Folded cavity injection laser

Details Folded cavity injection laser Folded cavity injection laser

1975-12-31

1976-12-07

Sikes, William L.

Oscillators

Molecular or particle resonant type

357 18, H01S 319

Patent

active

039965287

ABSTRACT:
An injection laser, which is chemically etched to provide mirror-like surfaces, also is provided with a chirped diffraction grating. The latter grating, which is etched in the injection laser, combines with the chemically etched sides to provide laser emission in a direction substantially parallel to the current flowing through the laser. As an alternative to the chirped diffraction grating, waveguides are included in the resulting folded cavity laser. Either of the above structures relaxes the fabrication tolerance in the inclined surfaces etched in the laser relative to known folded cavity lasing structures.

REFERENCES:
kazarinov et al., Injection Heterojunction Laser with a Diffraction Grating on Its Contact Surface, Soviet Phys.-Semiconductors, vol. 6, No. 7 (Jan. 1973) pp. 1184-1189.
Dobkin et al., Semiconductor Laser With Local Mirrors, Soviet Phys.-Semiconductors, vol. 4, No. 3 (Sept. 1970) pp. 515-516.

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