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Reflectometry by means of optical-coherence modulation

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2 Author(s)
Hotate, K. ; Res. Center for Adv. Sci. & Technol., Tokyo Univ., Japan ; Kamatani, O.

Novel reflectometry with millimetre or submillimetre spatial resolution is proposed to evaluate optical components or circuits. The optical coherence is modulated to have a periodic delta-function shape along the optical path, and the backscattering intensity is obtained directly. The experiment demonstrates a resolution of about 10 mm in air with a Fabry-Perot laser diode.

Published in:

Electronics Letters  (Volume:25 ,  Issue: 22 )