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  CO2 Laser Optics & Consumable Products / Resonator Optics / Output Couplers
Output Couplers (Partial Reflectors)
      RGQ and Order
Output Couplers (Partial Reflectors)Output Couplers (Partial Reflectors)

Partial reflectors are commonly used as laser output couplers or beam attenuators.

For your convenience, II-VI maintains commonly used coatings and substrate radii of curvature in inventory. For available special substrate sizes and coatings, please contact a II-VI sales representative for a quotation.

Laser output couplers often require a slightly wedged substrate to eliminate interference from multiple reflections inside the component. If you require a specific wedge value, please specify this when ordering.

   
Specifications

Standards
Dimensional Tolerances
Diameter
Thickness (plano)
Thickness (radiused)
+0.000”-0.005”
+0.005”-0.010”
+/-0.010”
Parallelism
Plano
Radiused, Diameter < 1”
Radiused, Diameter >= 1”
<= 3 arc minutes
<= 10 arc minutes
<= 5 arc minutes
Clear Aperture (polished)
90% of diameter
Surface Figure (power/irregularity) at 0.63µm
Plano
Radiused
1 fringe/0.5 fringe
(varies depending upon radius)
Surface-Dig

20-10
Side 1: Reflectivity Tolerance at 10.6µm

1% to 5%: ±0.5%xR
6% to 85%: +3%
86% to 95%: +1.5%
96% to98%: +1%
99%: +0.2%
99.5%: +0.2%
Side 2: AR Coating Reflectivity at 10.6µm

<= 0.20%
Part #
Description
Diameter
(inches)
Diameter
(mm)
Edge
Thickness
(inches)
Edge
Thickness
(mm)
Reflectivity
Radius**
Side 1/Side 2
988175
ZnSe
1.0”
25.4
0.236”
5.99
65%
30MCC/30MCX
774314
ZnSe
1.0”
25.4
0.236”
5.99
50%
PO/PO
132098
ZnSe
1.1”
27.94
0.220”
5.59
50%
20MCC/15MCX
346822*
ZnSe
1.181”
30.0
0.236”
5.99
50%
30MCC/30MCX
554288
ZnSe
1.5”
38.1
0.236”
5.99
30%
10MCC/10MCX
187879
ZnSe
1.5”
38.1
0.236”
5.99
UC
10MCC/15MCX
120765
ZnSe
1.5”
38.1
0.236”
5.99
30%
20MCC/PO
903007
ZnSe
2.0”
50.8
0.300”
7.62
48%
30MCC/20MCX
*MP-5 type coating
**M is meter, CC is concave, CX is convex, PO is plano
Contact a II-VI sales representative for exact specifications.

 

 

   
 
           
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