UFBS9010 1in Dia. 90:10 (R:T) Infrasil Low-GDD Ultrafast Beamsplitter, 600-1500nm, 45° AOI

The UFBS9010 is a 1-inch diameter beamsplitter developed by Thorlabs, designed specifically for ultrafast laser applications. This beamsplitter boasts a high reflection of 90% and a transmission of 10% at a 45-degree angle of incidence (AOI), making it ideal for a wide range of wavelengths between 600 and 1500 nanometers.

The beamsplitter is made from Infrasil, a high-quality fused silica material (fused sil mal-1965) known for its low coefficient of thermal expansion and excellent transmission properties in the near-infrared region. The Infrasil material, combined with the thin lens shape, ensures low group delay dispersion (GDD), which is crucial for ultrafast laser systems.

The front surface of the beamsplitter features a specialized coating, denoted as "tho ufbs9010", designed to optimize performance for the specified wavelength range. This beamsplitter is available for purchase directly from Thorlabs, with the current status indicating that it is in stock.

For those seeking a reliable, high-performance beamsplitter for their ultrafast laser applications, the UFBS9010 is a strong contender. Its wide wavelength range, high reflection and transmission rates, and low GDD make it a versatile and efficient choice for various optical systems.