Results 181 to 190 of about 38,520 (233)
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A fiber-coupled erbium-doped microsphere laser
Conference on Lasers and Electro-Optics (CLEO 2000). Technical Digest. Postconference Edition. TOPS Vol.39 (IEEE Cat. No.00CH37088), 2000Summary form only given. Optical microsphere cavities, with their very high quality-factor and sub-millimeter dimensions, are attractive new building block for fiber optics and photonics. A microsphere made of laser-active material, with an efficient optical pumping scheme, can be configured as a miniature solid-state laser. Because of the small volume
V.S. Ilchenko, X.S. Yao, L. Maleki
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Frequency stabilization of a tunable erbium-doped fiber laser
Optics Letters, 1991A single-frequency Er-doped fiber laser that is tunable from 1.52 to 1.58 ,microm has been constructed. The laser linewidth was determined to be less than 1.6 MHz FWHM by observing the spectrum of the beat between the fiber laser and a 1.523-microm He-Ne laser.
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Chaos and Quasi-period in Erbium-Doped Fiber Laser
2019Nonlinear dynamics in a short cavity Erbium (Er)-doped fiber laser is discussed while a complex dynamical model is presented by a two-level mode containing a periodic absorption of photon. The laser can produce a periodic state and a chaotic state when a periodic square-wave signal is used to modulate absorption of photon.
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Erbium-doped photonic crystal fiber laser
SPIE Proceedings, 20091 Shenzhen Key Laboratory of Laser Engineering, College of Electronic Science and Technolog, Shenzhen University, Shenzhen, Guangdong 518060, P.R.China 2 College of Physical Science and Technology, Shenzhen University, Guangdong 518060, P.R.China Abstract We have demonstrated a low threshold all fiber laser based on a 9.68 m-long small core Erbium ...
Haili Yang +3 more
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Optimization of erbium-doped fiber MOPA laser
Optics Communications, 2010An erbium-doped fiber laser (EDFL) constructed in a master oscillator and power amplifier (MOPA) configuration is analyzed. The pump powers for the fiber cavity laser and the booster amplifier stages are managed properly to achieve maximal pump conversion efficiency.
Y.J. Chiang, C.S. Hsiao, Likarn Wang
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Fast polarization dynamics of an erbium-doped fiber ring laser
Optics Letters, 1996The polarization dynamics of a unidirectional erbium-doped fiber ring laser has been observed for individual round trips in the cavity. A rich variety of dynamic states, including square-wave pulses and irregular temporal patterns, was observed as operating parameters were changed.
Q L, Williams, R, Roy
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Derivation of the threshold pump power of erbium-doped fiber lasers
Optics Letters, 1992Starting from the rate equations describing the interaction between a three-level atom and a two-wavelength field appropriate to the erbium-doped fiber lasers pumped by 980-nm light, we establish an analytical and explicit expression for the threshold pump power of the laser.
J, Chen, X, Zhu, W, Sibbett
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Characterization and optimization criteria for filterless erbium-doped fiber lasers
Journal of the Optical Society of America B, 1994The emission wavelength of a unidirectional ring erbium-doped fiber laser (EDFL) with no filters has been characterized. A measurement of the emission and the absorption erbium-doped fiber cross sections together with a theoretical model based on the solution of the rate equations for the ring laser shows that the laser emission wavelength depends on ...
P. FRANCO +4 more
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Reverse horseshoe and spiral templates in an erbium-doped fiber laser
Physical Review E, 2009Time series obtained from the emission of an erbium-doped fiber ring laser with sine-wave pump modulation have been analyzed in order to determine the topological structure of the underlying chaotic attractor. With appropriate modulation conditions, topological structures not often observed in experimental systems have been found: the reverse horseshoe
Javier, Used, Juan Carlos, Martín
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Electronically tunable, 155-μm erbium-doped fiber laser
Optics Letters, 1990An erbium-doped, silica-based fiber laser was electronically tuned over two ranges from 1529.6 to 1533.3 nm and from 1543.8 to 1563.0 nm with more than 13 mW of maximum power. The tuning element was an intracavity acousto-optic modulator (Bragg cell) configured to feed back the first-order, frequency-shifted deflected beam. The maximum optical/acoustic
WYSOCKI, PF +2 more
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