Coherent light generators – Particular beam control device – Optical output stabilization
Reexamination Certificate
2010-02-09
2011-11-01
Stultz, Jessica (Department: 2828)
Coherent light generators
Particular beam control device
Optical output stabilization
C372S020000, C372S029011
Reexamination Certificate
active
08050301
ABSTRACT:
Systems and methods for stabilizing laser frequency based on an isoclinic point of an atomic or molecular medium are provided herein. A system may include: a transmission cell containing a gas and configured to transmit light from the laser, the gas having an absorption spectrum with an isoclinic point; a photodiode generating an output based on an amplitude of transmitted laser light; and circuitry configured to tune the frequency of the laser to the isoclinic point of the absorption spectrum based on the output. The absorption spectrum may have first and second overlapping peaks respectively corresponding to first and second transitions of the gas, the isoclinic point being a saddle point between the first and second peaks. The first and second peaks may have substantially equal amplitude as one another and/or may broaden substantially equally as each other as a function of a physical parameter of the gas.
REFERENCES:
patent: 4833681 (1989-05-01), Akiyama et al.
patent: 5392303 (1995-02-01), Shiozawa et al.
patent: 5553087 (1996-09-01), Telle
patent: 6151340 (2000-11-01), Rivers
Affolderbach et al., “A compact laser head with high-frequency stability for Rb atomic clocks and optical instrumentation,” Review of Scientific Instruments 76, 073108, 5 pages (2005).
Furuta et al., “Evaluations of frequency shift and stability in rubidium vapor stabilized semiconductor lasers,” Applied Optics 28(17), 3737-3743 (Sep. 1, 1989).
International Union of Pure and Applied Chemistry (IUPAC), “Glossary of terms used in photochemistry,” Pure & Appl. Chem. 68(12), 4 pages (1996).
Schawlow, “Spectroscopy in a new light,” Reviews of Modern Physics 54(3), 13 pages (Jul. 1982).
Tetu et al., “Toward the realization of a wavelength standard at 780 nm based on a laser diode frequency locked to rubidium vapor,” IEEE Transactions on Instrumentation and Measurement 40(2), 191-195 (Apr. 1991).
Weel et al., “Laser-frequency stabilization using a lock-in amplifier,” Can. J. Phys. 80, 1449-1458 (2002).
Whiting, “An empirical approximation to the Voigt profile,” J. Quant. Spectrosc. Radiat. Transfer 8, 1379-1384 (1968).
Camparo James C.
Wells Nathan P.
Choi Jaime D.
Jones Day
Niu Xnning
Pisano Nicola A.
Stultz Jessica
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