Collection: 850nm Bandpass Filter
a• 850nm bandpass filters with various FWHM options (1.2nm to 115nm)
• Center wavelength of 850nm for all filters
• Prices range from $25 to $254, with most around $45
• Optical densities from OD2 to OD6 available
• Applications include LiDAR, PCB inspection, and Raman spectroscopy
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Source for 850nm
The primary source for 850nm laser light is a semiconductor diode laser. These diodes are specifically designed to emit light at this wavelength and are fabricated using materials like gallium arsenide (GaAs) or indium phosphide (InP).
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Comparing 850nm and 808nm Lasers
808nm: Generally has slightly deeper tissue penetration than 850nm due to its shorter wavelength. This makes it more suitable for applications requiring deeper tissue interaction.
850nm: While still capable of penetrating tissues, it may not be as effective as 808nm for very deep tissue applications.