Promising Materials for High Power Laser Isolators
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Promising Materials for High Power Laser Isolators
- Author:
Kevin T. Stevens, Wolfgang Schlichting, Gregory Foundos, Alexis Payne and Evan Rogers
Northrop Grumman Synoptics is developing the growth of large singlecrystal fluoride materials for Faraday rotator / isolator applications. These materials exhibit smaller nonlinear refractive index and thermo-optic coefficients, while maintaining Verdet constants near those of the commonly used terbium gallium garnet (TGG) crystals. In particular, the cubic potassium terbium fluoride, KTF (KTb3F10) crystal has low absorption and thermo-optic coefficients.
