Bandpass filter

The band-pass filter is a filter whose two sides of the transmission band of the spectral characteristic curve are adjacent to the cut-off band. It has been widely used in the fields of chemistry, spectroscopy, laser, astrophysics, optical fiber communication, biology and so on. Trusee can provide customized design, R&D and production services for bandpass filters.

– Substrate：quartz，BK7, K9,etc

– Dimension：customizable

– Transmitted wavefront：PV < λ/2(λ=632.8 nm)

– Surface quality：40/20(MIL-PRF-13830B)

– CWL： 400~1000 nm

– FWHM： 20~40 nm

– Cut-off：T ≤ 0.5%@400-1200nm