Experimental and numerical modeling studies of a pulsed rubidium optically pumped alkali metal vapor laser

Zameroski, Nathan D.; Hager, Gordon D.; Rudolph, Wolfgang; Hostutler, David A.

doi:10.1364/josab.28.001088

Cited by 40 publications

(15 citation statements)

References 26 publications

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“…In particular, the theoretical curve of our model is much closer to the experimental result than the simulation curve of Ref. [21]. The results prove that our theoretical system is reliable in analyses of the temporal characteristics of a DPAL.…”

Section: Comparison Of Experimental and Simulative Resultssupporting

confidence: 74%

“…[21], the temporal waveforms were both theoretically evaluated and experimentally measured. By using the parameters given in Ref.…”

Section: Comparison Of Experimental and Simulative Resultsmentioning

confidence: 99%

“…By using the parameters given in Ref. [21], we simulate the laser pulse in time domain by assuming that the pump pulse has a Gaussian profile. The results are diagrammed in Fig.…”

Section: Comparison Of Experimental and Simulative Resultsmentioning

confidence: 99%

“…However, most of these studies have addressed only output performances. Although a few studies have been reported in regarding the characteristics of DPALs in time domain, the detailed analyses of relaxation oscillation (RO) generation still keep infrequent at present [18][19][20][21]. RO is a phenomenon that involves energy exchanges in the time domain between population inversion and cavity photons for optical oscillation [22].…”

Section: Introductionmentioning

confidence: 99%

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Theoretical study of relaxation oscillations in a free-running diode-pumped rubidium vapor laser

Cai¹,

Wang²,

Xue³

et al. 2014

Appl. Phys. B

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Diode-pumped alkali lasers (DPALs) have undergone rapid development to become one of the most promising candidates for use as high-power laser sources in recent years. Relaxation oscillation (RO) is a common phenomenon related to the dynamic process in the time domain. Sometimes, it is applied in parameter measurement, but sometimes it should be eliminated to ensure stable output. In this paper, we develop a kinetic model to study the RO features of a DPAL, which are different from those of a conventional solid-state laser. The results reveal that the cell temperature, buffer gas pressure, pumping power, cavity length, and reflectance of an output coupler affect the characteristics of ROs. Among these parameters, the cell temperature and the pumping power exert relatively strong influences on the waiting time of the first spike in the RO. Additionally, the cavity length cannot markedly affect the peak value of the laser intensity. These new analyses should prove useful for understanding the dynamic process of DPAL oscillation and for the future design of a steady high-powered DPAL.

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Section: Comparison Of Experimental and Simulative Resultssupporting

confidence: 74%

“…[21], the temporal waveforms were both theoretically evaluated and experimentally measured. By using the parameters given in Ref.…”

Section: Comparison Of Experimental and Simulative Resultsmentioning

confidence: 99%

“…By using the parameters given in Ref. [21], we simulate the laser pulse in time domain by assuming that the pump pulse has a Gaussian profile. The results are diagrammed in Fig.…”

Section: Comparison Of Experimental and Simulative Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Theoretical study of relaxation oscillations in a free-running diode-pumped rubidium vapor laser

Cai¹,

Wang²,

Xue³

et al. 2014

Appl. Phys. B

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“…The model, based on the equations developed by Zameroski et al 4 for DPAL systems, considers a steady-state CW device. In the following, the levels of importance for the Ar* laser are labeled as 1 ≡ 4s[3/2] 2 , 2 ≡ 4s[3/2] 1 , 3 ≡ 4p[1/2] 1 , and 4 ≡ 4p[5/2] 3 .…”

Section: Computational Modelingmentioning

confidence: 99%

Kinetics of an optically pumped metastable Ar laser

Han

Hager²,

Venus

et al. 2014

SPIE Proceedings

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In recent studies, an optically pumped Ar*/He laser has been demonstrated using the Ar 4p[1/2] 1 →4s[3/2] 2 transition at 912.55 nm. Time-resolved data for this system, recorded using CW laser excitation and pulsed discharge production of Ar* 4p[3/2] 2 , yielded laser output pulses that were of unexpectedly short duration. It was speculated that radiative relaxation from the upper laser level to the 4s[3/2] 1 state (607 cm -1 above 4s[3/2] 2 ) caused termination of the laser pulse. In the present study this hypothesis has been tested by observing the energy transfer kinetics of the 4s[3/2] 2 and 4s[3/2] 1 states in Ar/He gas mixtures. Following pulsed laser excitation out of 4s[3/2] 2 , population recovery was observed on a μs time scale. Energy transfer from 4s[3/2] 1 to 4s[3/2] 2 , induced by collisions with He, was characterized. The rate constant was found to be (1.0±0.5)x10 -13 cm 3 s -1 . These observations confirmed that radiative transfer to 4s[3/2] 1 was responsible for the short duration laser pulses. Modeling of a fully CW optically pumped Ar* laser shows that radiative transfer to 4s[3/2] 1 reduces the number density of the Ar* atoms involved in lasing, but is otherwise benign.

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A three-level model for alkali metal vapor lasers. Part II: broadband optical pumping

Hager

Perram

2013

Appl. Phys. B

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Experimental and numerical modeling studies of a pulsed rubidium optically pumped alkali metal vapor laser

Cited by 40 publications

References 26 publications

Theoretical study of relaxation oscillations in a free-running diode-pumped rubidium vapor laser

Theoretical study of relaxation oscillations in a free-running diode-pumped rubidium vapor laser

Kinetics of an optically pumped metastable Ar laser

A three-level model for alkali metal vapor lasers. Part II: broadband optical pumping

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