Semiconductor laser array driving method, semiconductor laser ar

Details Semiconductor laser array driving method, semiconductor laser ar Semiconductor laser array driving method, semiconductor laser ar

1996-10-18

1998-09-15

Bovernick, Rodney B.

Coherent light generators

Particular active media

Semiconductor

372 38, 372 34, 372 24, H01S 308

Patent

active

058090525

ABSTRACT:
A semiconductor laser array driving method for driving a semiconductor laser array having a plurality of light-emitting points arranged on a base member. The semiconductor laser array driving method has a step of driving the plurality of light-emitting points by a driving pulse current of a pulse width and a duty factor meeting an inequality: .DELTA.T.sub.1 /.DELTA.T.sub.0 <1/2, where .DELTA.T.sub.0 is a temperature rise in active layers of the light-emitting points when the semiconductor laser array is driven in a continuous drive mode using a continuous current, and .DELTA.T.sub.1 is a temperature rise in the active layers of the light-emitting points when the semiconductor laser array is driven in a pulse drive mode using a pulse current. In the semiconductor laser array driving method, the plurality of light-emitting points are driven by a driving pulse current having a duty factor of 0.4 or below meeting an inequality: y<3.1 exp(-8.9x), where x is a duty factor and y is a pulse width (.mu.s).

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patent: 5499079 (1996-03-01), Kinoshita et al.
patent: 5528611 (1996-06-01), Scheps

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