Shalom

Specifications

Clear aperture

central 90% of the diameter

Internal quality

No visible scattering paths or centers when inspected by a 50mW green laser

Flatness

less than λ/8 @ 633nm

Transmitting wavefront distortion

less than λ/8 @ 633nm

Chamfer

≤0.2mm at 45°

Chip

≤0.1mm

Scratch/Dig code

better than 10/ 5 to MIL-PRF-13830B

Parallelism

better than 20 arc seconds

Perpendicularity

≤5 arc minutes

Angle tolerance

Δθ≤0.25°, Δφ≤0.25°

Quality Warranty Period:

one half year under proper use.

Optical and Nonlinear Optical properties

Transparency Range

350～4500nm

SHG Phase Matchable Range

497～1800nm (Type II)

Therm-optic Coefficients
(/°C)

dnx/dT=1.1X10^-5
dny/dT=1.3X10^-5
dnz/dT=1.6X10^-5

Absorption Coefficients

<0.1%/cm at 1064nm <1%/cm at 532nm

For Type II SHG of a Nd:YAG laser at 1064nm

Temperature Acceptance: 24°C-cm
Spectral Acceptance: 0.56nm-cm
Angular Acceptance: 14.2mrad-cm (φ);55.3mrad-cm (θ)
Walk-off Angle: 0.55°

NLO Coefficients

deff(II)≈(d24-d15)sin2φsin2θ-(d15sin²φ + d24cos²φ)sinθ

Non-vanished NLO susceptibilities

d31=6.5 pm/V d24=7.6 pm/V
d32=5 pm/V d15=6.1 pm/V
d33=13.7 pm/V

Sellmeier Equations
(λ in μm)

nx2=3.0065+0.03901/(λ²-0.04251)-0.01327λ ²
ny2=3.0333+0.04154/(λ ²-0.04547)-0.01408λ²
nz2=3.3134+0.05694/(λ ²-0.05658)-0.01682λ²