Distributed feedback devices with perturbations deviating from u

Details Distributed feedback devices with perturbations deviating from u Distributed feedback devices with perturbations deviating from u

1976-02-02

1978-06-20

Miller, Jr., Stanley D.

Oscillators

Molecular or particle resonant type

350 9613, H01S 300

Patent

active

040964469

ABSTRACT:
Distributed feedback devices such as distributed feedback lasers are modified by introduction of a central coupling strength discontinuity or other deviation from uniform nature of the distributed perturbations, in order to promote the transmission of oscillation of a single mode in preference over the nearest redundant modes. The class of deviations from uniform coupling strength may be mathematically termed antisymmetric deviations, because they are deviations about the midpoint of the perturbation pattern which result in a distinction of effect of the two halves of the pattern, taking either half as a reference pattern by itself.

REFERENCES:
patent: 3760292 (1973-09-01), Kogelnik et al.
patent: 3795434 (1974-03-01), Ash
patent: 3891302 (1975-06-01), Dabby et al.
patent: 3970959 (1976-07-01), Wong et al.
Alferov et al., Soviet Physics-Semiconductors, vol. 8, No. 10, Apr. 1975, pp. 1321-1322.
Shubert, J. of Applied Physics, vol. 45, No. 1, Jan. 1974, pp. 209-215 +p. 2811 (ibid, Jun. 1974).

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