Results 211 to 220 of about 30,011 (264)
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Frequency-stabilized laser-diode-pumped Nd:YAG laser
Optics Letters, 1989We describe a frequency-stabilized diode-pumped Nd:YAG laser that is actively frequency stabilized relative to a reference Fabry-Perot cavity using the Pound-Drever technique. We describe the servo loop and the measurement of its noise and gain performance and demonstrate its ability to reduce the laser frequency noise close to the shotnoise limit of ...
D, Shoemaker +4 more
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Five-year frequency stability of a Zeeman stabilized laser
Applied Optics, 1989A five-year record of the lockpoint frequency of a Zeeman stabilized laser shows an observed drift rate of 0.3 +/- 0.5 MHz/yr following an initial drift of 5.7 +/- 2.2 MHz/yr in the first eighteen months of intermittent operation. A second Zeeman laser drifted at a rate of -0.8 +/- 1.0 MHz/yr over the last 2.5 yr; the frequency drift was -0.2 +/- 0.6 ...
G S, Sasagawa, M A, Zumberge
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Optogalvanic Laser Frequency Stabilization
1986The CO2 laser radiation field intensity is large enough and when is varied it introduces significant changes in the laser plasma microscopic parameters such as discharge sidelight intensity, plasma impedance and gas temperature. From among these parameters, a distinct interest is given to plasma impedance, because it is possible to establish a direct ...
D. C. Dumitras +3 more
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Stabilization of a laser radiation frequency
Measurement Techniques, 1968The computations and experimental investigations thus carried out show that the use of an external resonator as a frequency discriminator of a laser provides it with a low-inertia automatic frequency control system. The design developed for a high-Q optical resonator provides it with a long-term frequency stability.
A. Ya. Leikin, V. S. Solov'ev
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Laser-frequency division and stabilization
Physical Review A, 1984The current method for measuring an optical frequency relative to the primary time standard, the cesium beam standard at ~9.2 GHz, utilizes a complex frequency synthesis chain involving harmonics of laser and klystron sources. The method has been extended recently to the visible region,1 to the 633 nm He-Ne laser locked to a molecular iodine line, with
R. G. DeVoe, R. G. Brewer
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Frequency stabilized diode lasers
AIP Conference Proceedings, 1991Frequency stabilized semiconductor lasers have many applications in spectroscopy, metrology and coherent communication systems. The last trends and results on frequency stabilization of laser diodes are presented in the report.Three laser systems are considered: a solitary laser diode, a diode with integrated composite cavity, and a semiconductor laser
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Frequency Stabilization of Semiconductor Lasers
2017Stability of laser frequency is one of the most important performances. The frequency stabilization involves basically three parts: a reference frequency, i.e., the target frequency the laser frequency is to be locked, a frequency discriminator, and a method of feedback to tune the laser. The absorption lines of atoms or molecules are mostly often used
Zujie Fang +3 more
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SSFLC for laser frequency stabilization
SPIE Proceedings, 2000The paper describes the application of a Surface-Stabilized Ferroelectric Liquid Crystal (SSFLC) cell as a polarization switch in a frequency stabilization system of a Zeeman laser interferometer. The FLC cell is used as a field-controlled (lambda) /4 plate in which the optic axis can rapidly alternate between two positions, thereby alternatively ...
M. Matuszczyk +3 more
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Frequency stabilization of gas lasers
IEEE Journal of Quantum Electronics, 1965The state of the art in the field of frequency stabilization of gas lasers is surveyed. A brief discussion of the methods employed to determine the frequency stability of lasers is followed by a listing of the principle causes of frequency instability.
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FREQUENCY STABILIZATION OF THE ZEEMAN LASER
Applied Physics Letters, 1967The intensity crossover region with cavity tuning between oscillations on two orthogonally circularly polarized axial modes of a Zeeman laser has been used to stabilize these oscillation frequencies with respect to the center of the atomic transition.
J. Kannelaud, D. G. Peterson, W. Culshaw
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