Coherent light generators – Particular temperature control – Heat sink
Patent
1996-02-07
1998-05-26
Davie, James W.
Coherent light generators
Particular temperature control
Heat sink
372108, 372109, H01S 302
Patent
active
057578303
ABSTRACT:
In an apparatus and method for aligning a microlens relative to an edge-emitting semiconductor laser, the components are aligned and coupled without the need for intermediate optics. An edge-emitting semiconductor laser is mounted to a support body which preferably operates as a heat sink. The support body has a side face, which is substantially parallel by the emitting face of the laser. The microlens is formed on a lens substrate. The lens substrate is mounted adjacent the emitting face of the laser and further mounted adjacent the side face of the support body such that the optical axis of the lens substantially aligns with the optical axis of the laser. A substantial portion of the lens substrate extends along the plane of the side face of the support body. The invention has applications in coupling high-power laser energy into fiber optics and in optical computing devices requiring arrays of lasers.
REFERENCES:
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patent: 5260822 (1993-11-01), Missaggia et al.
Olbright, G.R., "Micro-Optic and Microelectronic Integrated Packaging of Vertical Cavity Laser Arrays," SPIE, vol. 1851, pp. 97-105.
Liau, Z.L., "Mass-Transport Fabrication of Large-Numerical-Aperture Microoptics", Reprinted from Micro--Optics/Micromechanics and Laser Scanning and Shaping, Proceedings Reprint, SPIE--The International Society for Optical Engineering, vol. 2383, pp. 310-317, San Jose, California (7-9 Feb. 1995).
Levy, J., "Hybrid Binary Optic Cylinder Lens Array for Collimation of Diode Laser Arrays", SPIE--The International Society for Optical Engineering, Micro-Optics/Micromechanics and Laser Scanning and Shaping, vol. 2383:278-282, San Jose, California (7-9 Feb. 1995).
Beach, R.J., et al., "Applications of Microlens-Conditioned Laser Diode Arrays", SPIE--The International Society for Optical Engineering, Micro-Optics/Micromechanics and Laser Scanning and Shaping, vol. 2383:283-297, San Jose, California (7-9 Feb. 1995).
Connely, S.W., et al., "Diffraction-Limited Virtual Point Source Microlenses", SPIE--The International Society for Optical Engineering, Micro-Optics/Micromechanics and Laser Scanning and Shaping, vol. 2383:252-260, San Jose, California (7-9 Feb. 1995).
Liau Zong-Long
Tsang Dean Z.
Walpole James N.
Davie James W.
Massachusetts Institute of Technology
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