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All-in-one Bi1550-77 Narrow Bandwidth Interference Swir Bandpass Filter M77x0.75 Your 65% Coupon Inside [DmJgPeko]

$74.99 $239.99 -69%

MidOpt Bi1550-77 Narrow Bandwidth Interference SWIR Bandpass FilterBecause of its very low attenuation rate, 1550nm is the most common wavelength used for telecommunication, particularly for extremely long-distance, high-bandwidth fiber optic applica

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All-in-one Bi1550-77 Narrow Bandwidth Interference Swir Bandpass Filter M77x0.75 Your 65% Coupon Inside [DmJgPeko]

MidOpt Bi1550-77 Narrow Bandwidth Interference SWIR Bandpass Filter

Because of its very low attenuation rate, 1550nm is the most common wavelength used for telecommunication, particularly for extremely long-distance, high-bandwidth fiber optic applications. 1550nm light is also generally considered “eye-safe” (and safe for CMOS camera sensors). Similarly, some companies favor 1550nm light for automotive LiDAR applications. 1550nm fiber lasers used in these applications are pumped by diode lasers that emit in the 900nmm band, which potentially could cause damage to both the human eye and CMOS cameras.

Blocking light outside the desired 1550nm range using a Bi1550 filter can, therefore, be crucial while also helping improve power efficiency and significantly reduce noise. Hardcoated 1mm thick, single-substrate Bi1550 filters offer several size, performance, and durability advantages over traditional multi-cavity or laminated filters.

MidOpt Bi1550-77 Technical Specifications:

Product Line / Series Bi - Narrow Bandwidth Interference
Filter Model Bi1550
Filter Type Narrow Bandwidth Interference SWIR Bandpass
StablEDGE No
Useful Range 1540nm - 1560nm
Tolerance +/- 10nm
Peak Transmission ≥90%
Surface Quality 40/20
Filter Size 77mm
Filter Thread M77x0.75
Outer Diameter 85mm
Clear Aperture 76.8mm
Overall Thickness 6.5mm
Exposed Thickness 4.5mm
FWHM 35nm
Compatible LED 1540nm, 1550nm, 1560nm
Average Transmission Not Specified
Brand Midwest Optical Systems

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January 28, 2026

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January 28, 2026

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