532nm notch filter
532nm notch filter

532nm Notch Filter FWHM 18nm

532nm notch filter band stop 18nm is a bandstop filter which deliver high transmission band at 400-520nm, 545-1600nm and block the wavelength at 532nm. Coligh manufactureshigh precision notch filters for laser and multi-spectral imaging system.

  • High transmission >90% for transmission range
  • OD>6 rejection for 532nm laser wavelength
  • Wide pass band 400-520nm&545-1600nm
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532nm Notch Filter Description

532nm notch filter is also known as 532nm band stop notch filter. It adopts multi-layer thin film interference design, which can achieve ultra-high blocking efficiency of 532nm OD>6, eliminate the interference of laser oscillation and ambient light, and the high transmission of dual-band 400-520nm & 545-1600nm can solve the optical path stray light in the fields of laser processing, biological imaging, industrial detection, etc. And through the design of 0° incident angle and 3° cone half angle at the same time, the stability of the optical path is guaranteed to meet the needs of precision optical systems.

532nm band stop notch filter Specification

Optical Filter type: Notch filter Transmission Range 400-520nm, 545-1600nm
Center Wavelength 532nm Transmission >90%
Optical Density OD>6 Angle Of Incidence 0 deg
FWHM 18nm Cone Half-angle 3 deg
Surface quality:  80/50 60/40 Coating Hard Coating

532nm Notch Filter Applications

532/18nm notch filter is suitable for the following fields in high-precision optical systems:

  • In laser systems, 532/18nm notch filter can filter out non-harmonic noise in fiber lasers and solid lasers
  •  In biological imaging, it can filter the scattered light of 532nm laser and improve the signal-to-noise ratio of the target fluorescence signal
  • In industrial detection, it can enhance machine vision by suppressing ambient light interference (such as 532nm reflected light)

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