Thermal stabilization of a fiber-based channeled spectropolarimetry
作者: Ali AltaquiMichael W. Kudenov
作者单位: 1North Carolina State University
刊名: Optical Engineering, 2019, Vol.58 (12), pp.124102-124102
来源数据库: SPIE-the International Society for Optical Engineering
DOI: 10.1117/1.OE.58.12.124102
关键词: SpectropolarimetryOptical fiberSpectroscopyPolarimetryOptical metrology
原始语种摘要: Channeled spectropolarimetry (CSP) is a spectral modulation technique that furnishes snapshot polarimetric measurements. Among the different spectropolarimetric methods, fiber-based techniques are fundamental requirements in specific biomedical procedures, such as endoscopy. However, the optical fiber exhibits high sensitivity to temperature changes, which subsequently incurs errors in the polarimetric reconstructions. We present a calibration technique for fiber-based CSP that leverages phase-shifting interferometry (PSI) to acquire and demodulate the fiber’s retardation phase accurately. This technique provides high robustness against temperature variations and improved polarimetric reconstruction performance. Experimental results demonstrated that the PSI calibrations offer higher...
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关键词翻译
关键词翻译
  • fiber 纤维
  • technique 技术
  • metrology 度量衡学
  • reconstruction 复原
  • robustness 坚固性
  • biomedical 生物医学
  • optical 光学的
  • demodulate 解调
  • fundamental 基本的
  • temperature 温度