Results 241 to 250 of about 222,692 (298)

Frequency-stabilized laser-diode-pumped Nd:YAG laser

Optics Letters, 1989
We 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, A, Brillet, C N, Man, O, Crégut, G, Kerr   +4 more
openaire   +2 more sources

Fiber-based acetylene-stabilized laser

2008 Conference on Precision Electromagnetic Measurements Digest, 2008
We describe a fiber-based acetylene-stabilized laser, where light is coupled to free-space only to pass through the acetylene cell. The system is constructed using standard components, which makes the approach cost effective and straightforward to implement. The Doppler-free spectrum of acetylene is detected using a simple collinear pump-probe geometry,
Ahtee, V., Merimaa, M., Nyholm, K.
openaire   +3 more sources

Momentum gaps and laser stability

Journal of Applied Physics, 1993
The impact of a momentum gap on the stability of a semiconductor laser is examined. We identify a condition which, when satisfied, suppresses the first order perturbation on both the intensity and the phase of such a laser. The same condition also provides a uniform intensity envelope in the laser cavity.
T. G. Brown, L. Olofsson
openaire   +1 more source

Microcavity‐Stabilized Quantum Cascade Laser

Laser & Photonics Reviews, 2015
Narrow‐linewidth lasers are key elements in optical metrology and spectroscopy. Spectral purity of these lasers determines accuracy of the measurements and quality of collected data. Solid state and fiber lasers are stabilized to relatively large and complex external optical cavities or narrow atomic and molecular transitions to improve their spectral ...
Siciliani de Cumis Mario, Borri Simone, Insero Giacomo, Galli Iacopo, Savchenkov Anatoliy, Eliyahu Danny, Ilchenko Vladimir, Akikusa Naota, Matsko Andrey, Maleki Lute, De Natale Paolo   +10 more
openaire   +3 more sources

Frequency stability of a Zeeman-stabilized laser

Applied Optics, 1985
The frequency of a commercial hard-sealed He–Ne laser has been stabilized to the center of the discharge gain profile using the mode splitting caused by an axial magnetic field. The absolute frequency has been measured repeatedly during intermittent operation over 20 months. Its drift over most of this period has been 2.6 ± 0.7 MHz/yr.
openaire   +2 more sources

Microcavity-Stabilized Quantum Cascade Laser

Conference on Lasers and Electro-Optics, 2016
A CaF2 whispering gallery mode microresonator is used for frequency stabilization and linewidth narrowing of a mid-IR quantum cascade laser. Sub-Doppler recording of a CO2 transition demonstrates the suitability of the system for high-resolution spectroscopy.
Borri Simone, De Cumis Mario Siciliani, Insero Giacomo, Bartalini Saverio, Pastor Pablo Cancio, Mazzotti Davide, Galli Iacopo, Giusfredi Giovanni, Santambrogio Gabriele, D'Ambrosio Davide, Savchenkov Anatoliy, Eliyahu Danny, Ilchenko Vladimir, Akikusa Naota, Matsko Andrey, Maleki Lute, De Natale Paolo   +16 more
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External dye-laser frequency stabilizer

Optics Letters, 1984
We describe an external dye-laser frequency stabilizer that combines an acousto-optic frequency shifter with a fast electro-optic phase modulator. A compensating electronic delay line in the crossover network provides a near-ideal transducer response while keeping the voltage across the electro-optic crystal away from the amplifier limits.
J L, Hall, T W, Hänsch
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Soliton Laser: Geometry and Stability

Optics and Spectroscopy, 2000
It is shown that by properly choosing the geometry of mirrors and the arrangement of nonlinear elements in a confocal nonlinear optical microresonator with gain and losses, spatially localized wave structures, which are stable with respect to a broad class of perturbations, can be excited.
openaire   +1 more source

Laser Wavelength Stabilization

2018
Figure 7.1 depicts the scheme of a feedback loop that underlies many servo systems used to stabilize the frequency of optical lasers. This chapter presents examples of the ways this stabilization can be realized. Basically, the scheme consists of a wavelength comparator that generates the error signal for the feedback loop by processing a reference ...
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Stabilized laser for hole burning and hole burning for stabilized lasers

OSA Annual Meeting, 1993
A commercial high resolution laser (Coherent 699-21) has been modified by the inclusion of a fast phase modulator to give an improved stability.
N. B. Manson, M. Sellars, P. T. H. Fisk, R. S. Meltzer   +3 more
openaire   +1 more source