KTA Crystal

NLO crystals

KTA Crystal

Potassium Titanyle Arsenate(KTiOAsO4), or KTA crystal, 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 conductivities result in higher damage threshold compared with KTP .

Advantages:

• Large nonlinear optical and electro-optical coefficients

• Wide angular bandwidth and small walk-off angle

• Broad temperature and spectral bandwidth

• Low dielectric constants, loss tangent and ionic conductivities (much less than that of KTP)

• High damage threshold

• Lower absorption and high transmission in the 3-4 µm spectrum range than KTP.

• Highly resistant to high intensity laser radiation

KTA's Applications

• An excellent NLO crystal developed mainly for Optical Parametric Oscillation (OPO)

• Frequency Doubling (SHG @1083nm-3789nm)

• Sum and Difference Frequency Generation (SFG)/(DFG)

• NCPM cut 1064--->1533+3475 (type I Theta=90deg., phi=0deg.)

KTA specification:

Tolerance of cutting angle	△θ≤±0.25°,△φ≤±0.25°
Tolerance of dimension	Dimension+/-0.1 mm，L：±0.1mm
Flatness	λ/8 @ 632.8nm
Wavefront distortion	λ/8@ 632.8nm
Surface quality	10/5 per MIL-O-13830A
Parallelism	10″
Perpendicularity	5′
Bevel/chamfer	<0.1mm@45deg.
Chips	<0.1mm
CA	>95%
Coating	AR/HR coating Upon customer’s request
Damage Threshold	750MW/CM² at 1064nm, TEM00, 10ns, 10Hz
Warranty	One year under proper use

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