4Lasers provide BSO, Fe:LiNbO3, SBN, and BGO crystals not mainly, but necessarily for applications, which exploit photorefractive effect. The photorefractive effect is a phenomenon whereby the local index of refraction is modified by spatial variations of light...

Inelastic photon-phonon-interaction in Raman crystals gives rise to Stokes or anti-Stokes shift of pump radiation. It is the so-called Stimulated Raman scattering (SRS). This is a versatile method for frequency conversion, which does not need to be phase-matched,...

Nonlinear optical crystals are used in many different nonlinear parametric applications. To mention a few: second harmonic generation, difference-frequency generation, optical parametric amplification, and others. A proper crystal has to be chosen in order to use it...

Passive Q-switch crystals (saturable absorbers) are used as laser resonator quality modulators in passively Q-switched lasers instead of an electrically controlled modulator. Typically, these saturable absorbers are characterized by a low saturation fluence...

Laser crystals, glasses, and ceramics are used as optical gain sources in solid-state lasers. These media are typically doped with rare-earth ions (e.g. neodymium, ytterbium, or erbium) or transition metal ions (titanium or chromium). 4Lasers develops and supplies...

Whether you are setting up your laser experiment or integrating a commercial product, we have competitively high-performance crystals for your needs. Do not hesitate to request custom, if the crystal is not in the standard crystals section. Laser crystals Passive...