Boron-doped Lithium Niobate (B:LiNbO3) is a type of lithium niobate crystal that has been doped with boron ions (B3+). The doping of boron ions results in a change in the refractive index and other optical properties of the crystal, making it useful for various applications in the field of photonics, including frequency doubling, optical waveguiding, and electro-optic modulation.
One advantage of B:LiNbO3 over undoped lithium niobate is its higher damage threshold, making it suitable for use in high-power optical systems. The crystal is also thermally stable, making it a good choice for use in high-temperature environments. However, B:LiNbO3 is also more expensive than undoped lithium niobate, and its optical properties may not be as well understood.