OFR High Power Nd:YAG MicroSpot Focusing
Objectives are designed to transmit and focus the high power
radiation emitted by industrial Nd:YAG lasers.
Use Outside the Design Spectrum
The High Power Nd:YAG Objectives are designed
for diffraction-limited performance at 1064 nm. Transmittance
of the system ranges from 250 nm to 1.6 µm. Near-diffraction
limited performance can be achieved outside the design spectrum,
including the visible spectrum. Inquire.
Contact OFR for information concerning
direct and remote monitoring and individual model performance
at other wavelengths.
Materials
Energy
Throughput
Coating
Damage
Threshold
Fused Silica
> 96 - 98% within design spectrum
High power damage-resistant multilayer antireflection coating
optimized for 532 nm or 1064 nm. Other coatings available upon
request.
500 MW/cm2
NOTE: Power rating based upon 20 n-s pulses, 20 Hz, 532nm
or 1064 nm.
High
Power Nd: YAG Laser MicroSpot Focusing Objectives
Catalog
Number
WD
EFL
NA
Focal
Spot
Aperture
D
L
LMH-5X-532 or 1064
35 mm
40 mm
0.13
12 µm*
10 mm
21 mm
28 mm
LMH-10X-532 or 1064
15 mm
20 mm
0.25
6 µm*
10 mm
21 mm
28 mm
LMH-20X-532 or 1064
6 mm
10 mm
0.40
4 µm*
8 mm
21 mm
38 mm
* Note that theoretical focal spot values
are based on a Gaussian profile input beam at design wavelength
which fills the entrance aperture at the 1/e2 limits.
