Modulators – Amplitude modulator – Nonlinear device controlled by modulating signal
Patent
1985-05-30
1988-04-19
Cangialosi, Salvatore
Modulators
Amplitude modulator
Nonlinear device controlled by modulating signal
350485, 350486, H01S 310
Patent
active
047392878
ABSTRACT:
The invention relates to an apparatus for external modulation of high-efficiency CO.sub.2 laser beams of defined wavelength, particularly for use in CO.sub.2 laser material working apparatuses. According to the invention two plates made of transparent material are arranged parallel to each other, the inner surfaces of the plates are reflective and the outer surfaces are non-reflective. The two plates are mounted so that one of the plates is rigidly connected to a massive oscillation-resistant base which comprises a strong permanent magnet, and that the other plate, together with a special hollow cylinder, is fastened on an elastic membrane, so that an oscillatable system is formed which, on the one hand, is driven by the electro-magnetic interaction between the permanent magnet and a coil and that the system, on the other hand, is damped by means of the frictional force of a suitable damping medium of high viscosity located in a gap between the stationary and the oscillating subsystems, so that a reproducable adjustment of the setting of the gap's width between the two plates is possible via the control current of the coil.
REFERENCES:
patent: 1808137 (1931-06-01), Hartley
patent: 2565514 (1951-08-01), Pajes
patent: 3412324 (1968-11-01), Ludewig, Jr.
patent: 3834795 (1974-09-01), Erickson et al.
Topics in Applied Physics, vol. 7--Integrated Optics, Edited by T. Tamir, Russian Edition 1978, pp. 196-211.
Journal of Quantum Electronics, vol. QE-2, No. 8, Aug. 1966, pp. 243-245.
Applied Optics, vol. 5, No. 1, pp. 87-91, Astheimer et al., "Infrared Modulation by Means of Frustrated Total Internal Reflection".
Pohler Manfred
Schindler Klaus
Staupendahl Gisbert
Cangialosi Salvatore
VEB Kombinat Feinmechanische Werke Halle
LandOfFree
Apparatus for external modulation of high efficiency CO.sub.2 la does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for external modulation of high efficiency CO.sub.2 la, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for external modulation of high efficiency CO.sub.2 la will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2178367