Phase locked diode laser array

Details Phase locked diode laser array Phase locked diode laser array

1985-12-16

1988-01-26

Davie, James W.

Coherent light generators

Particular active media

Semiconductor

357 16, 357 17, 372 18, 372 45, 372 46, 372 97, H01S 319, H01S 3082, H01L 3300

Patent

active

047220899

ABSTRACT:
The present invention is a semiconductor diode laser array which favors oscillation in the zero degree phase shift mode. The array comprises first and second sets of waveguides which are interdigitated in a coupling region. Energy transfer between the first and second sets of waveguides by way of evanescent coupling is needed to define the feedback paths for sustaining laser oscillations in the waveguides. Such coupling is optimum and the threshold current for lasing lowest when all of the waveguides in both sets oscillate in phase.

REFERENCES:
patent: 4255717 (1981-03-01), Seifres et al.
patent: 4369513 (1983-01-01), Umeda et al.
D. Botez, "Laser Diodes Are Powered-Packed," IEEE Spectrum, Jun. 1985, pp. 43-53.

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