Oscillators – Molecular or particle resonant type
Patent
1975-04-25
1976-09-28
La Roche, Eugene
Oscillators
Molecular or particle resonant type
357 18, H01S 319
Patent
active
039835090
ABSTRACT:
A laser having layers of a first material interleaved with layers of a second material with the first material having a different index of refraction and bandgap than those of the second material. The thicknesses of the layers of the first and second materials satisfy the relationship t = m .lambda./2n where m is the laser mode and n is the index of refraction of the material, such that the right and left going waves of the light produced by the layers of the first material when the laser is pumped are coupled and reinforced in a coherent manner by the layers of the second material such that reflections from the second material are in phase, thus allowing laser operation in the absence of discrete end mirrors.
REFERENCES:
patent: 3737737 (1973-06-01), Heywang et al.
"Quantum States of Confined Carriers, Etc.", R. Dingle et al., Physical Review Letters, vol. 33, No. 14, Sept. 3, 1974, pp. 827-830.
Burnham Robert D.
Scifres Donald R.
Anderson T. J.
Beck J. E.
La Roche Eugene
Xerox Corporation
Zalman L.
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