Skip to content 
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
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)
