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Crystals, Isolators, and Speckle Reducers

Crystals are found in laser systems as laser medium crystals or frequency conversion crystals (nonlinear crystals). Laser medium crystals, also known as gain mediums, are located inside laser cavities, and determine laser parameters such as wavelength and beam coherence. Nonlinear Crystals are used for nonlinear frequency conversion of intense light to achieve wavelength combinations of the frequencies of the input light. Optical Isolators and Speckle Reducers are used to improve performance of laser systems. Optical Isolators provide one-way transmission of laser light while blocking reflections, protecting laser systems from feedback-induced damage, and increasing laser system power stability. Speckle Reducers are used to reduce laser speckle for applications such as beam homogenization or 3D scanning.

Edmund Optics offers lithium triborate (LBO) and β-barium borate (BBO) Nonlinear Crystals for the harmonic generation of lasers commonly used, including Nd:YAG, Yb:YAG, Yb:doped and Ti:Sapphire. Free-Space Optical Isolators with typical transmission greater than 90% are available with a range of design wavelengths up to 1070nm. For laser speckle reduction, Optotune Laser Speckle Reducers feature a unique design that incorporates electro-active polymers (EAPs) to provide a uniform distribution of transmitted laser light.

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Free-Space Optical Isolators
  • Up to 67 dB Isolation for Ultimate Stability
  • Up to 92% Transmission for Maximum Power
  • 4.7mm Aperture Provides Excellent Beam Quality
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Nonlinear Crystals
  • BBO Crystals for Frequency Conversion of 800nm and 1030nm Lasers
  • LBO Crystals for Frequency Conversion of 1030nm and 1064nm Lasers
  • High Damage Thresholds Up to 10 J/cm2 @ 1064nm, 10ns, 10Hz
  • Broad Transparency Range from the UV to the IR

Optotune Laser Speckle Reducers
  • Ideal for Eliminating Laser Speckle Noise
  • Plug and Play with Integrated Drive Electronics
  • 6 - 24 Degree Diffusing Angles Available

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