Ultraviolet laser delivery using an uncoated hollow taper

We demonstrate a simple grazing-incidence-based method for ultraviolet (UV) laser delivery and direct laser-to-taper coupling using an uncoated glass hollow taper. The taper serves as a mode homogenizer that converts the strongly multimode distribution of the input laser emission into a high-quality...

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Bibliographic Details
Published in:IEEE journal of quantum electronics 2000-08, Vol.36 (8), p.944-948
Main Authors: Ilev, I.K., Waynant, R.W., Ediger, M.N., Bonaguidi, M.A.
Format: Article
Language:English
Subjects:
Applied sciences
Biological and medical applications
Biological and medical sciences
Biomedical optical imaging
Circuit properties
Electric, optical and optoelectronic circuits
Electronics
Emission
Exact sciences and technology
Fiber lasers
Focusing
Fundamental and applied biological sciences. Psychology
General aspects
Glass
Homogenizers
Instrumentation. Materials. Reagents. Research laboratory organization
Integrated optics. Optical fibers and wave guides
Joining
Laser modes
Lasers
Optical and optoelectronic circuits
Optical attenuators
Optical coupling
Optical materials
Optical waveguides
Optical waveguides and couplers
Quantum electronics
Stimulated emission
Ultraviolet
Waveguide lasers
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Summary:We demonstrate a simple grazing-incidence-based method for ultraviolet (UV) laser delivery and direct laser-to-taper coupling using an uncoated glass hollow taper. The taper serves as a mode homogenizer that converts the strongly multimode distribution of the input laser emission into a high-quality smooth profile at the taper output. An uncoated pyrex-glass hollow taper is used for direct launching, without any intermediate focusing elements, of UV laser emission from the third harmonic ( 355 nm) of a Q-switched Nd:YAG laser into the taper. The linear hollow taper provides a laser-to-taper coupling efficiency exceeding 70%.
ISSN:0018-9197
1558-1713
DOI:10.1109/3.853551