A CrTmHo:YAG laser pumped ZnGeP2 optical parametric oscillator for mid-infrared spectroscopy

Albert F. Nieuwenhuis; Petrus J.M. van der Slot; Christopher James Lee; I.D. Lindsay; P. Gross; Klaus J. Boller

doi:10.1117/12.763134

A CrTmHo:YAG laser pumped ZnGeP2 optical parametric oscillator for mid-infrared spectroscopy

Albert F. Nieuwenhuis, Petrus J.M. van der Slot, Christopher James Lee, I.D. Lindsay, P. Gross, Klaus J. Boller

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

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Abstract

We report a singly resonant optical parametric oscillator (SRO) based on a ZnGeP2 crystal directly-pumped by a lamp-pumped Q-switched CrTmHo:YAG laser. The IR wavelength was tuneable from 4.7 μm to 7.8 μm via crystal angle tuning. A maximum optical to optical efficiency of 56% was obtained from pump (2.09 μm) to total IR at a pump energy of 6.5 mJ. The corresponding idler energy was 1.45 mJ. The SRO was measured to have a slope efficiency of 64% and a threshold of 1 mJ. The spatial beam quality of the idler, characterized by the M2 parameter, was 1.38 when the SRO was pumped at 2.5 times threshold. These results show that ZnGeP2 OPOs directly pumped by a CrTmHo:YAG laser can be operated efficiently, while maintaining good IR beam quality. The wide tuning range and a high pulse energy makes this SRO particularly suitable for spectroscopic applications, and, tests in the field medical application, e.g., for cutting of soft tissue during surgery or corneal corrections.

Original language	English
Title of host publication	Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VII
Editors	Peter E. Powers
Place of Publication	San Jose, CA, USA
Publisher	SPIE
Pages	68751G-1-68751G-9
ISBN (Print)	9780819470508
DOIs	https://doi.org/10.1117/12.763134
Publication status	Published - 20 Jan 2008
Event	Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VII - San Jose, CA, USA Duration: 21 Jan 2008 → 24 Jan 2008

Publication series

Name	68751G
Publisher	SPIE
Volume	6875
ISSN (Print)	0277-786X

Conference

Conference	Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VII
Period	21/01/08 → 24/01/08
Other	21-24 January 2008

Keywords

METIS-247335
IR-96128

Access to Document

10.1117/12.763134

Cite this

Nieuwenhuis, A. F., van der Slot, P. J. M., Lee, C. J., Lindsay, I. D., Gross, P., & Boller, K. J. (2008). A CrTmHo:YAG laser pumped ZnGeP2 optical parametric oscillator for mid-infrared spectroscopy. In P. E. Powers (Ed.), Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VII (pp. 68751G-1-68751G-9). (68751G; Vol. 6875). SPIE. https://doi.org/10.1117/12.763134

@inproceedings{aaef99484dff40da8ec523bcb51a3f0c,

title = "A CrTmHo:YAG laser pumped ZnGeP2 optical parametric oscillator for mid-infrared spectroscopy",

abstract = "We report a singly resonant optical parametric oscillator (SRO) based on a ZnGeP2 crystal directly-pumped by a lamp-pumped Q-switched CrTmHo:YAG laser. The IR wavelength was tuneable from 4.7 μm to 7.8 μm via crystal angle tuning. A maximum optical to optical efficiency of 56% was obtained from pump (2.09 μm) to total IR at a pump energy of 6.5 mJ. The corresponding idler energy was 1.45 mJ. The SRO was measured to have a slope efficiency of 64% and a threshold of 1 mJ. The spatial beam quality of the idler, characterized by the M2 parameter, was 1.38 when the SRO was pumped at 2.5 times threshold. These results show that ZnGeP2 OPOs directly pumped by a CrTmHo:YAG laser can be operated efficiently, while maintaining good IR beam quality. The wide tuning range and a high pulse energy makes this SRO particularly suitable for spectroscopic applications, and, tests in the field medical application, e.g., for cutting of soft tissue during surgery or corneal corrections.",

keywords = "METIS-247335, IR-96128",

author = "Nieuwenhuis, {Albert F.} and {van der Slot}, {Petrus J.M.} and Lee, {Christopher James} and I.D. Lindsay and P. Gross and Boller, {Klaus J.}",

year = "2008",

month = jan,

day = "20",

doi = "10.1117/12.763134",

language = "English",

isbn = "9780819470508",

series = "68751G",

publisher = "SPIE",

pages = "68751G--1--68751G--9",

editor = "Powers, {Peter E.}",

booktitle = "Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VII",

address = "United States",

note = "Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VII ; Conference date: 21-01-2008 Through 24-01-2008",

}

Nieuwenhuis, AF , van der Slot, PJM, Lee, CJ, Lindsay, ID, Gross, P & Boller, KJ 2008, A CrTmHo:YAG laser pumped ZnGeP2 optical parametric oscillator for mid-infrared spectroscopy. in PE Powers (ed.), Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VII. 68751G, vol. 6875, SPIE, San Jose, CA, USA, pp. 68751G-1-68751G-9, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VII, 21/01/08. https://doi.org/10.1117/12.763134

A CrTmHo:YAG laser pumped ZnGeP2 optical parametric oscillator for mid-infrared spectroscopy. / Nieuwenhuis, Albert F.; van der Slot, Petrus J.M.; Lee, Christopher James et al.
Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VII. ed. / Peter E. Powers. San Jose, CA, USA: SPIE, 2008. p. 68751G-1-68751G-9 (68751G; Vol. 6875).

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

TY - GEN

T1 - A CrTmHo:YAG laser pumped ZnGeP2 optical parametric oscillator for mid-infrared spectroscopy

AU - Nieuwenhuis, Albert F.

AU - van der Slot, Petrus J.M.

AU - Lee, Christopher James

AU - Lindsay, I.D.

AU - Gross, P.

AU - Boller, Klaus J.

PY - 2008/1/20

Y1 - 2008/1/20

N2 - We report a singly resonant optical parametric oscillator (SRO) based on a ZnGeP2 crystal directly-pumped by a lamp-pumped Q-switched CrTmHo:YAG laser. The IR wavelength was tuneable from 4.7 μm to 7.8 μm via crystal angle tuning. A maximum optical to optical efficiency of 56% was obtained from pump (2.09 μm) to total IR at a pump energy of 6.5 mJ. The corresponding idler energy was 1.45 mJ. The SRO was measured to have a slope efficiency of 64% and a threshold of 1 mJ. The spatial beam quality of the idler, characterized by the M2 parameter, was 1.38 when the SRO was pumped at 2.5 times threshold. These results show that ZnGeP2 OPOs directly pumped by a CrTmHo:YAG laser can be operated efficiently, while maintaining good IR beam quality. The wide tuning range and a high pulse energy makes this SRO particularly suitable for spectroscopic applications, and, tests in the field medical application, e.g., for cutting of soft tissue during surgery or corneal corrections.

AB - We report a singly resonant optical parametric oscillator (SRO) based on a ZnGeP2 crystal directly-pumped by a lamp-pumped Q-switched CrTmHo:YAG laser. The IR wavelength was tuneable from 4.7 μm to 7.8 μm via crystal angle tuning. A maximum optical to optical efficiency of 56% was obtained from pump (2.09 μm) to total IR at a pump energy of 6.5 mJ. The corresponding idler energy was 1.45 mJ. The SRO was measured to have a slope efficiency of 64% and a threshold of 1 mJ. The spatial beam quality of the idler, characterized by the M2 parameter, was 1.38 when the SRO was pumped at 2.5 times threshold. These results show that ZnGeP2 OPOs directly pumped by a CrTmHo:YAG laser can be operated efficiently, while maintaining good IR beam quality. The wide tuning range and a high pulse energy makes this SRO particularly suitable for spectroscopic applications, and, tests in the field medical application, e.g., for cutting of soft tissue during surgery or corneal corrections.

KW - METIS-247335

KW - IR-96128

U2 - 10.1117/12.763134

DO - 10.1117/12.763134

M3 - Conference contribution

SN - 9780819470508

T3 - 68751G

SP - 68751G-1-68751G-9

BT - Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VII

A2 - Powers, Peter E.

PB - SPIE

CY - San Jose, CA, USA

T2 - Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VII

Y2 - 21 January 2008 through 24 January 2008

ER -

A CrTmHo:YAG laser pumped ZnGeP2 optical parametric oscillator for mid-infrared spectroscopy

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