spectrometers
A Michelson Fourier Transform Spectrometer senses an object/material in the time domain, producing an interferogram. To produce a spectrum, the interferogram is Fourier transformed into the spectral domain. Unless filtering is applied to the interferogram, all the time changing (AC) components of the interferogram contribute to the resulting spectrum. Aperiodic signals are not easily removed fr...
متن کاملGas Measurement Using Static Fourier Transform Infrared Spectrometers
Online monitoring of gases in industrial processes is an ambitious task due to adverse conditions such as mechanical vibrations and temperature fluctuations. Whereas conventional Fourier transform infrared (FTIR) spectrometers use rather complex optical and mechanical designs to ensure stable operation, static FTIR spectrometers do not require moving parts and thus offer inherent stability at c...
متن کاملA 64 point fourier transform chip pdf
A 64-Point Fourier Transform Chip for High-Speed. Plications compared to the conventional radix-2 64-point FFT algorithm. Tbfft1V002.pdf. A 64-Point Fourier Transform Chip for Video. Motion Compensation Using Phase Correlation. Colin Chiu Wing Hui, Tiong Jiu Ding.A 64-point Fourier transform chip for high-speed wireless LAN application using OFDM. The core area of this chip is 6. 8 mm2.low-powe...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Optics Letters
سال: 2017
ISSN: 0146-9592,1539-4794
DOI: 10.1364/ol.42.002239