Coherent light generators – Particular beam control device – Modulation
Patent
1989-03-15
1990-01-30
Sikes, William L.
Coherent light generators
Particular beam control device
Modulation
372 45, 372 96, 372102, H01S 310
Patent
active
048978442
ABSTRACT:
Apparatus for the transmission of information by a laser beam and laser oscillators therefore are disclosed. This apparatus includes at least one laser oscillator for generating a laser beam and means associated with the laser oscillator for varying a characteristical quantity of the laser beam. The laser may take the form of a surface-emitting semiconductor laser, in which case the variable quantity is the spatial mode content of the laser beam. The laser may be provided with externally controllable means for extracting wave energy from a laser wave in the resonator of the laser, in which case the varying quantity is the spatial mode content or the frequency of the laser beam.
REFERENCES:
patent: 4217561 (1980-08-01), Scitres et al.
Uchiyama et al., "GaInAsP/InP Surface Emitting Laser with Current Containing Structure," J. Lightwave Technoli, LT-4, pp. 846-851, 1986.
Liau et al., "Surface-Emitting GaInAsP/InP Laser with Low Threshold Current and High Efficiency", Appl. Phys. Lett., 46, pp. 115-117, 1985.
Wang et al., "Analysis of Ring Distributed Feedback Lasers," Journal of Appl. Phys., vol. 45, No. 9, Sep. 1974, pp. 3978-3980.
Reinhart et al., "Integrated Electro-Optic Intracavity Frequency Modulation of Double-Heterostructure Injection Laser", Appl. Phys. Lett., 27, pp. 532-534, 1975.
Arakawa et al., "Active Q-Switching in a GaAs/AyGaAs Multiquantum Well Laser with an Intracavity Monolythic Loss Modulator", Appl. Phys. Lett., 48, pp. 561-563, 1986.
Reinhart et al., "Electro-Optic Frequency- and Polarization Modulated Injection Laser", Appl. Phys. Lett., 36, pp. 954-957, 1980.
W. T. Tsang, "Enhanced Frequency Modulation in Cleared-Coupled-Cavity Semiconductor Lasers with Reduced Spurious Intensity Modulation," Appl. Phys. Lett., 43(6), Sep. 15, 1963, pp. 527-529.
Epps Georgia Y.
Milde Jr. Karl F.
Sikes William L.
LandOfFree
Information transmission by mode modulation and laser oscillator does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Information transmission by mode modulation and laser oscillator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Information transmission by mode modulation and laser oscillator will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1928282