Results 281 to 290 of about 3,145,730 (353)

Frequency Stabilization of a Gas Laser

Applied Optics, 1969
The frequency of a gas laser was stabilized by making use of the competition between the oppositely circularly polarized components of a single cavity mode of a laser in an axial magnetic field. For appropriate transitions the coupling between the polarizations leads to a sharp crossover in their intensities as the cavity is tuned across the center of ...
W J, Tomlinson, R L, Fork
openaire   +2 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

Ellipsometry with a stabilized Zeeman laser

Applied Optics, 1990
A novel ellipsometric method was introduced in an earlier publication, based on a rotating plane polarized beam. We show that the method is substantially improved by using a stabilized Zeeman laser as the light source.
L, Singher, A, Brunfeld, J, Shamir
openaire   +2 more sources

Stabilized Biasing of Semiconductor Lasers

Bell System Technical Journal, 1983
In this paper we analyze the design of biasing and control circuits for semiconductor lasers in a generalized context based on an idealized laser characteristic. In particular, we address three major design considerations: whether to bias the laser above or below threshold, how to stabilize the optical output levels independent of variation in the ...
Robert G. Swartz, Bruce A. Wooley
openaire   +1 more source

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

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

10-15-level laser stabilization down to fiber thermal noise limit using self-homodyne detection.

Optics Letters
We demonstrate a self-homodyne detection method to stabilize a continuous-wave 1550-nm laser to a 1-km optical fiber delay line, achieving a frequency instability of 6.3 × 10-15 at a 16-ms averaging time.
Igju Jeon, Woosong Jeong, Changmin Ahn, Jungwon Kim   +3 more
semanticscholar   +1 more source

Frequency stability and stabilization of a chemical laser

IEEE Journal of Quantum Electronics, 1978
We have built a low-power CW HF/DF chemical laser, designed to achieve high-frequency stability. Measurements are reported which characterize the instantaneous spectral width of the laser output to less than one part in 1011( \Delta\nu kHz) and the variations in absolute frequency of this emission with time to four parts in 1010( \Delta\nu = \pm20 kHz)
J. Munch, M. Kolpin, J. Levine
openaire   +1 more source

Centralized design and production of the ultra-high vacuum and laser-stabilization systems for the AION ultra-cold strontium laboratories

AVS Quantum Science
This paper outlines the centralized design and production of the ultra-high-vacuum sidearm and laser-stabilization systems for the AION Ultra-Cold Strontium Laboratories.
B. Stray, O. Ennis, S. Hedges, S. Dey, M. Langlois, K. Bongs, S. Lellouch, M. Holynski, B. Bostwick, J. Chen, Z. Eyler, V. Gibson, T. Harte, C. C. Hsu, M. Karzazi, J. Mitchell, N. Mouelle, U. Schneider, Y. Tang, K. Tkalcec, Y. Zhi, K. Clarke, A. Vick, K. Bridges, J. Coleman, G. Elertas, L. Hawkins, S. Hindley, K. Hussain, C. Metelko, H. Throssell, C. Baynham, O. Buchmüller, D. Evans, R. Hobson, L. Iannizzotto-Venezze, A. Josset, E. Pasatembou, B. Sauer, M. Tarbutt, L. Badurina, A. Beniwal, D. Blas, J. Carlton, J. Ellis, C. McCabe, E. Bentine, M. Booth, D. Bortoletto, C. Foot, C. M. Gómez-Monedero Castellanos, T. Hird, K. Hughes, A. James, A. Lowe, J. March-Russell, J. Schelfhout, I. Shipsey, D. Weatherill, D. Wood, S. Balashov, M. Bason, J. Boehm, M. Courthold, M. van der Grinten, P. Majewski, A. L. Marchant, D. Newbold, Z. Pan, Z. Tam, T. Valenzuela, I. Wilmut   +71 more
semanticscholar   +1 more source

Unified laser stabilization and isolation on a silicon chip

Nature Photonics
Rapid progress in photonics has led to an explosion of integrated devices that promise to deliver the same performance as table-top technology at the nanoscale, heralding the next generation of optical communications, sensing and metrology, and quantum ...
Alexander D. White, G. H. Ahn, Richard Luhtaru, Joel Guo, Theodore J. Morin, Abhi Saxena, L. Chang, Arka Majumdar, K. van Gasse, J. Bowers, J. Vučković   +10 more
semanticscholar   +1 more source