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60 mm Cage System Beam Block![]() LB2 Application Idea LB2 in 60 mm Cage System Used to
![]() Please Wait ![]() Click to Enlarge LB2 Beam Block with Faceplate Removed Features
Thorlabs' LB2(/M) IR Beam Block absorbs CW and pulsed laser beams over the 1 - 12 µm wavelength range and features 4-40 taps for integration into our 60 mm cage system. This beam block is recommended for a maximum average power of 80 W (CW) or a maximum energy density of 25 J/cm2 (pulsed). It features a large 1.97" x 1.97" (50.0 mm x 50.0 mm) entrance aperture which can be widened to 2.72" x 1.97" (69.0 mm x 50.0 mm) by removing the front faceplate using a 1.5 mm hex key. When installed, the faceplate serves to protect the graphite pad. Note that the 4-40 taps for cage mounting are located on the faceplate. The LB2(/M) also offers three 8-32 (M4) taps on one side for mounting to Ø1/2" posts or Ø1" posts. We also offer laser beam traps that are compatible with our 30 mm cage system. Please note that the LB2(/M) contains graphite and may not be suitable for all lab environments. The LB2(/M) will become hot to the touch with beam powers above 10 W.
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