NDLI: Fabrication of two-sided anamorphic microlenses and direct coupling of tapered high-power diode laser to single-mode fiber

Content Provider	IEEE Xplore Digital Library
Author	Liau, Z.L. Walpole, J.N. Livas, J.C. Kintzer, E.S. Mull, D.E. Missaggia, L.J. DiNatale, W.F.
Copyright Year	1989
Abstract	An anamorphic microlens has been developed to couple a tapered unstable-resonator laser directly to a single-mode fiber, and has demonstrated capability for simple, compact and efficient high-power diode laser systems. Far high collection and coupling efficiencies, the refractive microlens has been fabricated by utilizing both sides of a GaP substrate, in which the first side was used to remove the astigmatism of the laser output and the second side to focus the beam to a spot size comparable to the fiber mode. The microlenses have been accurately formed by using a recent technique of mass-transport smoothing of etched multimesa preforms. Initial fiber-coupling experiments showed powers as high as 360 mW at the fiber output, and coupling efficiency as high as 29.5% has been measured at a lower power.<>
Sponsorship	IEEE Lasers and Electro-Optics Society
Starting Page	1315
Ending Page	1317
Page Count	3
File Size	364618
File Format	PDF
ISSN	10411135
Volume Number	7
Issue Number	11
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1995-11-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Lenses Microoptics Optical coupling Fiber lasers Optical device fabrication Diode lasers Optical refraction Vision defects Laser modes Laser beams
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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