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Product Announcement

IR Laser Optics – Grating End Reflectors for Dye Lasers

07 Feb 2011

LASER COMPONENTS offer a range of Grazing Incidence gratings from Optometrics which perform an important function in the operation of dye laser systems.

Grazing incidence is a simple and inexpensive optical configuration that can tune and increase the resolution of a dye laser.

A holographic grating, functioning as an end reflector in a dye laser cavity, is positioned so that laser radiation strikes the grating almost perpendicular to the grating normal. As the angle of incidence approaches 89 degrees, a relatively large area of the grating is illuminated by the laser beam, increasing angular dispersion and resolving power significantly. The sizes of the grazing and mirror (12.7 x 50.8mm) are optimised for grazing incidence. The grating is fixed and tuning is achieved by rotation of the mirror. The laser beam is diffracted twice in grating incidence, resulting in a two fold increase in resolution. Low grating efficiency is characteristic of the grazing incidence configuration but is compensated for by the high gain of the dyes used.

For more information visit our website atDiffraction Grating

CONTACT DETAILS
Laser Components (UK) Ltd
Goldlay House
114 Parkway
Chelmsford
Essex
CM2 7PR
United Kingdom
Tel: +44 1245 491 499
Fax: +44 1245 491 801
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