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KTA
 

KTA Crystal, is an excellent nonlinear optical crystal for Optical Parametric Oscillation (OPO) Application. OPO devices based on KTAs are reliable, solid state sources of tunable laser radiation exhibiting energy conversion efficiencies above 50%. In addition KTA has a very high damage threshold.
In comparison to KTP, KTA crystals feature large non-linear optical and electro-optical coefficients and have significantly reduced absorption in the 2.0 - 5.0 m range. Its low dielectric constants, low loss tangent and ionic conductivities are orders of magnitude less than that of KTP.

Related Products:

 
Specification
Dimension tolerance: +/-0.1mm
Flatness: <l/8 @633nm
Surface quality: Scratch/Dig:10/5
Parallelism: better than 30 arc sec
Perpendicularity: better than 30 arc min
Angle tolerance: Dq< 0.5° Df< 0.5°
AR coating: AR coatings
Clear aperture: >90% central area
Transmitting wave front distortion: less than l/8 @ 633nm

Advantage:
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


The Sellmeier equations ( in μm ):
nx2=1.90713+1.235222/(2-0.196922)-0.010252

ny2=2.15912+1.000992/(2-0.218442)-0.010962
nz2=2.14768+1.295592/(2-0.227192)-0.014362


Application:
An excellent NLO crystal developed mainly for Optical Parametric Oscillation (OPO).
Frequency Doubling (SHG @1083nm-3789nm).
Sum and Difference Frequency Generation (SFG)/(DFG) .
Optical waveguides for integrated NLO and E-O devices.

 
Standard Products (KTA)
Part Number
Dimension
Application
Coating
KTA4825
4x8x25mm
OPO for 1064nm&1540
AR Coating

KTA5517

5x5x17mm
OPO for 1064nm&1540
AR Coating

KTA6619

6.5x6.5x19mm
OPO for 1064nm&1540
AR Coating
KTA7710
7x7x10mm
OPO for 1064nm&1540
AR Coating
KTA7720
7x7x20mm
OPO for 1064nm&1540
AR Coating
KTA101014
10x10x14mm
OPO for 1064nm&1540
AR Coating
KTA101015
10x10x15mm
OPO for 1064nm&1540
AR Coating
KTA101017
10x10x17mm
OPO for 1064nm&1540
AR Coating

KTA101020

10x10x20mm
OPO for 1064nm&1540
AR Coating

KTA121230

12x12x30mm
OPO for 1064nm&1540
AR Coating