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KTP Crystal
KTP (Potassium Titanyl Phosphate, KTiOPO4) is a nonlinear optical material generally used for doubling of solid-state lasers, such as Nd:YAG. The crystal has a relatively high optical damage threshold, a large optical nonlinearity of second-harmonic generation (SHG) and excellent thermal stability. Its SHG coefficient is approximately three times higher than KDP, and it is often used as an optical parametric oscillator (OPO) for near IR generation up to 3 µm.
Large nonlinear optical coefficient
Wide angular bandwidth and small walk-off angle
Broad temperature and spectral bandwidth
High electro-optic coefficient and low dielectric constant
Large figure of merit
Non-hydroscopic, chemically and mechanically stable
High thermal conductivity
Moisture free
Minimum mismatch gradient
Low cost compare with BBO and LBO
Wide angular bandwidth and small walk-off angle
Broad temperature and spectral bandwidth
High electro-optic coefficient and low dielectric constant
Large figure of merit
Non-hydroscopic, chemically and mechanically stable
High thermal conductivity
Moisture free
Minimum mismatch gradient
Low cost compare with BBO and LBO
Specification of KTP
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Dimension Tolerance
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(W±0.1mm) x (H±0.1mm) x (L+0.2/-0.1 mm) (L≥2mm)
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(W±0.1mm) x (H±0.1mm) x (L±0.1 mm) (L<2mm)
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Absorption
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<0.01%@1064nm, <1%@532nm
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Cutting Angle Tolerance
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Dq< ±0.2°, Df< ±0.2°
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Wavefront Distortion
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<λ/8 @632.8 nm
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Chamfer
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≤ 0.15 mm x 45°
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Perpendicularity
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< 5 arc minutes
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Parallelism
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< 20 arc seconds
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Flatness
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<λ/10 @633 nm
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Scratch/Dig
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10/5 per MIL-PRF-13830B
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Clear Aperture
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> Central 90%
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Antireflection Coating
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R < 0.2% @1064nm, R < 0.5% @532nm
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Application: SHG@1064nm,
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Part No
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W
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H
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L
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θ
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φ
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Coating
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KTP-3305S1
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3
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3
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5
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90
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23.5
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AR/AR1064&532nm
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KTP-3310S1
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3
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3
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10
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90
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23.5
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AR/AR1064&532nm
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KTP-4405S1
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4
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4
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5
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90
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23.5
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AR/AR1064&532nm
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KTP-4410S1
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4
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4
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10
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90
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23.5
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AR/AR1064&532nm
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KTP-5505S1
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5
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5
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5
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90
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23.5
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AR/AR1064&532nm
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KTP-5510S1
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5
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5
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10
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90
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23.5
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AR/AR1064&532nm
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KTP-6605S1
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6
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6
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5
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90
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23.5
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AR/AR1064&532nm
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KTP-6608S1
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6
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6
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8
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90
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23.5
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AR/AR1064&532nm
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KTP-7705S1
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7
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7
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5
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90
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23.5
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AR/AR1064&532nm
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KTP-7707S1
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7
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7
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7
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90
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23.5
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AR/AR1064&532nm
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KTP-8804S1
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8
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8
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4
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90
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23.5
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AR/AR1064&532nm
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KTP-8808S1
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8
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8
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8
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90
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23.5
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AR/AR1064&532nm
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KTP-9905S1
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9
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9
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5
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90
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23.5
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AR/AR1064&532nm
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KTP-9907S1
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9
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9
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6
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90
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23.5
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AR/AR1064&532nm
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KTP-101005S1
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10
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10
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5
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90
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23.5
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AR/AR1064&532nm
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KTP-101006S1
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10
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10
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6
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90
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23.5
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AR/AR1064&532nm
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KTP-131305S1
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13
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13
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5
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90
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23.5
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AR/AR1064&532nm
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KTP-131306S1
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13
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13
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6
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90
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23.5
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AR/AR1064&532nm
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Application: OPO 1064nm
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Part No
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W
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H
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L
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θ
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φ
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Coating
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KTP-3310O1
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3
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3
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10
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90
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0
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AR/AR1064&1570nm
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KTP-3320O1
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3
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3
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20
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90
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0
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AR/AR1064&1570nm
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KTP-4415O1
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4
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4
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15
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90
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0
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AR/AR1064&1570nm
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KTP-4420O1
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4
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4
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20
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90
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0
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AR/AR1064&1570nm
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KTP-5515O1
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5
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5
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15
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90
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0
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AR/AR1064&1570nm
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KTP-5520O1
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5
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5
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20
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90
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0
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AR/AR1064&1570nm
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KTP-6620O1
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6
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6
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20
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90
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0
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AR/AR1064&1570nm
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KTP-7720O1
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7
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7
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20
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90
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0
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AR/AR1064&1570nm
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KTP-8820O1
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8
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8
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20
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90
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0
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AR/AR1064&1570nm
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KTP-101020O1
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10
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10
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20
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90
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0
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AR/AR1064&1570nm
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