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Yoshio IDA Ken'ichi HAYASHI Kazuo ARAI Masahiko JINNO
An all-fibre sensing system having both a high handling capability and an enhanced stability has been developed by introducing a tapered fibre to laser coupling, fibre polarizers, and a threefold switching of laser injection current. Possible factors responsible for erroneous measurement are also inspected and the resultant error is estimated less than 0.01 K.