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Puscas, Niculae N.; Scarano, D.; Girardi, R.; Montrosset, Ivo

doi:10.1023/a:1018565230326

Cited by 7 publications

(6 citation statements)

References 9 publications

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“…Figures 4 (a) and (b) show the wavelength dependence of the Fano factor f …0; ¶ † for an input signal of 1 mW and an input pump power of 150 mW (highpump regime) in TE and TM polarizations respectively. As can be seen, the behaviour of the Fano factor is determined by the absorption and emission crosssections of Er 3 ‡ -doped LiNbO 3 [9,10]. In the case of curved waveguides, at ¶ˆ1531 nm, the Fano factor is equal to 2.8 for TE and to 2.3 for TM polarizations, these values being higher than in the case of straight waveguides [10].…”

Section: Discussion Of the Simulation Resultsmentioning

confidence: 96%

“…As can be seen, the behaviour of the Fano factor is determined by the absorption and emission crosssections of Er 3 ‡ -doped LiNbO 3 [9,10]. In the case of curved waveguides, at ¶ˆ1531 nm, the Fano factor is equal to 2.8 for TE and to 2.3 for TM polarizations, these values being higher than in the case of straight waveguides [10]. We think that this is due to the distortion of the pump and signal mode intensity pro®les.…”

Section: Discussion Of the Simulation Resultsmentioning

confidence: 99%

“…The values of the Fano factor increase in both cases. As can be seen from ®gures 6 (a) and (b), for a curved waveguide length of about 2.5 cm, the photon statistics can be assumed to be Poissonian, which characterizes the coherent radiations [10]. Figure 7 presents the variation in the spontaneous emission factor with the waveguide length.…”

Section: Discussion Of the Simulation Resultsmentioning

confidence: 99%

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Modelling the output statistics of Er-doped LiNbO3 curved waveguide amplifiers

Puscas

Wacogne

Ducariu

et al. 1999

Journal of Modern Optics

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In this paper, we present a theoretical evaluation of curved Er 3 ‡ -doped LiNbO 3 waveguide statistical parameters. We calculate the output mean photon number, the standard deviation, the Fano factor and the statistical uctuations. Simulations are performed using the small-gain approximation and the photon statistics master equation of the linear ampli®er, transposed to the case of curved ampli®ers. The evolution of the above-mentioned device characteristics with various pump powers, waveguide lengths and signal wavelengths are also presented.

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Section: Discussion Of the Simulation Resultsmentioning

confidence: 96%

Section: Discussion Of the Simulation Resultsmentioning

confidence: 99%

Section: Discussion Of the Simulation Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Modelling the output statistics of Er-doped LiNbO3 curved waveguide amplifiers

Puscas

Wacogne

Ducariu

et al. 1999

Journal of Modern Optics

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“…The channel waveguides, with parallel cuts and polished end faces, are lowre¯ectivity optical resonators [12,13]. For these structures, the contrast of the output signal depends directly on the propagation losses.…”

Section: Interferometric Methodsmentioning

confidence: 99%

Propagation losses of copper-ion-exchanged channel optical waveguides

Salazar¹,

Villalobos²,

Porte³

et al. 1999

Journal of Modern Optics

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We have measured the propagation losses of Cu±Na-ion-exchanged channel glass waveguides using both scattering and interferometric methods. In the ®rst method, the waveguide was coated with a¯uorescence ®lm to enhance the scattered optical ®eld along the channel waveguide which was then captured by a charge-coupled device camera. A straight line is adjusted to the intensity pro®le by the least-squares method, and the slope yields the attenuation coe cient. In the interferometric method, the temperature of the waveguides was changed and the intensity output was measured. From contrast changes of waveguide's intensity output, the attenuation coe cient is calculated. Also, an analysis of the optical absorption of copper waveguides in the 200±1900 nm range to detect the copper oxidation state is presented.

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“…[9][10][11] Double-pass waveguide amplifiers have been studied numerically, including Er 3ϩ -doped LiNbO 3 and Nd 3ϩ -doped silica waveguides. 23,25 Double-pass amplification has also been studied numerically in a variety of semiconductor diode laser configurations. Thus, transverse effects and filamenting have been considered in semiconductor lasers in which the right and left travelling components are competing for the same gain medium.…”

Section: -25mentioning

confidence: 99%

Double-pass high-gain laser amplifiers

Casperson

Moore

Casperson

1999

Journal of Applied Physics

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Double-pass laser amplifiers have advantages of compactness and efficiency in the amplification of optical signals, and such amplifiers have been employed in a wide range of optical systems. Work in this area is reviewed briefly, and analytical solutions are obtained for the intensity of the electromagnetic waves in double-pass homogeneously-broadened high-gain laser amplifiers. Expressions are derived relating the output power to the input, including the effects of arbitrary mirror reflectivity and frequency detuning from line center. In the limits of weak saturation and of high reflectivity the results are consistent with earlier studies.

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Cited by 7 publications

References 9 publications

Modelling the output statistics of Er-doped LiNbO3 curved waveguide amplifiers

Modelling the output statistics of Er-doped LiNbO3 curved waveguide amplifiers

Propagation losses of copper-ion-exchanged channel optical waveguides

Double-pass high-gain laser amplifiers

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