Bandpass Filter

BRD Optical was founded in 2004, and is located in the city of Changchun-the optic base of China with a beautiful view and profound optical culture. We have state-of-the-art, modern technology machines for manufacturing and inspecting all kinds of precision optics. Our company occupies an area of 2,000 square meters, supported by 120 workers.

Bandpass filter is a device that passes frequencies within a certain range and rejects (attenuates) frequencies outside that range.

As the best optical bandpass filter manufacturer, we can provide ideal bandpass filter and optical bandpass filter.

Description Of Bandpass Filter
Bandpass filters are widely used in wireless transmitters and receivers. The main function of such an ideal band pass filter glass in a transmitter is to limit the bandwidth of the output signal to the band allocated for the transmission. This prevents the transmitter from interfering with other stations. In a receiver, bandpass filter types allow signals within a selected range of frequencies to be heard or decoded, while preventing signals at unwanted frequencies from getting through. A bandpass filter also optimizes the signal-to-noise ratio and sensitivity of a receiver.

In both transmitting and receiving applications, well waveguide bandpass filter design, having the optimum bandwidth for the mode and speed of communication being used, maximize the number of signal transmitters that can exist in a system, while minimizing the interference or competition among signals.

Specifications Of Bandpass Filter
Type No. Centre   Wavelength
   (nm) Bandwidth
   (nm) Tpeak
   (%) Blocking   Range
   (nm) Blocking Depth
BPF-220/10 220 10 >13 200-2000 OD3
BPF-254/10 254 10 >20 200-2000 OD3
BPF-260/10 260 10 >20 200-2000 OD3
BPF-266/10 266 10 >20 200-2000 OD3
BPF-280/12 280 12 >20 200-2000 OD3
BPF-302/12 302 12 >20 200-2000 OD3
BPF-330/12 330 12 >20 200-2000 OD3
BPF-340/10 340 10 >50 200-1200 OD5
BPF-350/8 350 8 >35 200-1200 OD2
BPF-352/10 352 10 >45 200-1100 OD5
BPF-355/8 355 8 >40 200-1200 OD4
BPF-355/10 355 10 >50 200-1100 OD4
BPF-355/85 355 85 >90 200-1000 OD3
BPF-358/13 358 13 >55 200-1100 OD4
BPF-360/10 360 10 >50 200-1100 OD4
BPF-360/12 360 12 >50 200-1200 OD4
BPF-365/10 365 10 >50 200-1100 OD4
BPF-365/40 365 40 >60 200-1100 OD4
BPF-365/80 365 80 >85 200-800 OD3
BPF-370/10 370 10 >55 200-1100 OD3
BPF-375/10 375 10 >55 200-1100 OD3
BPF-379/12 379 12 >50 200-1100 OD3
BPF-387/10 387 10 >60 200-1100 OD3
BPF-395/10 395 10 >50 200-1100 OD3
BPF-400/10 400 10 >55 200-1200 OD4
BPF-400/30 400 30 >75 200-1100 OD4
BPF-405/10 405 10 >55 200-1100 OD3
BPF-405/20 405 20 >65 200-1200 OD4
BPF-410/8 410 8 >50 200-1100 OD4
BPF-410/20 410 20 >65 200-1200 OD4
BPF-410/25 410 25 >90 200-1100 OD3
BPF-410/30 410 30 >85 200-1100 OD5
BPF-412/10 412 10 >56 200-1200 OD4
BPF-415/10 415 10 >60 200-1200 OD4
BPF-415/20 415 20 >60 200-1200 OD4
BPF-415/55 415 55 >85 200-800 OD4
BPF-418/10 418 10 >60 200-1200 OD4
BPF-420/10 420 10 >50 200-1100 OD4
BPF-420/22 420 22 >85 200-1100 OD3
BPF-425/10 425 10 >65 200-1200 OD4
BPF-427/10 427 10 >70 200-1200 OD5
BPF-435/10 435 10 >55 200-1100 OD5
BPF-440/10 440 10 >50 200-1200 OD4
BPF-445/10 445 10 >70 200-1200 OD4
BPF-447/10 447 10 >50 200-1200 OD4
BPF-450/10 450 10 >55 200-1200 OD4
BPF-450/50 450 50 >60 200-1200 OD4
BPF-450/30 450 30 >90 200-1100 OD3
BPF-450/50 450 50 >90 400-800 OD3
BPF-450/100 450 10 >75 200-1200 OD3
BPF-455/10 455 10 >60 200-1200 OD4
BPF-456/10 456 10 >75 200-1200 OD4
BPF-460/20 460 20 >85 200-1200 OD3