Femtosecond time division interferometry technique for measuring the tensor components of χ(3)
Journal
Applied Physics Letters
Journal Volume
60
Journal Issue
5
Pages
533-535
Date Issued
1992
Author(s)
Abstract
We describe a new femtosecond time division interferometry technique for characterizing nonlinear index changes from different components of the χ(3) tensor. Pump probe interferometric measurements of nonlinear phase are performed using a time division multiplexed reference pulse. The n2∥ and n2⊥ components of the nonlinear index are measured by permuting the polarizations of the pulses and using a novel differential detection and modulation scheme. Measurements are demonstrated in an optical fiber.
SDGs
Type
journal article