B-NF

The B-NF series is an optically binned switchable notch filter made from Kent Optronics' fast speed liquid crystal materials. Each B-NF filter consists of ≥2 filter bins to cover a broad spectral region (e.g., > 100 nm from the visible to infrared) for light blocking or routing. Each individual filter bin has a customized notch bandwidth. The filter can be rapidly switched between the transparent and reflection states.

The product series offers customers with an E-O component for purpose as an agile laser beam director, laser blocker, beam splitter, etc..., in the envisioned photonics systems, such as laser protection devices, remote sensing, vision-aid devices, and broadband light routing.

As compared to the state-of-the-art tunable notch filters containing passive polarizers, the B-NF series offers the following un-matchable performance specifications:

• 2X lower insertion loss in transparent state
• high optical density (OD) at the notch wavelength
• >80% out band transmittance
• ≤20 ms switching speed

The product comes with a compact power supply that can be either battery or 110/220 V wall-plug powered. Customers have the options to choose the filter substrate material, shape, aperture and the operation mode (i.e., manual or computer controlled). All products are offered at a competitive price. Contact us for a price quote with your specific application requirements.

The following is an exemplary 3-binned B-NF filter in the near IR.