60 mm Cage System Beam Block

LB2
Application Idea
LB2 in 60 mm Cage System Used to
Block IR Beam Transmitted
Through Dichroic Beamsplitter
- Absorbs up to 80 W (CW) or 25 J/cm2 (Pulsed)
- Effective Over 1 - 12 μm Wavelength Range
- Essential Component for Laser Lab Safety

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LB2 Beam Block with Faceplate Removed
Features
- Laser Safety Devices Reduce Risk of Laser Damage
- IR Beam Block Effective Over 1 - 12 µm Wavelength Range
- Absorbs up to 80 W (CW) or 25 J/cm2 (Pulsed)
- 60 mm Cage System Compatible
- Post-Mountable
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.
Item # | Wavelength Range |
Absorptive Material |
Laser Type | Max Average Power |
Max Average Power Density |
Max Energy Density |
Entrance Aperture |
---|---|---|---|---|---|---|---|
LB2(/M) | 1 - 12 µm | Graphite | CW and Pulsed | 80 W a | 25 kW/cm2 b | 25 J/cm2 c | 1.97" x 1.97" (50.0 mm x 50.0 mm) |
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