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Laser Output Couplers

Laser Output Couplers are designed for use as resonator mirrors for low, medium and high power lasers. They divide an incident, monochromatic beam into reflected and transmitted components with the specified intensity ratio. Substrates are available with plano/plano, plano/concave and plano/convex surfaces. They are coated on one side with an all dielectric, partial reflection coating, and on the reverse side with a high efficiency, narrowband, anti-reflection coating.

RMI Standard Specifications
Angle incidence:
Materials: BK7, UVFS, CaF2, ZnSe, Ge
Surface Figure:
BK7, UVFS:
CaF2:
ZnSe, Ge:
Plano [Concave/Convex]
λ/20 [λ/10] at 633 nm
λ/20 [λ/10] at 633 nm
λ/40 [λ/20] at 10.6 µm
Surface Quality:
BK7, UVFS:
CaF2:
ZnSe, Ge:
Both Surfaces
10-5
20-10
40-20
Diameter Tolerance: + 0.000", – 0.010"
Thickness Tolerance: ± 0.010"
Radius Tolerance: ± 0.5%
Wedge: ≤ 3 arc minutes
Bevels: 0.010" – 0.030" at 45º
Clear Aperture: Central 85% of diameter
Reflectance: R < 90% ± 3%
R = 90% – 95% ± 2%
R = 96% – 98% ± 1%
R > 98% ± 0.5%
Anti-Reflection Coating: R ≤ 0.25%
[Note: Thicknesses listed are exact for plano/plano substrates. For plano/concave and plano/convex substrates, center thickness (CT) depends on the radius of curvature.]
Plano/Plano Laser Output Couplers

Plano/Concave Laser Output Couplers


Plano/Convex Laser Output Couplers
Applicable Coatings Quick Links
DIELECTRICS
UV / Excimer Coatings


Narrowband Anti-Reflection (NAR)
Partial Reflection (PAR)
VIS / NIR Coatings:
Single Layer Anti-Reflection (SAR)
Narrowband Anti-Reflection (NAR)
Partial Reflection (PAR)
Infrared Coatings:
Narrowband Anti-Reflection (NAR)
Partial Reflection (PAR)
 
Call 303-664-5000 to discuss your optical requirements
Toll Free: 1-866-678-4270 Fax: 303-664-5001 Email: Sales@RMIco.com
Rocky Mountain Instrument Co. • 106 Laser Dr., Lafayette, CO • 80026 • USA

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Due to their potential strategic high value, export of RMI products and related technical data may be subject to U.S. or other export licensing requirements.
Please consult your export control administrator or contact RMI for more information.

RMI Settles Export Case
 
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