Multiple element laser diode assembly incorporating a cylindrica

Details Multiple element laser diode assembly incorporating a cylindrica Multiple element laser diode assembly incorporating a cylindrica

1997-04-11

1999-10-05

Bovernick, Rodney

Coherent light generators

Particular resonant cavity

Specified cavity component

372 75, 363112, 359668, G02B 1308

Patent

active

059635770

ABSTRACT:
Multiple element laser diode assembly incorporating a cylindrical microlens and at least one of an astigmatism correcting element and a collimating element. The use of a single purpose cylindrical microlens, for instance for circularizing a beam of laser light output from said diode, in operative combination with at least one additional optical element for correcting astigmatism and for collimating the beam enables the passive mounting of the several optical elements of the assembly without an active alignment step. The cylindrical microlens may incorporate as single powered surface, as may the astigmatism correction element. Alternatively, the astigmatism correction element may comprise a tilted optical plate. The collimating lens may be a spherical lens.

REFERENCES:
patent: 4734906 (1988-03-01), Baer et al.
patent: 5432610 (1995-07-01), King et al.
patent: 5555253 (1996-09-01), Dixon
patent: 5636059 (1997-06-01), Snyder

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