Single-frequency operation in solid-state laser materials with short absorption depths

Kintz, Gregory J.; Baer, Thomas M.

doi:10.1109/3.102621

Cited by 116 publications

(25 citation statements)

References 7 publications

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“…If the results are used in the theories presented in Ref. 12), we find that single'mode operation S. HELMFRID et al 203…”

Section: Influence Of the Pump Spectrummentioning

confidence: 91%

“…The divergence 0L the pump beam is taken into account through the zdependence of the beam width, w(z)=wofCl~V (12) where zo can be evaluated from the divergence angle of the where w~ is an arbitrary normalization constant and I is the absorption depth. Since the mode radius is not fixed, as it has been in the previous calculations, the threshold in the ideal case, i.e.…”

Section: Broad-area Pump Lasermentioning

confidence: 99%

See 1 more Smart Citation

Influence of Spot Size and Spectral Width of the Pump Radiation on the Efficiency of Laser-Diode-Pumped Solid-State Lasers

Helmfrid

Andou

Nakatsuka

et al. 1995

OPT REV

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on When mini-solid-state lasers are end-pumped by diode lasers, it is important to have a good overlap between the pump beam and the oscillating mode and to have a pump spectrum that is narrow compared to the width of the absorption peak in the gain medium. We have theoretically studied the influence of the beam radius and the spectral width of the pump on the performance of diode-pumped devices. From the rate equations, the lasing threshold and the circulating intensity is evaluated numerically and the results can be used as a guideline in the design of intracavity doubling lasers. It is also shown that single-mode operation is more difficult when the pump spectrum becomes to wide.

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“…If the results are used in the theories presented in Ref. 12), we find that single'mode operation S. HELMFRID et al 203…”

Section: Influence Of the Pump Spectrummentioning

confidence: 91%

Section: Broad-area Pump Lasermentioning

confidence: 99%

Influence of Spot Size and Spectral Width of the Pump Radiation on the Efficiency of Laser-Diode-Pumped Solid-State Lasers

Helmfrid

Andou

Nakatsuka

et al. 1995

OPT REV

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“…Owing to their great thickness, a single frequency operation is difficult. Also supplementary optical components are required to concentrate the laser light dispersed from the LD [4], hence they are not suitable for the LD pumped microchip laser. In the case of Nd:YVO4, it is difficult to obtain high-quality crystal of uniform composition because V205 evaporates easily from the crystal [5].…”

Section: ~Troductionmentioning

confidence: 99%

Nd: Bi4Ge3O12 crystal growth by czochralski method

Bae¹,

Whang

1999

Metals and Materials

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Nd-doped Bi4Ge30,2 (Nd:BGO) crystals were successfully grown in the auto-diameter control system equipped with a frequency weighing sensor with the Czochralski method. The Nd 3 § ion doping level was varied from 0.25 to 2.5 at.%. The crystals were transparent and of light purple color, with a typic3.al size of about 20 mm in diameter and 50 mm in length. The effective distribution coefficient (k~) of Nd ion was about 0.957 irrespective of concentration, and the Nd 3+ ions were distributed homogeneously throughout the crystal. The doping concentration (Pb of active ion in Nd:BGO crystal was 2.54• lons/cm, which is higher than that in the Nd:YAG crystal. Therefore, the Nd:BGO crystal was judged to be more suitable for the laser diode pumping microchip laser material where size reduction was desirable.

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“…The electro-optic Qswitch is composed of a pair of crossed axes RTP crystals (3 × 3 × 10 mm from the company Cristal Laser), a layout which is quite insensitive to thermal variations. For single mode operation, the cavity is injection seeded by a small home made single axial mode Nd:YVO 4 cw laser [6,7]. The beam is introduced through the coupling polarizer.…”

Section: Experimental Set-upmentioning

confidence: 99%

Single mode injection seeded Nd:YAG oscillator with an adjustable pulse length between 20 and 50 ns

Cabaret

Drag

2006

Eur. Phys. J. Appl. Phys.

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Abstract. Highly stable single axial mode operation is obtained in a pulsed injection seeded oscillator with an adjustable pulse length from 20 ns to more than 50 ns, at a constant output energy. The adjustment principle is described experimentally and analysed theoretically. The peak to peak time jitter added to a slow time drift is of the order of 1 nanosecond for a 20 nanoseconds pulse length. PACS

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Single-frequency operation in solid-state laser materials with short absorption depths

Cited by 116 publications

References 7 publications

Influence of Spot Size and Spectral Width of the Pump Radiation on the Efficiency of Laser-Diode-Pumped Solid-State Lasers

Influence of Spot Size and Spectral Width of the Pump Radiation on the Efficiency of Laser-Diode-Pumped Solid-State Lasers

Nd: Bi4Ge3O12 crystal growth by czochralski method

Single mode injection seeded Nd:YAG oscillator with an adjustable pulse length between 20 and 50 ns

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