Raman Gain Distribution Measurement Employing Reference Optical Fiber

Kunihiro TOGE  Kazuo HOGARI  Tsuneo HORIGUCHI  

IEICE TRANSACTIONS on Communications   Vol.E86-B    No.11    pp.3293-3295
Publication Date: 2003/11/01
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Optical Fiber
optical fiber,  optical fiber testing,  Raman amplifier,  Raman gain efficiency,  distribution measurement,  

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This letter proposes a novel technique for evaluating the longitudinal distribution of the Raman gain characteristics in optical fibers connected to a reference optical fiber with a known Raman gain efficiency. This technique can evaluate the Raman gain efficiency in test fibers using a simplified experimental setup. We performed experiments on various test fibers and confirmed that their Raman gain efficiency can be obtained easily and accurately by employing a reference fiber.