Coating Tables for beam delivery specifications

 0ֲ° Phase Shift Mirror

Ophir’s High Reflection coating represents a superior solution for beam delivery and cavity optics used in high-power CO2 laser systems.  
The use of coatings like HR is a cost-effective way to maximize reflection, improve performance, protect highly-sensitive mirror surfaces and prolong product life for superior cutting.  

Ophir’s OEM-approved HR coating delivers higher reflection than standard coatings at CO2 laser 10.6μ wavelength :  

Types of High Reflection coatings

90 phase shift >99.0%  - Versus previous value of 98% . This coating is supplied now for Ophir's standard Phase retardation mirror    

Zero Phase Shift >99.7%   - Versus standard coating value of 99.5%  

Both coatings are suitable for both Cu and Si mirrors.

Both coating allows phase shift tolerance of ±2@45° and >80% reflection for 630-670nm(same or better than standard coatings)

 

Typical Mechanical Specifications - Beam Delivery Mirrors

Material Silicon (Si), Copper (Cu)
Surface Quality 10-5 scratch and dig
Thickness Tolerance ±0.25mm
Diameter Tolerance +0 / -0.12mm
Mechanical Wedge <3' (arc minutes)
Power 2 Fringes @ 0.633μm
Irregularity 1 Fringes @ 0.633μm
S1 / S2 Radius Plano / Plano

 

Coating Specifications for Cu and Si Beam Delivery Mirrors*

Type %R@10.6 %S-Pol@10.6 %P-Pol@10.6 %R@Visible Phase Shift Tolerance
ZPS-HR 99.70% 99.80% 99.60% 630-670nm≥80% 900-1000nm>55% 0º ±2º
ZPS 99.50% N/A N/A 630-670nm≥80% 0º ±2º
MMR-P 99.85% 99.90% 99.80% 630-670nm≥65% 0º ±2º
90PS 98% N/A N/A 630-670nm≥80% 90º ±2º
90PS-HR 99% N/A N/A N/A 90º ±2º
ATFR-HR N/A 99% <1% 630-670nm≥80% N/A

*Specifications are for AOI of 45º

CO2 Optics Catalog