Microwave and Optical Technology Letters · 2004 · 13 citations · 8 references
EngineeringElectrical EngineeringOptical MaterialsPhotonicsSensorsOptical SensingOptical SensorsSpectral SensitivityTemperature MeasurementTemperature SensorsThermal SensorsBragg Grating SensorsDiffraction GratingsSensor ApplicationsSpectral Response CharacterizationTemperature Profiling
Abstract Long‐period gratings, which display sensitivity to ambient temperature variations, are proposed as sensors. Therefore, full temperature characterisation is essential. In this paper, the effects of temperature upon the spectral profiles of two sets of long period gratings (LPGs) of different periods are investigated. The results obtained show that the shorter‐period LPGs were found to be less sensitive than the longer‐period LPGS over identical temperature ranges. The coupling wavelength shifts due to temperature are also seen to be linear and in opposite directions in each set of LPGs. © 2004 Wiley Periodicals, Inc. Microwave Opt Technol Lett 42: 402–405, 2004; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20317
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T. Erdoğan · Journal of Lightwave Technology · 1997 · 3.3K citations
Long-period fiber gratings as band-rejection filters
Ashish M. Vengsarkar, P. J. Lemaire, Justin B. Judkins et al. · Journal of Lightwave Technology · 1996 · 1.8K citations
Optical fiber long-period grating sensors
Vikram Bhatia, Ashish M. Vengsarkar · Optics Letters · 1996 · 1.1K citations