Title :
Large-signal phase retardation with a poled electrooptic fiber
Author :
Long, X.C. ; Brueck, S.R.J.
Author_Institution :
Dept. of Phys. & Astron., New Mexico Univ., Albuquerque, NM, USA
fDate :
6/1/1997 12:00:00 AM
Abstract :
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.
Keywords :
electro-optical effects; electro-optical modulation; electro-optical switches; germanate glasses; optical fibre losses; optical glass; phase modulation; 1000 h; 12 cm; 75 V; 90 degC; GeO/sub 2/-SiO/sub 2/; active length; fiber thickness; germanosilicate fiber; half-wave drive voltage; heating; induced linear electrooptic coefficient; large-signal phase retardation; linear electrooptic coefficient; linear optical loss; mechanical polishing; poled electrooptic fiber; poling; room temperature; thermal/electric-field poling; Glass; High speed optical techniques; Low voltage; Optical fiber devices; Optical fiber polarization; Optical fiber sensors; Optical filters; Optical modulation; Optical sensors; Physics;
Journal_Title :
Photonics Technology Letters, IEEE
