Johns Hopkins Lens

High Reflectance Coatings for YAG Applications.

Also referred to as laser mirrors, are used when a very high amount of light is needed to be reflected, typically between 99.0% to 99.995%, with scatter as low as 50 ppm. These mirrors provide a very high reflection over a narrow wavelength region.

Damage Threshold:> 10 j/cm2 @ 532nm + 1064 nm
> 2 j/cm2 @ 266nm + 355nm
pulse 20ns, rep rate 20hz

HR-266
HR-355
HR-532
HR-1064

Dual Band High Reflectors

For high reflectance at both laser wavelengths of 532nm and 1064nms or 355nm and 532nms.

Damage Threshold:> 10 j/cm2 @ 532nm + 1064 nm
> 2 j/cm2 @ 266nm + 355nm
pulse 20ns, rep rate 20hz

DBHR-266-532
DBHR-532-1064

Short Wave Pass Filters

HR @ 1570nm / HT @ 1064nm
For high reflectance at 1570nms and high coupling transmission at 1064nms.
R > 99.5% @ 1570nm
T > 99% @ 1064nm

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Long Wave Pass Filters

HR @ 1064nm / HT @ 1570nm
For high reflectance at 1064nms and high coupling transmission at 1570nms.
R > 99.5% @ 1064nm
T > 99% @ 1570nm

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Nonpolarizing Beamsplitters

Specifically designed to hold both the s- and p-polarization to the same ratio of reflection-to-transmission over a specific laser wavelength region, regardless of the incoming polarization.

Telecommunications

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Industrial

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10.6UM CO2 LASER COMPONENTS

Standard Silicon Plano Total Reflectors
Diameter .50 .75 1.0 1.5 1.75 2.0 3.0 4.0
Thickness .80 .120 .160 .200 .350 .500

Coating / Performance at 45 Degrees AOI:
PAG = Protected Silver @ 98.5% R
HEAG = Special Enhanced @ 99.8% R
EAG = Enhanced Silver @ 99.5% R
HR = Maximum Reflectivity @ 99.9

PAG-10600
HEAG-10600
EAG-10600
HR-10600

Standard Specifications / Tolerances
SQ >/= 20-10; Wedge < 3 Arcmin Diameter = +0 / - 0.005” ; Thickness = +/- 0.010”
Surface figure = 1/20 @ 10.6UM ; Edge bevels = 0.020” @ 45degrees
Dimensions are in inches


10.6UM CO2 LASER COMPONENTS

Standard Plano Windows
Substrate ZnSe, ZnS, CaF2, Ge
Diameter .50 .75 1.0 1.5 2.0 3.0 4.0 5.0 6.0
Thickness .80 .120 .200 .250 .375 .500
Coatings AR/AR @ 10.6UM for peak transmittance. AOI = Normal

V-10600-cleartran
V-10600-CaF2
V-10600-Ge
V-10600-ZnSe

Standard Specifications / Tolerances
SQ >/= 20-10; Wedge < 3 Arcmin Diameter = +0 / - 0.005” ; Thickness = +/- 0.010”
Surface figure = 1/20 @ 10.6UM ; Edge bevels = 0.020” @ 45degrees
Dimensions are in inches