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Large-signal phase retardation with a poled electrooptic fiber

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2 Author(s)
X. -C. Long ; Dept. of Phys. & Astron., New Mexico Univ., Albuquerque, NM, USA ; S. R. J. Brueck

A linear electrooptic coefficient of 0.3 pm/V is induced in a germanosilicate fiber by thermal/electric-field poling. Reducing the fiber thickness by simple mechanical polishing following the poling, leads to a half-wave drive voltage of only 75 V for a 12-cm active length with no measurable linear optical loss in the fiber. The induced linear electrooptic coefficient shows no decay at room temperature for over four months, and only a 10% decay after heating to 90/spl deg/C for 1000 h.

Published in:

IEEE Photonics Technology Letters  (Volume:9 ,  Issue: 6 )