Closely spaced dual diode lasers

Details Closely spaced dual diode lasers Closely spaced dual diode lasers

1994-06-20

1995-06-06

Bovernick, Rodney B.

Coherent light generators

Particular active media

Semiconductor

372 45, 372 97, 372 36, H01S 3025, H01S 3043

Patent

active

054229057

ABSTRACT:
The present invention is directed to a method and apparatus for fabricating a dual beam semiconductor laser, wherein the laser includes first and second semiconductor laser dies respectively affixed to one another while separated by intervening alignment structures. The alignment structures provide accurate placement of the dual laser beams with respect to one another while also assuring thermal isolation of the laser diodes. The fabrication method employs photolithographic techniques to accurately position the alignment structures across an entire semiconductor wafer, thereby assuring accuracy in alignment of the assembled dual beam lasers. As a result, the need for multiple-step alignment operations commonly employed in the production of multiple diode laser devices is eliminated.

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patent: 5099488 (1992-03-01), Ahrabi et al.
patent: 5105255 (1992-04-01), Shanon et al.
patent: 5283205 (1994-02-01), Sakamoto

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