A narrowband single-mode dye laser

Schröder, H.; Welling, H.; Wellegehausen, B.

doi:10.1007/bf00884404

Cited by 44 publications

(18 citation statements)

References 7 publications

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“…Because the entry-length formula generally accepted in fluid mechanics cannot be used directly in the present geometry with varying parameters, for calculation of the kinetic energy and energy dissipation the flow is considered to have a flat-headed velocity profile at the inlet. 8 The flow domain as shown in Fig. 1 is solved for by the FEM using the FLOTRAN solver.…”

Section: Analysis and Discussion Of Resultsmentioning

confidence: 99%

“…The dye-laser output characteristics may thus be assumed to depend only on the velocity fluctuations and dye solution temperature fluctuations for the dye laser setup presented here. 8 The detailed design of this type of dye laser is presented elsewhere; 30 here only the design with flow and the thermal analysis of the dye flow duct used are presented. In a concentric annulus, an eccentric ring with its center displaced by a distance e from the center of the annulus ͑i.e., the centers of the ring inner diameter and outer diameter are offset by e͒ is mounted on the inner cylinder.…”

Section: Design Criteriamentioning

confidence: 99%

“…8 The mechanical instabilities may be controlled by the use of a steel vibration-isolation table with magnetic clamps for the dye-laser components. 28 However, a less expensive arrangement is to house the optical components with the dye cell in a single stable structure that can compensate for the environmental effects.…”

Section: Design Criteriamentioning

confidence: 99%

“…The thermal inhomogeneities are generally reduced by increasing the flow velocities in the dye cell. 8 The thermal characteristics of the flow field determine the optical quality of the lasing medium in the dye cell. 9 Since the pump laser has high repetition rates ͑5 to 10 kHz or even more͒, the volume heated by one pulse should be removed before arrival of next pulse.…”

Section: Introductionmentioning

confidence: 99%

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Design criteria and numerical analysis of a stable dye laser with a curved flow cell

Chaube

2008

Opt. Eng.

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The design requirements of a high-stability narrowband dye laser with a curved dye cell, pumped by a copper vapor laser, are discussed. The design is simple and easy to fabricate at low cost. It is shown that the curved dye-cell geometry, with hydraulic diameter varying from 23 to 1 mm and curvature ratio varying from 1 to 81, creates flow conditions that meet the requirements of a stable narrowband tunable dye laser. It is shown numerically that the eddy sizes, temperature fluctuations, and associated energies in boundary layer are responsible for the fluctuations in the output. A dye laser based on this geometry was operated from Reynolds number 184 to 1100. The numerical results agree with the experimental results showing better dye laser stability at higher Reynolds number.

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Section: Analysis and Discussion Of Resultsmentioning

confidence: 99%

Section: Design Criteriamentioning

confidence: 99%

Section: Design Criteriamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Design criteria and numerical analysis of a stable dye laser with a curved flow cell

Chaube

2008

Opt. Eng.

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“…In a CVL pumped dye laser cell, an organic dye solution flows through a channel and is illuminated by the focused pulsed output from the CVL pump beam. The output characteristics of a dye laser depend on mechanical instabilities, velocity fluctuations, pump power variations, and direct dye solution temperature fluctuations [5]. The absorption of the pump beam in the medium follows two mechanisms.…”

Section: Introductionmentioning

confidence: 99%