FB630-10 In Stock

The FB630-10 by ThorLabs is a highly efficient bandpass filter that offers exceptional wavelength selectivity for the transmission of a well-defined band of light while rejecting unwanted radiation. The FB630-10 is designed to provide one of the easiest ways to achieve highly selective transmission of light in a specific wavelength range.

With a center wavelength of 630 nm and a bandpass region of 10, the FB630-10 features a similar design to a thin film Fabry-Perot Interferometer. It consists of two reflecting stacks that are separated by an even-order spacer level, and vacuum deposition techniques are used to construct the stacks from alternating layers of high and low refractive index materials. These layers can reflect up to 99.99% of light in the desired wavelength range, while also displaying high transmission in the bandpass region. The FB630-10 also features an additional blocking component that eliminates any out-of-band radiation. This component, however, reduces the filter's overall transmission throughput.

To ensure optimal performance, the FB630-10's aluminum ring housing is labeled with an arrow that points in the design transmission direction, making it easier to handle and enhancing the blocking OD by limiting scattering. The FB630-10 can be mounted into a wide selection of filter mounts and wheels, and its black anodized aluminum ring is unthreaded and has an Ø1" outer diameter of and a 6.3 mm maximum edge thickness. The filter's mounts are not threaded, so retaining rings are required to mount the filters into a variety of compatible internally-threaded lens tubes or filter mounts. It is crucial to note that the filter should not be taken out of its mount as it has several fragile layers of glass that are bound with epoxy and the mounting ring. The outer glass layers ensure the dielectric coating is safe from the environment, for if it were exposed, it would diminish the filter's efficiency to transmit over time.