Dielectric HR Mirror Introduction

 Mirrors are widely used in laser System (266/355/532/808/1064/2940,etc), Image System, Laser Measurement System, Optical Measurement System and Sensors.

 
LaserStates provides various types of mirrors, ranging from laser line mirrors, harmonic separator mirrors, high reflection (HR) mirrors, partial reflection (PR) mirrors and metallic coated mirrors.
 
Choosing the proper reflective coating option ensures high reflectivity of the needed wavelength or wavelength range. Optical Mirrors designed for laser applications are optimized for the given laser wavelength.
 
Capability
Common Specification
Material
N-BK7, Fused Silica, Borofloat, LAS material
Substrate
Flat Window, Spherical Lens, Cylindrical Lens, Rod Lens, Prism
is available
Dimension tolerance
± 0.10 mm
Diameter tolerance
+0/-0.1mm
Thickness tolerance
± 0.10 mm
Clear Aperture
>85%
Parallelism
<1 arc minute
Flatness
Lambda/10 per 1 inch (Substrate)
Surface quality
S/D 10-5 or S/D 20-10 (Substrate)
Bevel
0.2mmx45°
Coating
High Reflection coating ,
R>99.5% for random polarization
Or according to the requirement
LaserStates' advantage
Big Angle of Incident (For example, 0-45deg AOI)
Broadband (For example, 400-750nm/750-1100nm/1280-1600nm)
High LDT
 
Type I  high reflection (HR) mirrors
 
 
Type II partial reflection (PR) mirrors
 
 
 
Type III Angle turned HR Mirrors
 
 
My methods to improve the LDT
1) Keep the substrates Fresh - After the polishing and cleaning, we should perform the coating immediately, otherwise, the oxide layer on the substrate will effect the LDT. We also can use the hand-polishing machine to remove the oxide layer carefully.
 
2) Improve the surface quality as high as possible.
 
3) Improve the degree of vacuum of the coating machine as high as possible.
 
Contact sales@laserstates.com for more information.