Optical Beam Sampler, Broadband, N-BK7, 50.8 mm, λ/10, 660-1000 nm

  • Wavelength Range
    660-1000 nm
  • Diameter
    50.8 mm
  • Material
    Grade A N-BK7
  • Antireflection Coating
    NC.2
  • Angle of Incidence
    45°
  • Damage Threshold
    500 W/cm2 CW, 7 J/cm2 for 10 nsec pulses, typical @ 780 nm
  • Surface Flatness
    ≤λ/10 at 632.8 nm over the clear aperture
  • Surface Quality
    15-5 scratch-dig
  • Diameter Tolerance
    +0/-0.13 mm
  • Thickness
    9.4 mm
  • Thickness Tolerance
    ±0.38 mm
  • Wedge
    30 ±15 arc min
  • Clear Aperture
    > central 80% of diameter
  • Chamfers
    0.38-1.14 mm face width
  • Chamfers Angle Tolerance
    45° ±15°
  • Durability
    MIL-C-675C, moderate abrasion million cycles
  • Cleaning
  • Substrate Number
    20B20