Efficient beam splitting as well as output coupling in high power laser cavities
Coatings are provided by Ion Beam Sputtering (IBS) or Electron beam evaporation with/without Ion assistance coating techniques
Partial reflecting coatings provide required percentage reflection/
transmission at a specific angle of incidence both for both single
and broad band wavelenghts. These coatings serves usually for
the efficient beam splitting as well as output coupling in high
power laser cavities.
Partial Reflecting Coatings
Wavelength, nm
Reflectivity (average), %
Coating Code
266
10±3
PR1.10
50±2
PR1.50
90±1
PR1.90
355
10±3
PR2.10
50±2
PR2.50
90±1
PR2.90
400
10±3
PR3.10
50±2
PR3.50
90±1
PR3.90
515 - 532
10±3
PR4.10
50±2
PR4.50
90±1
PR4.90
633
10±3
PR5.10
50±2
PR5.50
90±1
PR5.90
750 - 850
10±3
PR6.10
50±2
PR6.50
90±1
PR6.90
946
10±3
PR7.10
50±2
PR7.50
90±1
PR7.90
1020 - 1100
10±3
PR8.10
50±2
PR8.50
90±1
PR8.90
1122
10±3
PR9.10
50±2
PR9.50
90±1
PR9.90
1319
10±3
PR10.10
50±2
PR10.50
90±1
PR10.90
1550
10±3
PR11.10
50±2
PR11.50
90±1
PR11.90
Standard Specifications
Coating Adhesion and Durability
Per MIL-C-675A
Clear Aperture
>90% of diameter
Laser Damage Threshold
>5-6 J/cm2 for 10 ns pulses @ 1064 nm
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