Driver circuit of a tunable laser diode

Details Driver circuit of a tunable laser diode Driver circuit of a tunable laser diode

1991-12-02

1993-10-19

Davie, James W.

Coherent light generators

Particular beam control device

Optical output stabilization

372 28, 372 31, H01S 310

Patent

active

052552764

ABSTRACT:
A driver circuit of a laser diode. The laser diode has a first electrode structure for injecting a first drive current with a first magnitude and a second electrode structure separated from the first electrode structure for injecting a second drive current with a second magnitude. The second electrode structure is provided in correspondence to a location in diode at which said carriers are depleted most. The driver circuit comprises a presetting circuit for presetting a relationship between the first and second magnitudes, and a current distribution circuit controlled by the presetting circuit for producing the first and second drive currents with respective magnitude satisfying the relationship that is preset by the presetting means.

REFERENCES:
patent: 4932034 (1990-06-01), Usami et al.

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