BEZHP-1/3-532 Expander
Part Number: 61-6949-39

[Features]
· A variable zoom type (1 to 3x zoom) laser beam expander for high power applications.
· Collimation can be finely adjusted with the diopter correction function.
· With a lens design that takes into account wave-front aberration, it can be used in high-accuracy optical systems such as interferometers and laser machining.
· The optical system of the beam expander has an air gap structure that does not bond lenses. This makes it possible to also use high-output lasers.
· By using the Galilean type lens configuration, the number of aberration correction lenses has been reduced and the total length of the expander has been shortened.
· By turning the diopter ring located at the center of the beam expander, switching between the collimated beam and divergent beam from the focused beam is possible.
· Used when strict collimating adjustment is required, or the position of the beam waist is varied.
· Laser beam expander holders (BE-M22H, BE-M34H) with finely adjustable gates for fixing beam expanders are available.
· * Beam expanders cannot be used in the reverse direction to function as beam diameter condensers.
· * Calculate the divergence angle of the laser beam and the position of the beam waist, and use an appropriate optical system accordingly.
[Product Specifications]
· Variable Magnification: x1 to x3
· Design Wavelength: 532 nm
· Incidence Effective Diameter: φ5 mm
· Laser Yield Strength*: 5.0 J/cm2 * Laser Pulse Width 10 ns, Repetition Frequency 20 Hz
· Coating: Multilayer Anti-reflective Film
· Material: Synthetic Quartz
· Mass: 0.3 kg