61-6947-92 Variable Beamsplitter 266nm VBS-50S03-1-266
Analyzer, Testing Equipment

61-6947-92 Variable Beamsplitter 266nm VBS-50S03-1-266

model: 61-6947-92
brand: SIGMAKOKI CO., LTD.

Product Description

Product Model: 61-6947-92Product Brand: SIGMAKOKI CO., […]

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Product Details

Product Model: 61-6947-92
Product Brand: SIGMAKOKI CO., LTD.

Features

  • A beam splitter that changes the light divergence ratio between transmittance and reflectivity by changing the incident angle.
  • It can be ***d when external light quantity adjustment is required for a laser without variable light quantity adjustment or a stabilized laser, when light quantity is temporarily reduced by optical system adjustment, or when the laser beam is divided into any two light quantities at the transmission/reflection branch.
  • Since dielectric multilayer film is ***d for the coat, it has excellent light resistance and durability.
  • The beam shift ca***d by the beamsplitter tilt can be eliminated using a compensation plate.
  • Can be ***d for any polarization. However, the transmittance characteristics dep*** on the polarization state.
  • A variable attenuator (SVAB) for lasers is also available, which is unitized using this variable beam splitter.
  • * When using for high power laser, make sure to terminate the reflected light.
  • * Reflectivity characteristics may change when the device becomes hot.
  • * When the incident angle is changed to adjust the transmittance, the amount of translation of the transmitted light beam also changes.
  • * Use a compensation plate (WSQNA/WBNA) to restore this translation.
  • * If a laser beam of φ30 mm or more is injected and the beam splitter is tilted significantly, the output beam may be missing.
  • * When ***d with P-polarized light, an incidence angle greater than 45 degrees is required.

Spec

  • [

    common specification]
  • Material: BK7 synthetic quartz
  • Substrate surface accuracy: λ
  • Parallelism: <5″
  • Coating: Surface: Dielectric multi-layered film, Back: Reflective prevention film
  • Scratch - dig: 10-5
  • Effective range: Circle inscribed in a rectangular of 90% of the dimensions
  • Effective incident beam diameter: Ellipse 30 x 43mm (when tilt angle is 45 degrees of the element)
  • [Individual specification]
  • Adaptive wavelength: 266nm
  • Transmittance S polarized light (θ = 0°): >90%
  • Transmittance S polarized light (θ = 45°): <5%
  • Material: Synthetic quartz
  • Laser durability *: 1J/cm2
  • *Laser pulse width 10ns, Repeat frequency 20Hz
  • RoHS conform product

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