Holoptic is currently developing a spectrally pure eye-safe laser that can be used to reduce the amount of pollution generated during the processing of fossil fuels.

Spectrally Pure Eye-Safe Laser (SPESL)

Holoptic is developing SPESL, a method of detecting pollution caused by processing of fossil fuels, composed of an Er:YAG laser, side pumped by semiconductor lasers in the Er3+ absorption band near 1475 nm, with an intra-cavity etalon for both line-width narrowing and tuning within a wavelength band, and with a switchable spectral filter to select the wavelength band itself.