Effect of addition of hydrogen to neon buffer gas of copper bromide vapor laser on its spectral and temporal characteristics

Tiwari, G. N.; Shukla, P.K.; Mishra, Rohit; Shrivastava, V.; Khare, R.; Nakhe, S. V.

doi:10.1016/j.optcom.2014.10.048

Cited by 18 publications

(8 citation statements)

References 8 publications

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“…Therefore, a halide laser has the same attractive applications of CVL in different areas of science and technology. The lower operating temperature of the active medium of CBVL is valuable over CVL such as considering the limits of material operation, simpler construction of tube, reduction of start-up time for laser oscillation from a cold start, water-cooled operation, etc [10]. The other advantages of CBVL can be identified as higher pulse repetition frequency, higher wall-plug efficiency and a pseudo-Gaussian beam intensity profile.…”

Section: Introductionmentioning

confidence: 99%

Various buffer gas effects on amplifying parameters of a copper bromide laser

Lima¹

2020

Laser Phys.

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A pair of Copper Bromide lasers in an oscillator-amplifier configuration was used to study the dependence of the small-signal gain (g 0 ), saturation energy intensity (E s ) and output power on various types of Buffer gases in CuBr vapor lasers. The amplifying parameters and output power of the system were measured at different buffer gas pressure and the optimum pressure of 11, 17 and 23 torr were obtained for He, He-Ne and Ne, respectively. The values of these parameters were different for various gases used in the gain medium. It was shown that the use of He has more efficient and output power than that of Ne or their mixed ones in CuBr lasers. The type of buffer gas used in the gain medium can affect the microscopic parameters, which in turn affects the operation and output power.

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Section: Introductionmentioning

confidence: 99%

Various buffer gas effects on amplifying parameters of a copper bromide laser

Lima¹

2020

Laser Phys.

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“…The operational temperature of these metal vapor lasers is relatively high, which means that they can be operated in the range of 1500-1800 °C [3,4]. To reduce the operational temperature, which has many advantages over CVL use [5], the lasers have been operated while utilizing the vapor of different compounds of copper [6,7]. The operating temper ature depends on the vapor pressure of the compounds and is about 500 °C for copper bromide lasers (CBLs), which is much lower than for CVLs.…”

Section: Introductionmentioning

confidence: 99%

The behavior of gain and saturation characteristics versus temperature in a copper bromide laser

et al. 2017

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A pair of copper bromide lasers in an oscillator-amplifier configuration was used to investigate the temperature dependence of the smallsignal gain, saturation intensity, and output power of the laser. The observations were explained in terms of the electron temperature and energy levels of transition. An optimum electrical input power of 1.6 kW and a corresponding operational temperature of 510 °C were determined for the maximum values of these parameters. The balance between the microscopic parameters, such as stimulated emission crosssection, laser upperlevel lifetime, and population inversion, which determine the behavior of the amplifying parameters and laser output power with respect to the operational temperature, has been investigated. We used the steadystate rate equation from the Hargrove model to determine the amplifying parameters, instead of the Frantz-Nodvik formula. The power extracted from the amplifier exceeds that achieved with the same device as the oscillator by more than 60%.

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“…The next best buffer gas to use is He, which gives longer and lower discharge current pulses [28]. Weak oscillations are also obtained with N 2 [37], H 2 [38], and CO 2 buffer gases [39]. Adding of H 2 to the Ne buffer gas in CVL greatly enhances its performance [38] [40] [41].…”

Section: Introductionmentioning

confidence: 99%

“…Weak oscillations are also obtained with N 2 [37], H 2 [38], and CO 2 buffer gases [39]. Adding of H 2 to the Ne buffer gas in CVL greatly enhances its performance [38] [40] [41]. In our previous work, a CVL and a gold vapor laser were operated using air as a buffer gas to compare output power and the stability of the laser by the air and other gases [42].…”

Section: Introductionmentioning

confidence: 99%