First demonstration of a double cladding optical fiber utilizing a graded index multimode inner cladding and a single mode core for enhancing downhole distributed sensing techniques
2021
A new type of double cladding optical fiber has been demonstrated utilizing a GRIN MM inner cladding and an SM core to allow DTS, DSTS and DAS within a single optical fiber. DAS and DTS results are experimentally proven possible with this novel fiber design.
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