High energy intracavity pumped eye-safe BaWO₄ Raman laser

Ondřej Kitzler; Helena Jelínková; Jan Šulc; Lucia Koubíková; Michal Němec; Karel Nejezchleb; Václav Škoda

doi:10.1117/12.2002305

High energy intracavity pumped eye-safe BaWO₄ Raman laser

Ondřej Kitzler, Helena Jelínková, Jan Šulc, Lucia Koubíková, Michal Němec, Karel Nejezchleb, Václav Škoda

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

3 Citations (Scopus)

Abstract

The goal of our research is a compact Raman laser emitting short pulses with high energy and peak power in "eye-safe" region around wavelength 1.5 μm. We utilize intracavity conversion of giant pulses at wavelength 1.34 μm in a BaWO₄ Raman crystal (18 mm long, AR coated). Required high energy and peak power was reached using a flash-lamp pumped Nd:YAG laser (rod 100 mm long, diameter 4 mm), Q-switched by V:YAG solid-state saturable absorber (initial transmission 37% @ 1.34 μm). The L-shaped oscillator for 1.34 μm radiation consisted of a concave mirror (r = 0.5 m, HR @ 1.3 μm, HT @ 1.06 μm), flat polarizing intracavity mirror, and output coupler (r = 1 m, HR @ 1.3 μm, R = 39 % @ 1.5 μm). The polarizing mirror ensured stable linearly polarized laser emission and prevented parasitic oscillations at 1.06 μm. The Raman laser oscillator was formed by the output coupler and another intracavity mirror (r = 0.5 m, HR @ 1.5 μm, HT @ 1.3 μm), inserted between BaWO₄ and the polarizing mirror. For pumping energy of 28.2 J stable vertically polarized generation of the 1st Stokes radiation at 1528 nm was reached. In multimode operation the output energy was 20 mJ in 2.25 ns pulses. Single mode operation was possible by inserting a 1.5 mm aperture between Nd:YAG and V:YAG crystal. The output energy dropped to 9.7 mJ (even for higher pump power of 30.7 W) and output pulses were shortened to 1.87 ns.

Original language	English
Title of host publication	Solid state lasers XXII : technology and devices
Subtitle of host publication	3-5 February 2013, San Francisco, California, United States
Editors	W. Andrew Clarkson, Ramesh K. Shori
Place of Publication	Bellingham, Washington
Publisher	SPIE
Pages	1-5
Number of pages	5
ISBN (Print)	9780819493682
DOIs	https://doi.org/10.1117/12.2002305
Publication status	Published - 2013
Externally published	Yes
Event	Solid State Lasers XXII: Technology and Devices - San Francisco, CA, United States Duration: 3 Feb 2013 → 5 Feb 2013

Publication series

Name	Proceedings of SPIE
Publisher	SPIE
Volume	8599
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Other

Other	Solid State Lasers XXII: Technology and Devices
Country/Territory	United States
City	San Francisco, CA
Period	3/02/13 → 5/02/13

Keywords

eye safe wavelength
Nd:YAG Q-switched laser
Stimulated Raman Scattering
V:YAG saturable absorber

Access to Document

10.1117/12.2002305

Cite this

Kitzler, O., Jelínková, H., Šulc, J., Koubíková, L., Němec, M., Nejezchleb, K., & Škoda, V. (2013). High energy intracavity pumped eye-safe BaWO₄ Raman laser. In W. A. Clarkson, & R. K. Shori (Eds.), Solid state lasers XXII : technology and devices: 3-5 February 2013, San Francisco, California, United States (pp. 1-5). [85991W] (Proceedings of SPIE; Vol. 8599). SPIE. https://doi.org/10.1117/12.2002305

@inproceedings{cc7406f8048149ce836b4b98a761d1cc,

title = "High energy intracavity pumped eye-safe BaWO₄ Raman laser",

abstract = "The goal of our research is a compact Raman laser emitting short pulses with high energy and peak power in {"}eye-safe{"} region around wavelength 1.5 μm. We utilize intracavity conversion of giant pulses at wavelength 1.34 μm in a BaWO4 Raman crystal (18 mm long, AR coated). Required high energy and peak power was reached using a flash-lamp pumped Nd:YAG laser (rod 100 mm long, diameter 4 mm), Q-switched by V:YAG solid-state saturable absorber (initial transmission 37% @ 1.34 μm). The L-shaped oscillator for 1.34 μm radiation consisted of a concave mirror (r = 0.5 m, HR @ 1.3 μm, HT @ 1.06 μm), flat polarizing intracavity mirror, and output coupler (r = 1 m, HR @ 1.3 μm, R = 39 % @ 1.5 μm). The polarizing mirror ensured stable linearly polarized laser emission and prevented parasitic oscillations at 1.06 μm. The Raman laser oscillator was formed by the output coupler and another intracavity mirror (r = 0.5 m, HR @ 1.5 μm, HT @ 1.3 μm), inserted between BaWO4 and the polarizing mirror. For pumping energy of 28.2 J stable vertically polarized generation of the 1st Stokes radiation at 1528 nm was reached. In multimode operation the output energy was 20 mJ in 2.25 ns pulses. Single mode operation was possible by inserting a 1.5 mm aperture between Nd:YAG and V:YAG crystal. The output energy dropped to 9.7 mJ (even for higher pump power of 30.7 W) and output pulses were shortened to 1.87 ns. ",

keywords = "eye safe wavelength, Nd:YAG Q-switched laser, Stimulated Raman Scattering, V:YAG saturable absorber",

author = "Ond{\v r}ej Kitzler and Helena Jel{\'i}nkov{\'a} and Jan {\v S}ulc and Lucia Koub{\'i}kov{\'a} and Michal N{\v e}mec and Karel Nejezchleb and V{\'a}clav {\v S}koda",

year = "2013",

doi = "10.1117/12.2002305",

language = "English",

isbn = "9780819493682",

series = "Proceedings of SPIE",

publisher = "SPIE",

pages = "1--5",

editor = "Clarkson, {W. Andrew} and Shori, {Ramesh K.}",

booktitle = "Solid state lasers XXII : technology and devices",

address = "United States",

note = "Solid State Lasers XXII: Technology and Devices ; Conference date: 03-02-2013 Through 05-02-2013",

}

Kitzler, O, Jelínková, H, Šulc, J, Koubíková, L, Němec, M, Nejezchleb, K & Škoda, V 2013, High energy intracavity pumped eye-safe BaWO₄ Raman laser. in WA Clarkson & RK Shori (eds), Solid state lasers XXII : technology and devices: 3-5 February 2013, San Francisco, California, United States., 85991W, Proceedings of SPIE, vol. 8599, SPIE, Bellingham, Washington, pp. 1-5, Solid State Lasers XXII: Technology and Devices, San Francisco, CA, United States, 3/02/13. https://doi.org/10.1117/12.2002305

High energy intracavity pumped eye-safe BaWO₄ Raman laser. / Kitzler, Ondřej; Jelínková, Helena; Šulc, Jan et al.
Solid state lasers XXII : technology and devices: 3-5 February 2013, San Francisco, California, United States. ed. / W. Andrew Clarkson; Ramesh K. Shori. Bellingham, Washington: SPIE, 2013. p. 1-5 85991W (Proceedings of SPIE; Vol. 8599).

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › peer-review

TY - GEN

T1 - High energy intracavity pumped eye-safe BaWO₄ Raman laser

AU - Kitzler, Ondřej

AU - Jelínková, Helena

AU - Šulc, Jan

AU - Koubíková, Lucia

AU - Němec, Michal

AU - Nejezchleb, Karel

AU - Škoda, Václav

PY - 2013

Y1 - 2013

N2 - The goal of our research is a compact Raman laser emitting short pulses with high energy and peak power in "eye-safe" region around wavelength 1.5 μm. We utilize intracavity conversion of giant pulses at wavelength 1.34 μm in a BaWO4 Raman crystal (18 mm long, AR coated). Required high energy and peak power was reached using a flash-lamp pumped Nd:YAG laser (rod 100 mm long, diameter 4 mm), Q-switched by V:YAG solid-state saturable absorber (initial transmission 37% @ 1.34 μm). The L-shaped oscillator for 1.34 μm radiation consisted of a concave mirror (r = 0.5 m, HR @ 1.3 μm, HT @ 1.06 μm), flat polarizing intracavity mirror, and output coupler (r = 1 m, HR @ 1.3 μm, R = 39 % @ 1.5 μm). The polarizing mirror ensured stable linearly polarized laser emission and prevented parasitic oscillations at 1.06 μm. The Raman laser oscillator was formed by the output coupler and another intracavity mirror (r = 0.5 m, HR @ 1.5 μm, HT @ 1.3 μm), inserted between BaWO4 and the polarizing mirror. For pumping energy of 28.2 J stable vertically polarized generation of the 1st Stokes radiation at 1528 nm was reached. In multimode operation the output energy was 20 mJ in 2.25 ns pulses. Single mode operation was possible by inserting a 1.5 mm aperture between Nd:YAG and V:YAG crystal. The output energy dropped to 9.7 mJ (even for higher pump power of 30.7 W) and output pulses were shortened to 1.87 ns.

AB - The goal of our research is a compact Raman laser emitting short pulses with high energy and peak power in "eye-safe" region around wavelength 1.5 μm. We utilize intracavity conversion of giant pulses at wavelength 1.34 μm in a BaWO4 Raman crystal (18 mm long, AR coated). Required high energy and peak power was reached using a flash-lamp pumped Nd:YAG laser (rod 100 mm long, diameter 4 mm), Q-switched by V:YAG solid-state saturable absorber (initial transmission 37% @ 1.34 μm). The L-shaped oscillator for 1.34 μm radiation consisted of a concave mirror (r = 0.5 m, HR @ 1.3 μm, HT @ 1.06 μm), flat polarizing intracavity mirror, and output coupler (r = 1 m, HR @ 1.3 μm, R = 39 % @ 1.5 μm). The polarizing mirror ensured stable linearly polarized laser emission and prevented parasitic oscillations at 1.06 μm. The Raman laser oscillator was formed by the output coupler and another intracavity mirror (r = 0.5 m, HR @ 1.5 μm, HT @ 1.3 μm), inserted between BaWO4 and the polarizing mirror. For pumping energy of 28.2 J stable vertically polarized generation of the 1st Stokes radiation at 1528 nm was reached. In multimode operation the output energy was 20 mJ in 2.25 ns pulses. Single mode operation was possible by inserting a 1.5 mm aperture between Nd:YAG and V:YAG crystal. The output energy dropped to 9.7 mJ (even for higher pump power of 30.7 W) and output pulses were shortened to 1.87 ns.

KW - eye safe wavelength

KW - Nd:YAG Q-switched laser

KW - Stimulated Raman Scattering

KW - V:YAG saturable absorber

UR - http://www.scopus.com/inward/record.url?scp=84878209485&partnerID=8YFLogxK

U2 - 10.1117/12.2002305

DO - 10.1117/12.2002305

M3 - Conference proceeding contribution

AN - SCOPUS:84878209485

SN - 9780819493682

T3 - Proceedings of SPIE

SP - 1

EP - 5

BT - Solid state lasers XXII : technology and devices

A2 - Clarkson, W. Andrew

A2 - Shori, Ramesh K.

PB - SPIE

CY - Bellingham, Washington

T2 - Solid State Lasers XXII: Technology and Devices

Y2 - 3 February 2013 through 5 February 2013

ER -

Kitzler O, Jelínková H, Šulc J, Koubíková L, Němec M, Nejezchleb K et al. High energy intracavity pumped eye-safe BaWO₄ Raman laser. In Clarkson WA, Shori RK, editors, Solid state lasers XXII : technology and devices: 3-5 February 2013, San Francisco, California, United States. Bellingham, Washington: SPIE. 2013. p. 1-5. 85991W. (Proceedings of SPIE). doi: 10.1117/12.2002305

High energy intracavity pumped eye-safe BaWO₄ Raman laser

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