Comparison of Nd 1.06 and 1.33 µm operation in various hosts

Barnes, Norman P.; Gettemy, Donald J.; Esterowitz, L.; Allen, R.

doi:10.1109/jqe.1987.1073528

Cited by 47 publications

(6 citation statements)

References 29 publications

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“…A comparison of 4 Nd laser materials under the same flash lamp pumping was performed for the 1.06 and 1.32 μm transitions [25]. Nd:YAG had a threshold of 5.3 J and slope efficiency of 0.020 when at 1.064 μm as well as a threshold of 5.0 J and slope efficiency of 0.012 when at 1.338 μm.…”

Section: Examplesmentioning

confidence: 99%

Solid-State Lasers From an Efficiency Perspective

Barnes

2007

IEEE J. Select. Topics Quantum Electron.

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Solid state lasers have remained a vibrant area of research because several major innovations expanded their capability. Major innovations are presented with emphasis focused on the laser efficiency. A product of efficiencies approach is developed and applied to describe laser performance. Efficiency factors are presented in closed form where practical and energy transfer effects are included where needed. In turn, efficiency factors are used to estimate threshold and slope efficiency, allowing a facile estimate of performance. Spectroscopic, thermal, and mechanical data are provided for common solid state laser materials.Index terms: Solid state lasers, laser efficiency, diode pumped solid state lasers, laser modeling Introduction:Solid state lasers remain a vibrant area because of several innovations in technology and because they have capabilities available with no other type of laser. These innovations have opened up fruitful new areas for solid state laser research. Directly below, 4 major innovations appear with other innovations scattered throughout the text. Some important solid state laser capabilities result from their ability to store energy. Efficient energy storage for millisecond time intervals is unique to solid state lasers. Energy storage permits solid state lasers to serve as optical integrators. Low brightness optical pumps can be optically integrated and laser energy delivered in a high peak power and high brightness laser beam. This capability of solid state lasers is a prime reason for their utility.

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Section: Examplesmentioning

confidence: 99%

Solid-State Lasers From an Efficiency Perspective

Barnes

2007

IEEE J. Select. Topics Quantum Electron.

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“…Lasing characteristics of Cr,Ce,Nd:GGG rod (6.3x90 mm) have been investigated in linear configuration resonator composed of plane mirrors with reflection coefficients Ri=99% and R2 =86% at the 1.423 m. For the 1.062 and 1.331 ,um competitive lines the product of reflectivities R1xR2 was equal to 0.009 and 0.14 respectively. Due to comparatively high mirrors reflectivity at the competitive laser lines the spectral composition of output laser radiation was constantly monitored by using monochromator, Ge photodiode and oscilloscope.…”

Section: Lasing Characteristics Of Crcend:ggg Crystals At 1423 4ummentioning

confidence: 99%

<title>Efficient laser operation of Cr,Nd:GGG crystals at 1.331 and 1.423 um</title>

et al. 1993

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Spectroscopic and laser properties of Cr,Nd:GGG and Nd:YAG crystals in the 1.3-1.45 m wavelength range have been compared. Flashpumped Cr,Ce,Nd:GGG laser operating at 1.331 1um with total efficiency up to 3% and average output power of 65 W has been developed. For the first time to our knowledge oscillation at 1.4237 m wavelength in Cr,Nd:GGG crystal have been obtained. Output energy of 2.3 J at this eyesafe wavelength with total efficiency of 1.23% have been obtained for flashpumped Cr,Ce,Nd:GGG laser in free-running mode. Average output power of 21 .6 W at 13 Hz repetition rate have been achieved. Cr,Nd:GGG crystals advantages for 1 .4 ,am lasing compared to Nd:YAG crystals are discussed.

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“…Therefore, previously, favorable pulsed laser gains were focused on Yb 3+ -doped crystalline materials, including crystals and ceramics [7]. However, the Nd 3+ -doped materials have advantages in peculiar four-level systems, which means that these lasers have a much lower laser threshold compared with those of Yb 3+ -doped materials [8,9,10]. Thus, it is interesting to investigate the host materials which can broaden the spectra of Nd 3+ ions.…”

Section: Introductionmentioning

confidence: 99%

Broadband Spectra and Efficient Laser Performance of a Disordered Nd:Sr0.7La0.3Mg0.3Al11.7O19 Crystal

Zhang

Pan

et al. 2018

Materials

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Here, we demonstrate the broadband spectra and efficient laser performance of a disordered Nd:Sr0.7La0.3Mg0.3Al11.7O19 (Nd:ASL) crystal. The polarized absorption and emission spectra were characterized and calculated with the Judd–Ofelt (J–O) theory, and the results show that this crystal has relatively large σ polarized absorption and emission cross sections, with peak emission cross sections of 4.5 × 10−20 cm2 at 1051 nm and an emission width of 30 nm at 1074 nm, which are favorable for pulsed lasers. The laser-diode-pumped continuous-wave (CW) and passively Q-switched lasers at 1051 nm were realized for the first time to our best knowledge. For CW laser, the maximum output power was 1.95 W with the slope efficiency of 42.6%, and for the passive Q-switching, the maximum output power was 0.73 W with the pulse width of 7.96 ns and peak power of 5.64 W. The results demonstrate that Nd:ASL crystal is a potential candidate for lasers, especially high-peak pulsed lasers such as Q-switching and mode-locking.

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Comparison of Nd 1.06 and 1.33 µm operation in various hosts

Cited by 47 publications

References 29 publications

Solid-State Lasers From an Efficiency Perspective

Solid-State Lasers From an Efficiency Perspective

<title>Efficient laser operation of Cr,Nd:GGG crystals at 1.331 and 1.423 um</title>

Broadband Spectra and Efficient Laser Performance of a Disordered Nd:Sr0.7La0.3Mg0.3Al11.7O19 Crystal

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