Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit
Reexamination Certificate
2006-04-11
2006-04-11
Allen, Stephone B. (Department: 2878)
Radiant energy
Photocells; circuits and apparatus
Photocell controlled circuit
C250S2140LS, C372S016000
Reexamination Certificate
active
07026594
ABSTRACT:
The invention relates to a method for producing radio frequency waves, whereby a pulse laser for producing light pulses having a predetermined spectrum of frequency modes and a predetermined recurrence frequency is operated. The light pulses of the pulse laser are detected by means of a detector device, and corresponding electrical output signals forming the radio frequency signals are produced. Said pulse laser is actuated in a stabilized manner by means of an optical reference signal in such a way that the recurrence frequency of the light pulse is fixed. The invention also relates to a radio frequency generator for implementing said method.
REFERENCES:
patent: 4840456 (1989-06-01), Fye
patent: 5929430 (1999-07-01), Yao et al.
patent: 6008931 (1999-12-01), von Helmolt et al.
patent: 6320179 (2001-11-01), Cox et al.
patent: 6785303 (2004-08-01), Holzwarth et al.
patent: 2003/0160148 (2003-08-01), Yao et al.
patent: 195 14 386 (1996-10-01), None
patent: 199 11 103 (2000-09-01), None
patent: 1 161 782 (2002-10-01), None
patent: WO 00/55948 (2000-09-01), None
C. Rulliere, Femtosecond Laser Pulses, Principles and Experiments, Springer, 1998, pp. 50-57.
K. Imai, et al., 30-THz Span Optical Frequency Comb Generation by Self-Phase Modulation in an Optical Fiber, IEEE Journal of Quantum Electronics, vol. 34, No. 1, Jan. 1998, pp. 54-60.
D. Mogilevtsev, et al.. Group-Velocity Dispersion in Photonic Crystal Fibers, Optics Letters, vol. 23, No. 21, Nov. 1, 1998; pp. 1662-1664.
T.A.Birks, et al., Endlessly Single-Mode Photonic Crystal Fiber, Optics Letters, vol. 22, No. 13, Jul. 1, 1997, pp. 961-963.
T.A.Birks, et al., Dispersion Compensation Using Single-Material Fibers, IEEE Photonics Technology Letters, vol. 11, No. 6, Jun. 1999, pp. 674-676.
J.N.Eckstein, et al., High-Resolution Two-Photon Spectroscopy with Picosecond Light Pulses, Physical Review Letters, vol. 40, No. 13, Mar. 27, 1978, pp. 847-850.
T.Udem, et al., Absolute Optical Frequency Measurement of the Cesium D1 Line with a Mode-Locked Laser, Physical Review Letters, vol. 82, No. 18, May 3, 1999; pp. 3568-3571.
S.N.Bagayev, et al., A Femtosecond Self-Mode-Locked Ti:sapphire Laser With High Stability of Pulse-Repetition Frequency and its Applications, Appl. Phys. B 70, Springer-Verlag 2000, pp. 375-378.
B.Willke, Frequency Stabilization of a Monolithic Nd:YAG Ring Lasre by Controlling the Power of the Laser-Diode Pump Source, Optics Letters, vol. 25, No. 14, Jul. 15, 2000, pp. 1019-1021.
G.Galzerano, High-Frequency-Stability Diode-Pumped Nd:YAG Lasers with the FM Sidebands Method and Doppler-Free Iodine Lines at 532 NM, Applied Optics, vol. 38, No. 33, Nov. 20, 1999, pp. 6962-6966.
M.Al-Mumin, et al., Optical Generation and Sideband Injection Locking of Tunable 11-120GHz Microwave/Millimetre Signals, Electronics Letters, vol. 36, No. 18, Aug. 31, 2000, pp. 1547-1548.
International Search Report re PCT/EP 01/10238 dated Feb. 7, 2002.
Hansch Theodor
Holzwarth Ronald
Udem Thomas
Allen Stephone B.
Caesar, Rivise, Bernstein, Cohen & Poktilow, Ltd.
Lee Patrick J.
Max-Planck-Gesellschaft Zur Forderung der Wissenschaft E.V.
LandOfFree
Method and device for producing radio frequency waves does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and device for producing radio frequency waves, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and device for producing radio frequency waves will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3554503