Nondestructive method for attenuation measurements in optical hollow waveguides

R. Dahan, J. Dror, A. Inberg, N. Croitoru

Research output: Contribution to journalArticlepeer-review


A new method for characterizing hollow waveguides has been developed in which the laser radiation is coupled into the waveguide hollow bore through an optical fiber. By moving the distal end of the f iber along the waveguide we achieved scanning of the incident radiation in the waveguide at various points on the internal walls. This method can be employed for measuring attenuation without cutback or for detecting point defects on the waveguide’s guiding layers.

Original languageEnglish
Pages (from-to)1536-1537
Number of pages2
JournalOptics Letters
Issue number14
StatePublished - 15 Jul 1995


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