850nm Optical Bandpass Filter with 30nm FWHM

This high-performance optical bandpass filter is designed to transmit light centered at 850nm, with a Full Width at Half Maximum (FWHM) of 30nm. It provides precise wavelength isolation with effective spectral transmission.

Specifications:

• Central Wavelength: 850nm
• Full Width at Half Maximum (FWHM): 30nm
• Transmission Range: Passes light between approximately 835nm and 865nm, with peak transmission at 850nm.
• Blocking Range: Minimizes transmission outside the 850nm ±15nm range, effectively reducing unwanted light interference.

Coligh’s stock standard 850nm thin film optical filters feature:

• Feature: NIR bandpass filter
• Center wavenelgt： 850±5nm
• FWHM: 30±5nm
• Blocking range: 200-1100nm
• Blocking depth: OD3
• Transmission Peak: Above 85%@850nm
• Thickness：0.5mm, 0.55mm, 0.7mm, 1.0mm, 1.1mm
• Size: Any size below 100*100mm

Custom option:

• Bandwidth: 10nm, 25nm, 30nm, 50nm,70nm, 100nm, 150nm any bandwith client request
• Blocking depth:  OD4, OD5, OD6 is availiable
• Size: round or square smaller than 100*100mm
• Material thickness: Depend on request
• Transmission and blocking rang: custom as per requirement or between 200nm to 1500nm

Features:

• Precise Transmission: Allows a narrow spectrum around 850nm to pass, ensuring exact wavelength isolation.
• High Efficiency: Optimizes transmission at 850nm for accurate optical measurements and high signal clarity.
• Advanced Coatings: Utilizes specialized coatings for durability, spectral purity, and minimal optical distortion.

Applications:

• Telecommunications: Perfect for fiber optic communication systems operating at 850nm, enhancing data transmission efficiency and signal integrity.
• Imaging: Improves imaging systems by filtering out unwanted wavelengths, enhancing image resolution and contrast.
• Spectroscopy: Useful for spectroscopy applications requiring precise wavelength isolation around 850nm, aiding in material analysis.
• Biomedical Research: Supports fluorescence microscopy and other applications where accurate wavelength transmission around 850nm is crucial for clear signal detection