Synchronously pumped OPO for picosecond pulse generation in the mid-infrared near 6.45 μm using AgGaS and CdSiP: A comparative study

N. Hendaoui, A. Peremans, P.G. Schunemann, K.T. Zawilski, V. Petrov

Research output: Contribution to journalArticle

Abstract

We compare the performance of two different mid-infrared nonlinear crystals, type I and type II AgGaS (AGS), and type I CdSiP (CSP), in a synchronously pumped optical parametric oscillator (SPOPO) pumped at 1064 nm. CSP showed a clear performance advantage at 6.5 μm idler wavelength in comparison to AGS. The oscillation threshold with CSP was three and five times lower compared to AGS type II and type I, respectively. The highest quantum conversion efficiency was obtained for CSP. It allowed us to reach 27.5 mW of idler average power, compared to 13 and 6 mW with type II and type I AGS, respectively. However, the tuning range was narrower with CSP than with AGS in both type I and type II configurations. The performance of the CSP SPOPO makes it suitable for generation of high power picosecond pulses at 6.45 μm for surgical applications.
Original languageEnglish
JournalLaser Physics
Volume23
Issue number8
DOIs
Publication statusPublished - 1 Aug 2013

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Optical parametric oscillators
picosecond pulses
Infrared radiation
parametric amplifiers
Conversion efficiency
Tuning
Wavelength
Crystals
tuning
oscillations
thresholds
configurations
wavelengths
crystals

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title = "Synchronously pumped OPO for picosecond pulse generation in the mid-infrared near 6.45 μm using AgGaS and CdSiP: A comparative study",
abstract = "We compare the performance of two different mid-infrared nonlinear crystals, type I and type II AgGaS (AGS), and type I CdSiP (CSP), in a synchronously pumped optical parametric oscillator (SPOPO) pumped at 1064 nm. CSP showed a clear performance advantage at 6.5 μm idler wavelength in comparison to AGS. The oscillation threshold with CSP was three and five times lower compared to AGS type II and type I, respectively. The highest quantum conversion efficiency was obtained for CSP. It allowed us to reach 27.5 mW of idler average power, compared to 13 and 6 mW with type II and type I AGS, respectively. However, the tuning range was narrower with CSP than with AGS in both type I and type II configurations. The performance of the CSP SPOPO makes it suitable for generation of high power picosecond pulses at 6.45 μm for surgical applications.",
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Synchronously pumped OPO for picosecond pulse generation in the mid-infrared near 6.45 μm using AgGaS and CdSiP : A comparative study. / Hendaoui, N.; Peremans, A.; Schunemann, P.G.; Zawilski, K.T.; Petrov, V.

In: Laser Physics, Vol. 23, No. 8, 01.08.2013.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Synchronously pumped OPO for picosecond pulse generation in the mid-infrared near 6.45 μm using AgGaS and CdSiP

T2 - A comparative study

AU - Hendaoui, N.

AU - Peremans, A.

AU - Schunemann, P.G.

AU - Zawilski, K.T.

AU - Petrov, V.

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AB - We compare the performance of two different mid-infrared nonlinear crystals, type I and type II AgGaS (AGS), and type I CdSiP (CSP), in a synchronously pumped optical parametric oscillator (SPOPO) pumped at 1064 nm. CSP showed a clear performance advantage at 6.5 μm idler wavelength in comparison to AGS. The oscillation threshold with CSP was three and five times lower compared to AGS type II and type I, respectively. The highest quantum conversion efficiency was obtained for CSP. It allowed us to reach 27.5 mW of idler average power, compared to 13 and 6 mW with type II and type I AGS, respectively. However, the tuning range was narrower with CSP than with AGS in both type I and type II configurations. The performance of the CSP SPOPO makes it suitable for generation of high power picosecond pulses at 6.45 μm for surgical applications.

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