Multiple laser having a distributed resonator

Details Multiple laser having a distributed resonator Multiple laser having a distributed resonator

1979-02-13

1982-01-05

Davie, James W.

Oscillators

Molecular or particle resonant type

350 9611, H01S 319

Patent

active

043096670

ABSTRACT:
A semiconductor laser particularly useful for frequency multiplexing in optical telecommunications having a distributed resonator supplying from a single etched grating, two or more radiations of different wavelengths. The laser comprises a junction formed by an n-type substrate, a p-type radiation-confinement region, and a surface region, a grating being etched at the interface between the confinement region and the surface region. Useful elementary bands of the junction for the attainment of the laser effect are fixed by proton implantation in the surface region of the junction. The elementary band-type regions are convergent and form, with the perpendicular to the grooves of the grating, angles that are determined so that the spacing along the various bands has a specified value linked directly to the wavelength of the corresponding emitted radiation.

REFERENCES:
Aiki et al., "Frequency Multiplexing Light Source With Monolithically Integrated Distributed-Feedback Diode Lasers", Applied Physics Letters,vol. 29, No. 8, Oct. 15, 1976, pp. 506-508.

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