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Conferences > UP > 2014 > 10.Thu.C > 10.Thu.C.4

Simultaneous Spatial and Temporal Focusing of Femtosecond Laser Pulses for Directly Writing Optical Waveguides in Pr3+ doped ZBLAN Glass

Y. Yamanaka, K. Hirosawa, and F. Kannari

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Abstract

We present characteristics of optical waveguides fabricated in Pr3+ doped ZrF4-BaF2-LaF3-AlF3-NaF (Pr:ZBLAN) glass using simultaneous spatial and temporal focusing (SSTF) of femtosecond laser pulses. Thanks to SSTF, the axial two-photon excitation length is confined to ~20 μm. A primitive example of waveguide shows an NA of ~0.015 and a propagation loss of 0.56dB/cm.

© 2014 Optical Society of America

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