Introduction

Potassium Titanyl Arsenate (KTiOAsO₄ or KTA) is an excellent nonlinear optical crystal for Optical Parametric Oscillation (OPO) application. It has better non-linear optical and electro-optical coefficients, significantly reduced absorption in the 2.0-5.0 µm region, broad angular and temperature bandwidth, low dielectric constants. And its low ionic conductivity results in higher damage threshold compared with KTP.

CASTECH offers KTA

• Crystal length from 0.1mm to 30 mm and size up to 10 × 10 × 30 mm3
• AR-coating from visible to 3300 nm
• Re-polishing, re-coating service
• Fast delivery (15 working days for polished only, 20 working days for AR-coated)

Table 1. Chemical and Structural Properties

Table 2. Optical and Nonlinear Optical Properties