Coherent semiconductor injection laser array

Details Coherent semiconductor injection laser array Coherent semiconductor injection laser array

1974-08-14

1981-01-20

Larkins, William D.

Oscillators

Molecular or particle resonant type

331 945C, H01S 305, H01S 3096

Patent

active

042465486

ABSTRACT:
Disclosed is a spatially coherent semiconductor injection laser array. The system comprises a plural element laser diode array placed symmetrical in respect to an optical axis. An external resonating cavity formed of spherical lenses and plane mirrors is disposed about the array with its axis of symmetry coincident with the optical axis. A spatial filter in the Fourier plane of the laser diode array selects the TEM.sub.00 mode generated from each of the elements in the array. In operation, the system generates spatially coherent radiation from each of the elements of the array. The radiations are coherently coupled between all of the elements to provide a high optical power output in a spatially coherent beam.

REFERENCES:
patent: 3340479 (1967-09-01), Ashkin
patent: 3701044 (1972-10-01), Paoli et al.
patent: 3715685 (1973-02-01), Gordon et al.
patent: 3815045 (1974-06-01), Ito
patent: 3835415 (1974-09-01), Rutz et al.
Philipp-Rutz, "GaAs Laser Radiation", IEEE Journal of Quantum Electronics, vol. QE 8, No. 7, Jul. 1972, pp. 632-641.
Ripper et al., "Optical Coupling", Applied Physics Letters, vol. 17, No. 9, Nov. 1, 1970, pp. 371-373.

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