MW peak power KTP-OPO-based “eye-safe” transmitter

Kaskow, Mateusz; Gorajek, Lukasz; Żendzian, Waldemar; Jabczyński, Jan Karol

doi:10.1016/j.opelre.2018.04.005

Cited by 9 publications

(3 citation statements)

References 11 publications

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“…The head containing the active crystal and the pumping diodes were cooled with water. The same head was used in the study [20].…”

Section: Methodsmentioning

confidence: 99%

Metrology and Measurement Systems

Skórczakowski,

Żendzian,

Jankiewicz

2020

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Generation of two identical ns laser pulses spaced by a single µs time interval by means of sequential switching of the output mirror transmittance in a diode-pumped Nd:YAG laser is reported, to our knowledge, for the first time. The theoretical study of the process of transmission losses switching is developed. This analysis confirms the possibility of generation of two identical Q-switched laser pulses with 100% efficiency with respect to the referenced single pulse energy. The detailed characterization of the laser in free-running, single and double Q-switching regimes is presented. The laser can be applied in different branches of metrology as PIV, LIBS or holographic interferometry.

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“…The head containing the active crystal and the pumping diodes were cooled with water. The same head was used in the study [20].…”

Section: Methodsmentioning

confidence: 99%

Metrology and Measurement Systems

Skórczakowski,

Żendzian,

Jankiewicz

2020

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“…At present, the mainly nonlinear crystal materials for OPO include KTiAsO4 (KTA), ZnGeP2, KTiOPO4, and periodically poled LiNbO3 (PPLN) 1 – 4 The characteristics of PPLN, such as high nonlinear coefficient (d33=27 Pm/V), wide transparency range (0.4 to 5 μm), and stable properties, make it prominent among other OPO materials. The emergence of MgO doping technology has improved the damage resistance threshold of PPLN.…”

Section: Introductionmentioning

confidence: 99%

High conversion efficiency MgO: periodically poled LiNbO3 optical parametric oscillator using an unstable cavity

Jiang

Cheng

et al. 2022

Opt. Eng.

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A high conservation efficiency periodically poled LiNbO 3 (PPLN) optical parametric oscillator (OPO) based on the plano-convex unstable resonant cavity is demonstrated. The OPO is pumped by a Q-switch quasi-continuous-wave Nd∶YVO 4 with a wavelength of 1064 nm. The thermal effect of the nonlinear crystal and the mode distribution under the plano-convex cavity are analyzed. Through temperature tuning, the wavelength of the signal laser covers 1471.4 to 1510.4 nm. When the temperature is 30°C, the repetition rate is 30 kHz, and the pump power is 5.7 W. A PPLN-OPO based on a plano-convex cavity generates a 1471.4-nm laser with a maximum output power of 1.09 W and pulse duration of 17.14 ns. The highest pump-to-signal conversion efficiency is 28.71%. When the repetition rate is 40 kHz, the highest conversion efficiency of 29.29% is achieved at the pump power of 2.8 W.

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“…The idler waves of such OPOs in the mid-infrared range of 3 -4 μm also have great significance. At present, nanosecond laser pulses with MW-level peak power are available at both the eyesafe and mid-infrared wavelength ranges [16][17][18].…”

Section: Introductionmentioning

confidence: 99%

A Wavelength-Agile Eye-Safe Optical Parametric Oscillator Based on an X-Cut KTP Crystal

Zhong

Qiao

et al. 2021

IEEE Photonics J.

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A novel scheme to realize widely tunable optical parametric oscillator (OPO) based on an x-cut KTP crystal is demonstrated. The tuning range from 1572.5 nm to 1697 nm was enabled by a 1:1 imaging optical system with a variable deflection mirror to couple the 1064-nm laser pulses into the OPO cavity in the noncollinear phase-matching (PM) configuration. Benefitting from varying the pump direction rather than the cavity axis, the OPO cavity was unaffected so that the stability of the output signal energy and beam direction could be maintained, which greatly facilitates subsequent applications. The change of pump threshold, output energy, linewidth and temporal pulse shapes during wavelength tuning were also discussed.

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MW peak power KTP-OPO-based “eye-safe” transmitter

Cited by 9 publications

References 11 publications

Metrology and Measurement Systems

Metrology and Measurement Systems

High conversion efficiency MgO: periodically poled LiNbO3 optical parametric oscillator using an unstable cavity

A Wavelength-Agile Eye-Safe Optical Parametric Oscillator Based on an X-Cut KTP Crystal

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