Spectral dynamics of multimode Nd3+- and Yb3+-doped fibre lasers with intracavity absorption

Hünkemeier, Jörg; Böhm, Roger; Baev, V. M.; Toschek, P. E.

doi:10.1016/s0030-4018(00)00532-0

Cited by 17 publications

(6 citation statements)

References 16 publications

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“…Our interest for answering the questions related to this non-equilibrium intensity distribution is of a fundamental nature and extends, beyond strongly multimode semiconductor lasers, to all those other types of lasere.g. fiber lasers [24] or solid state lasers [25] -which are characterized by the simultaneous operation, at least in transient, of a large number of longitudinal modes.…”

Section: Introductionmentioning

confidence: 99%

Fast dynamics and spectral properties of a multilongitudinal-mode semiconductor laser: evolution of an ensemble of driven, globally coupled nonlinear modes

Puccioni,

Lippi

2014

Preprint

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We analyze the fast transient dynamics of a multi-longitudinal mode semiconductor laser on the basis of a model with intensity coupling. The dynamics, coupled to the constraints of the system and the below-threshold initial conditions, imposes a faster growth of the side modes in the initial stages of the transient, thereby leading the laser through a sequence of states where the modal intensity distribution dramatically differs from the asymptotic one. A detailed analysis of the below-threshold, deterministic dynamical evolution allows us to explain the modal dynamics in the strongly coupled regime where the total intensity peak and relaxation oscillations take place, thus providing an explanation for the modal dynamics observed in the slow, hidden evolution towards the asymptotic state (cf. Phys. Rev. A 85, 043823 ( 2012)). The dynamics of this system can be interpreted as the transient response of a driven, globally coupled ensemble of nonlinear modes evolving towards an equilibrium state. Since the qualitative dynamics do not depend on the details of the interaction but only on the structure of the coupling, our results hold for a whole class of globally, bilinearly coupled oscillators.

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Section: Introductionmentioning

confidence: 99%

Fast dynamics and spectral properties of a multilongitudinal-mode semiconductor laser: evolution of an ensemble of driven, globally coupled nonlinear modes

Puccioni,

Lippi

2014

Preprint

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“…A recent increase in interest in atmospheric environment has motivated the development of optical sensors that are capable of detecting atmospheric trace gases. In view of compactness and ease of operation, diode lasers [1][2][3][4] and fiber lasers [5][6][7] are quite promising as light sources. In this paper, we propose and demonstrate the application of an intracavity erbium-doped fiber ring laser to the detection of molecular absorption.…”

Section: Introductionmentioning

confidence: 99%

“…Intracavity laser spectroscopy is one of the laser spectroscopic methods of high sensitivity, leading to qualitative as well as quantitative analyses of gas molecules. 4,5) Due to the laser cavity, the effective absorption length can be increased, and consequently the apparent absorption of gas molecules is considerably enhanced.…”

Section: Introductionmentioning

confidence: 99%

“…A few works have so far been reported on the application of fiber lasers to gas sensing. Hünkemeier et al 5) applied diode-pumped Nd 3þ and Yb 3þ -doped multimode fiber lasers to sensitive measurements of intracavity absorption in spectral ranges around 0.93 m and 1.1 m. McAleavey et al 6) used the cw output of a tunable Tm 3þ -doped fluoride fiber laser to detect CH 4 absorption at 2.31 m. Matsuoka et al 7) employed an Yb fiber laser (1.038 m) and a distributed feedback laser (1.577 m) to generate mid-IR light (3 m) used for NH 3 detection. In these studies, fiber lasers worked as light sources, without a need for ring cavity configurations.…”

Section: Introductionmentioning

confidence: 99%

“…12,13) Our method deals with the cw output of a fiber ring laser, and we can attain a cavity-length enhancement of 10-80, depending upon the pumping power of a 1480 nm diode laser. The cell length used in the experiment is 18.3 mm; this is much more compact than the open-path space length of 190 cm employed in the case of the intracavity experiment of Hünkemeier et al, 5) in which time-resolved spectra of broad-band laser emission were observed. Our scheme is similar to an experiment of absorption enhancement (of a factor of about 44), conducted with an external-cavity diode laser (1.5 m) and a 25-cmlong Fabry-Perot cavity of a moderate finesse ($100).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Enhanced Detection of Gas Absorption Using an Erbium-Doped Fiber Ring Laser

Mizuno

Mugino

Sekigami

et al. 2002

Jpn. J. Appl. Phys.

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We demonstrate gas sensing using a fiber ring laser composed of an erbium-doped fiber as the laser medium and a compact gas cell module. Acetylene absorption at 1.5 m is enhanced by an intracavity configuration, in which multiple band-pass filters are used to control the wavelength of laser oscillation. A maximum enhancement factor of about 80 is achieved with an 18.3 mm cell under a pressure range below 100 Pa. Experimental results can reasonably be explained by a ring laser theory that describes the influence of acetylene pressure on the threshold and slope efficiency of the laser output characteristics.

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Fiber laser intracavity absorption spectroscopy for in situ multicomponent gas analysis in the atmosphere and combustion environments

et al. 2010

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Spectral dynamics of multimode Nd3+- and Yb3+-doped fibre lasers with intracavity absorption

Cited by 17 publications

References 16 publications

Fast dynamics and spectral properties of a multilongitudinal-mode semiconductor laser: evolution of an ensemble of driven, globally coupled nonlinear modes

Fast dynamics and spectral properties of a multilongitudinal-mode semiconductor laser: evolution of an ensemble of driven, globally coupled nonlinear modes

Enhanced Detection of Gas Absorption Using an Erbium-Doped Fiber Ring Laser

Fiber laser intracavity absorption spectroscopy for in situ multicomponent gas analysis in the atmosphere and combustion environments

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