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Visible laser diode filters are made with advanced processes to enhance their physical longevity, as opposed to standard "off-the-shelf" filters. SpectroFilm laser diode filters have an anticipated working life of five years.
Angle of Incidence and Blue Shifting
The center wavelength of the filter will shift toward shorter (blue) wavelengths as the angle of incidence increases. The greater the angle, the greater the shift. This is known as "blue shifting".
Laser Diode Tolerances
Diodes typically have a wavelength tolerance of +/-10nm. Corresponding to to surrounding temperature decreases and increases, this wavelength (measured at room temperature) will decrease and increase at a rate of 0.25nm/ºC.
Laser Wavelength (nm): Actual CWL@0º AOI (to compensate for blue shift)
Laser Diode Filter Specifications
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