Coherent light generators – Particular temperature control – Heat sink
Patent
1995-03-02
1997-03-11
Davie, James W.
Coherent light generators
Particular temperature control
Heat sink
372 35, 372 38, 372109, H01S 3025
Patent
active
056109300
ABSTRACT:
An array (10) of diode lasers (12) is comprised of a substrate (22) having a plurality of electrically conductive surface areas (24, 24a, 24b, 24c) and a plurality of diode laser subassemblies (20) individual ones of which are conductively coupled to one of the plurality of surface areas (24a). Each of the diode laser subassemblies includes a diode laser (12), preferably a SE-DFB diode laser, that is conductively coupled to and mounted upon a first surface of an electrically conductive body or submount (14). The submount has a second opposite surface that is electrically coupled to and mounted upon one of the electrically conductive areas, preferably with a layer (25) of compliant, deformable material such as indium foil or an indium alloy. The individual diode lasers are preferably electrically connected in a series, voltage adding configuration. The substrate further includes a plurality of electrical conductors for connecting to individual ones of the diode lasers such that a current flow can be established through a single diode laser. This facilitates the alignment process, and also enables individual diode lasers to be selectively energized. For each of the subassemblies there is provided at least one electrically conductive clamping member (26, 28, 30) for compressively urging the submount towards the substrate and for also coupling a current flow to the diode laser. A predetermined number of the subassemblies are arranged in a linear pattern on the substrate, and a lens (34) is disposed relative to the diode lasers in the linear pattern for collimating an output beam from individual ones of the diode lasers. A cylindrical lens is a presently preferred embodiment for the collimating lens.
REFERENCES:
patent: 5040187 (1991-08-01), Karpinski
patent: 5081639 (1992-01-01), Snyder et al.
patent: 5084886 (1992-01-01), Martin
patent: 5105429 (1992-04-01), Mundinger et al.
patent: 5238531 (1993-08-01), Macomber et al.
patent: 5241556 (1993-08-01), Macomber et al.
patent: 5251098 (1993-10-01), Schmidt
patent: 5345466 (1994-09-01), Macomber
L. S. Goldmann et al, "Lead-Indium for Joining a Semiconductor Chip to a Substrate," IBM Technical Disclosure Bulletin, vol. 16, No. 11, Apr. 1974 pp. 3610-3611.
"Recent Developments in Surface Emitting Distributed Feedback Arrays", S. Macomber et al., Proc., SPIE, vol. 1219, pp. 228-232, 1990 (No month).
"Two-Dimensional Surface Emitting Distributed Feedback Laser Arrays", J. S. Mott et al., IEEE Photon, Lett., vol. 1, pp. 202-204, 1989, Aug.
"Surface-Emitting Distributed Feedback Semiconductor Laser", S. Macomber et al., Appl. Phys. Lett. 51(7) pp. 472-474, Aug. 1987.
Lee Patricia A.
Macomber Steven H.
Davie James W.
Denson-Low W. K.
Hughes Aircraft Company
Schubert W. C.
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