Coherent light generators – Particular active media – Semiconductor
Patent
1981-12-02
1984-02-07
Davie, James W.
Coherent light generators
Particular active media
Semiconductor
357 17, 357 61, H01S 319
Patent
active
044307403
ABSTRACT:
A semiconductor laser wherein a wide range of laser emission wavelengths can be obtained by varying the composition of monocrystalline alloys employed as semiconductor material. The semiconductor structure comprises on a monocrystalline indium phosphide substrate of a predetermined conductivity type successive epitaxial layers consisting of a first confinement layer of the same conductivity type, an active layer having the formula (Ga.sub.x Al.sub.1-x).sub.0.47 In.sub.0.53 As where x is within the range of 0 to 0.27, and a second confinement layer of opposite conductivity type. The confinement layers are composed of either InP or a ternary alloy Al.sub.0.47 In.sub.0.53 As or a quaternary alloy Ga.sub.x' Al.sub.1-x' As.sub.y' Sb.sub.1-y' where x' and y' are chosen so that the material should have a predetermined crystal lattice and an energy gap of greater width than the substrate material.
REFERENCES:
patent: 4207122 (1980-06-01), Goodman
patent: 4340966 (1982-07-01), Akiba et al.
Casey et al., "III-V Binary and Quaternary Lattice-Matching Systems for Heterostructure Lasers", Heterostructure Lasers Part B: Materials and Operating Characteristics, Academic Press, 1978, pp. 32, 33, 45 and 46.
IEEE Journal of Quantum Electronics, vol. QE-13, No. 8, Aug. 1977, New York, L. M. Dolginov et al: "Multicomponent Solid-Solution Semiconductor Lasers", pp. 609-611.
Integrated Optics, Topical Meeting on Integrated Optics, 12-14, Jan. 1976 Optical Society of America, Washington; M. A. Pollack "CW Double Heterostructure LED and Laser Sources for the 1 .mu.m . . . ".
de Cremoux Baudouin
Nuyen Trong L.
"Thomson-CSF"
Davie James W.
LandOfFree
Long-wavelength semiconductor laser does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Long-wavelength semiconductor laser, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Long-wavelength semiconductor laser will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2165030