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Widely tunable filter based on coupling between a side-polished fiber and a tapered planar waveguide

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4 Author(s)
Kim, K.T. ; Dept. of Electron. & Photonic Eng., Honam Univ., Gwangju, South Korea ; Hwangbo, S. ; Mah, J.P. ; Sohn, K.R.

We demonstrate a tunable filter with a wide tunable wavelength range (>300 nm) based on coupling between a side-polished fiber and a tapered planar waveguide (PWG). The thickness variation, due to sliding of the upper block, of taper PWG on the side-polished fiber region shifted the resonance wavelength of the coupler. Design and fabrication technique are presented.

Published in:

Photonics Technology Letters, IEEE  (Volume:17 ,  Issue: 1 )