Transversely diode-pumped passively<i>Q</i>-switched erbium glass laser emitter

Bykov, Viatcheslav; Izyneev, A. A.; Sadovoi, A G; Sadovskii, Pavel I; Sorokina, O A

doi:10.1070/qe2008v038n03abeh013588

Cited by 4 publications

(3 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Pulses of duration 9 nsec with energy 1.2 mJ were obtained with longitudinal pulse pumping using a PS based on Co 2+ :LaMgAl 11 O 19 crystal [235]. Pulses with diffraction divergence of duration 50 nsec with energy 5 mJ were obtained with transverse pumping of semiconducting laser rods [236]. [118,227], and Co 2+ :La x Sr 1-x Mg x-y Co y Al 12-x O 19 [240].…”

Section: Ermentioning

confidence: 99%

See 1 more Smart Citation

Saturable absorbers based on tetrahedrally coordinated transition-metal ions in crystals (Review)

Malyarevich

Yumashev

2009

J Appl Spectrosc

View full text Add to dashboard Cite

Published data on spectroscopic characteristics of saturable absorbers based on crystals doped with tetrahedrally coordinated transition-metal ions (Cr 2+ , Cr 4+ , Cr 5+ , V 3+ , Cr 2+ , Fe 2+ ) in addition to their use as passive Q-switches for solid-state lasers emitting in the visible and near-infrared regions are reviewed.Introduction. The use of saturable absorbers (SA) as passive Q-switches (PS) in solid-state lasers is an effective method for generating nanosecond and subnanosecond light pulses. This method differs favorably from active control of laser cavity gain by the lack of mechanical perturbations of the optical devices, additional sources of power supply, and external electrical control circuits. This simplifies the construction and operation of the laser and reduces its cost. Compact solid-state mini-lasers and ultra-small lasers (so-called microchip lasers) can be fabricated if PS are used.A SA is an optical material for which the transmission increases with increasing power density of the incident radiation. The SA should satisfy several requirements in order to be used as a PS. First of all this applies to SA characteristics at the laser operating wavelength such as absorption saturation energy density, coefficient of residual absorption in the fully bleached state, bleaching rise and fall time, and optical destruction threshold. The requirements for their absolute values depend on the spectroscopic properties of the lasing medium (LM) and the laser cavity parameters.In most instances with certain exceptions, SA based on tetrahedrally coordinated (TC) transition-metal ions of the iron group have bleaching relaxation times that are longer than the generation time of the laser pulses obtained using them. Such SA are usually called slowly relaxing. Relaxation processes leading to a restoration of their initial absorption can be ignored in analyzing their operation in a laser. In the simplest instance (if a four-level diagram is used for the spectroscopic model of the SA), the criterion for SA functioning as a PS is written [1-8]:

show abstract

Section: Ermentioning

confidence: 99%

“…Semiconducting lasers were used to pump glass Er lasers with both longitudinal propagation of pumping radiation along the cavity axis [235] and in the transverse direction [236]. Pulses of duration 9 nsec with energy 1.2 mJ were obtained with longitudinal pulse pumping using a PS based on Co 2+ :LaMgAl 11 O 19 crystal [235].…”

Section: Ermentioning

confidence: 99%

Saturable absorbers based on tetrahedrally coordinated transition-metal ions in crystals (Review)

Malyarevich

Yumashev

2009

J Appl Spectrosc

View full text Add to dashboard Cite

show abstract

“…[1][2][3][4] Depending on the problems to be solved and the set of required characteristics, these use both traditional, less costly lamp pumping, usually for devices with a pulserepetition rate of up to 1 Hz, and laser-diode pumping, with a pulse-repetition rate up to tens of hertz. The requirements on the quality of the generated pulse remain high in all cases.…”

Section: Introductionmentioning

confidence: 99%

Erbium active elements with a slit stop

et al. 2014

View full text Add to dashboard Cite

This paper proposes a method for improving the quality of the pulse generated by an erbium laser by means of a slit stop formed in the active element. It presents results obtained for a radiator with diode pumping, operating in a wide range of pulse-repetition rates from single pulses to 10 Hz. EXPERIMENTAn analysis of the pump-energy distribution inside the AE showed that, both in the case of lamp pumping and in the case of laser-diode pumping, the pumped zone has the 182

show abstract