• Your shopping cart is empty!

Time Delay Compensators

Time Delay Compensators

Time delay compensators are made of calcite crystals or alpha-BBO crystals to compensate the time delay between two specified wavelengths with orthogonal polarizations.  The time delay between the fundamental pulses and harmonic pulses is introduced in a second harmonic generation (SHG) crystal as a result of the group velocity mismatch (GVM) in the crystal.  A time delay compensator generates an opposite GVM and therefore can be used to improve the overlap of the pulses for the subsequent process (e.g. third harmonic generation, THG in a second nonlinear crystal). 

The time delay is adjustable by rotation of  the compensator.  The specified delay ranges are based on a rotation of  ~ +/-12o (external).  A larger rotation can be applied for an extended delay range if there is no problem of beam clipping by the edge of the compensator.  
 

delay
material
wavelength
Product Compare (0)
Model Name delay material wavelength Price Availability Action
TDC12101-AR Calcite time delay compensator, 10-100fs between 800nm (o-ray) and 400nm (e-ray), AR@800/400nm, aperture 12.7mm, OD 1" 10-100fs Calcite 800/400nm USD$509.00 2-3 Days
TDC12102-AR Calcite time delay compensator, 80-270fs between 800nm (o-ray) and 400nm (e-ray), AR@800/400nm, aperture 12.7mm, OD 1" 80-270fs Calcite 800/400nm USD$509.00 Out Of Stock
TDC12105-AR Calcite time delay compensator, 250-600fs between 800nm (o-ray) and 400nm (e-ray), AR@800/400nm, aperture 12.7mm, OD 1" 250-600fs Calcite 800/400nm USD$519.00 Out Of Stock
TDC12108-AR Calcite time delay compensator, 580-1000fs between 800nm (o-ray) and 400nm (e-ray) , AR@800/400nm, aperture 12.7mm, OD 1" 580-1000fs Calcite 800/400nm USD$539.00 Out Of Stock
TDC12301-AR Calcite time delay compensator, 10-100fs between 1030nm (o-ray) and 515nm (e-ray), AR@1030/515nm, aperture 12.7mm, OD 1" 10-100fs Calcite 1030/515nm USD$509.00
TDC12302-AR Calcite time delay compensator, 80-270fs between 1030nm (o-ray) and 515nm (e-ray), AR@1030/515nm, aperture 12.7mm, OD 1" 80-270fs Calcite 1030/515nm USD$509.00 Out Of Stock
TDC12305-AR Calcite time delay compensator, 250-600fs between 1030nm (o-ray) and 515nm (e-ray), AR@1030/515nm, aperture 12.7mm, OD 1" 250-600fs Calcite 1030/515nm USD$519.00 2-3 Days
TDC12308-AR Calcite time delay compensator, 580-1000fs between 1030nm (o-ray) and 515nm (e-ray), AR@1030/515nm, aperture 12.7mm, OD 1" 580-1000fs Calcite 1030/515nm USD$539.00 Out Of Stock
TDB12703-AR a-BBO time delay compensator, 200-500fs between 600nm (o-ray) and 300nm (e-ray) , AR@600/300nm, aperture 12.7mm, OD 1" mounted 200-500fs a-BBO 600/300nm Ask Out Of Stock
TDB12102-AR a-BBO time delay compensator, 80-270fs between 800nm (o-ray) and 400nm (e-ray), AR@800/400nm, aperture 12.7mm, OD 1" 80-270fs a-BBO 800/400nm Ask Out Of Stock
TDB12105-AR a-BBO time delay compensator, 250-600fs between 800nm (o-ray) and 400nm (e-ray), AR@800/400nm, aperture 12.7mm, OD 1" 250-600fs a-BBO 800/400nm Ask Out Of Stock
TDB8305-AR a-BBO time delay compensator, 250-600fs between 1030nm (o-ray) and 515nm (e-ray), AR@1030/515nm, aperture 8.0mm, OD 1" mounted 250-600fs a-BBO 1030/515nm Ask Out Of Stock
Showing 1 to 12 of 12 (1 Pages)

 

Basic Properties of Calcite Crystal:
 

 Transparency Range: 350 - 2300 nm

material-ca.GIF (10982 bytes)

Transmission Curve
 Crystal Symmetry: Trigonal, R3c
 Lattice Constants: a=b=4,994A, c=17,081A
 Density:  2.71 g/cm3
 Optical Homogeneity: Δn < 10-6/cm
 Mohs Hardness: 3
 Thermal Expansion Coefficients:  αa = 4.9 x 10-6/K
 αc =  25.1 x 10-6/K
 Linear Absorption Coefficients: α<0.01cm-1 from 400 to 700 nm

 Sellmeier Equations: (λ in µm) :
  no2=2.69705 + 0.0192064/(λ2-0.01820)-0.0151624λ2 
  ne2=2.18438 + 0.0087309/(λ2-0.01018)-0.0024411λ2
 Wavelength(nm) no ne Birefringence
(Δn=ne-no)		 Walk-off Angle
 at 45°
1064 1.6423 1.4797 -0.162 5.93°
800 1.6487 1.4821 -0.166 6.06°
632.8 1.6557 1.4852 -0.171 6.18°
532 1.6629 1.4886 -0.174 6.30°
400 1.6823 1.4974 -0.185 6.61°
355 1.6951 1.5032 -0.192 6.82°


 

Basic Properties of alpha-BBO Crystal:
 

 Transparency Range: 189 - 3500 nm

material-abbo.GIF (11478 bytes)

Transmission Curve
 Crystal Symmetry: Hexagonal R3c

 Lattice Symmetry: a=b=7.2351A,c=39.192A
 Density: 3.85 g/cm3
 Thermo-Optic Coefficients:
 dno/dT= - 9.3 x 10-6 /oC
 dne/dT= - 1 6 .6 x 10-6/oC
 Optical Homogeneity: Δn < 10-6/cm
 Mohs Hardness: 4.5
 Thermal Expansion Coefficients
  (in the range of 25–900oC)		  αa = 4 x 10-6/K
 αc = 36 x 10-6/K
 Linear Absorption Coefficients: α<0.005cm-1 from 300 to 2300 nm

 Sellmeier Equations (λ in µm) :
 no2=2.7471+0.01878/(λ2-0.01822)-0.01354λ2
 ne2=2.3715+0.01224/(λ2-0.01667)-0.01516λ2
 Wavelength(nm) no ne Birefringence
(Δn=ne -no)		 Walk-off Angle
 at 45°
1550 1.6499 1.5298 -0.120 4.32°
1064 1.6579 1.5380 -0.120 4.29°
800 1.6639 1.5432 -0.121 4.30°
775 1.6647 1.5438 -0.121 4.30°
632.8 1.6706 1.5483 -0.122 4.34°
532 1.6776 1.5534 -0.124 4.39°
400 1.6963 1.5667 -0.130 4.54°
355 1.7087 1.5753 -0.133 4.64°
266 1.7617 1.6114 -0.150 5.08°

 

 

 



Specifications:
 

Surface Quality:

20/10 Scratch and Dig
Optical Axis Orientation: +/-0.5°

Parallelism:

< 15 arc sec

Flatness:

λ/4 @ 632.8 nm

Transmission Wavefront Distortion:

<λ/4 @ 632.8 nm