2 meter resolution Raman-assisted BOTDA temperature sensor over 100 km with 1.2 ºC uncertainty
نویسندگان
چکیده
منابع مشابه
Raman-assisted DPP-BOTDA sensor employing Simplex coding with sub-meter scale spatial resolution over 93 km standard SMF
Differential pulse-width-pair BOTDA technique is combined with bi-directional Raman amplification and Simplex coding to achieve sub-meter spatial resolution over very long sensing distances. Numerical simulations are used to optimize the power levels of the Raman pumps, avoiding nonlinear effects and pump depletion. Distortions in the Brillouin gain spectrum due to acoustic-wave pre-excitation ...
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ژورنال
عنوان ژورنال: Optica Pura y Aplicada
سال: 2012
ISSN: 2171-8814,0030-3917
DOI: 10.7149/opa.45.2.145