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Unstable Resonators

Unstable resonator optics are available to provide low divergence for applications requiring long distance propagation of the beam or the highest focussability. A significant improvement to spatial coherence is also obtained, which is beneficial in some applications involving the use of diffractive optics (e.g. FBG writing, DOE hole drilling).
The beam is flat topped in both axes, with no occlusions, for divergence of <300 microradians

GSI Lumonics has been a world leader in excimer lasers for over 20 years and LightMachinery is proud to be able to offer sales support, system integration and service for these lasers throughout North America.

Unstable Resonator Performance

	Beam profile at the focal plane of a one meter lens. Beam divergence is approximately 230 micro-radians FWHM in both axes.
	Interference pattern generated from a pair of slits seperated by 0.3mm demonstrating the spatial coherence of the unstable resonator configuration.
	Fringe Visibility (FV) FV = Peak Intensity - Base intensity         Peak Intensity + Base Intensity
	Fringe visibility versus beam displacement using a shearing interferometer.
	10 mm x 24 mm beam size at FWHM.
	Divergence less than 300 microradians.
	70% of stable resonator power in near field.

 

Contact us
For more information, free sample processing, or to answer any questions about these products, call us at (613) 592-6232, fill out our simple contact form below or email us at webinquiry@lightmachinery.com

Name
E-mail
Phone
Company
Laser Model	Laser Model PulseMaster 800 Series IPEX 800 Series INDEX 800 Series All Excimer Lasers
Application	Application Area Drilling - Ceramics, Nitrides and other hard materials Drilling - other Fiber Bragg Grating, index tuning Marking - Plastics Marking - Ceramics Marking - other Material Processing Non destructive testing Spectroscopy Wire stripping Other
Gas / Wavelength	Gas , Wavelength Argon Fluoride, ArF - 193nm Krypton Fluoride, KrF - 248nm Xenon Chloride, XeCl - 308nm Xenon Fluoride, XeF - 351nm All
How did you find us?	How did you find out about us? Existing customer Internet Search - Google Interent Search - other Internet Search - Yahoo Laser Focus World Advertisement Laser Focus World Article Laser Focus World Buyer's Guide Laser Focus World Press Release Newspaper article Photonics Spectra Article Photonics Spectra Directory - Buyers Guide Photonics Spectra Press Release Photonics Spectra Web Directory Referred by a colleague
Message tell us about your application

	Phone numbers:
Optics inquiries	(613) 749-4895 x 113
Laser inquiries	(613) 749-4895 x 211
Laser Technical Support, Spare Parts and Service	(613) 749-4895 x 115
FAX	(613) 749-8179
Email	enquiry@lightmachinery.com
Mailing Address: 272 Spring Street Almonte, Ontario Canada K0A 1A0	Shipping Address: 1200 Montreal Road Bldg M-50 Ottawa, Ontario Canada K1A 0R6 613-749-4895