ProductsOpticsOutput Couplers
IMTS Products
Output Couplers
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.
Contact us for more information II-VI_opticsCatalog2007.pdf
Specs
| Spcifications | 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" | 5.99 | 50% | 20MCC/15MCX |
| 346822*> | ZnSe | 1.181" | 27.94 | 0.236" | 5.99 | 50% | 30MCC/30MCX |
| 554288 | ZnSe | 1.5" | 30.0 | 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 |
| 697996 | ZnSe | 1.5" | 38.1 | 0.315" | 8.00 | 60% | 35MCC/15MCX |
| 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.
