Abstract

We report a high-power, cw, single-frequency optical parametric oscillator pumped external to an optically pumped semiconductor laser (OPSL). The singly resonant oscillator (SRO), based on a 30mm crystal of MgO:sPPLT, is pumped by a 6W, cw OPSL at 532nm. By deploying signal outcoupling and loose focusing in the presence of low pump power, we achieve significant improvements in SRO performance across the tuning range with regard to signal power, extraction efficiency, and pump depletion by reducing thermal effects. We generate >1.78W of idler and >0.9W of signal over 8561404nm while maintaining a total output power of >2W over 93% of the tuning range at an extraction efficiency of 48.7% and pump depletion of 84%. The signal power remains within 0.851.05W across the entire tuning range and has a TEM00 spatial profile with M2<1.28 and circularity of >97%. Measurements of signal spectrum confirm single-frequency performance with an instantaneous linewidth of 15MHz and frequency stability better than 60MHz over 60s.

© 2010 Optical Society of America

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References

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2009 (2)

2008 (2)

G. K. Samanta and M. Ebrahim-Zadeh, Opt. Express 16, 6883 (2008).
[CrossRef] [PubMed]

S. M. Cristescu, S. T. Persijn, S. te Lintel Hekker, and F. J. M. Harren, Appl. Phys. B 92, 343 (2008).
[CrossRef]

2007 (3)

2006 (1)

A. Henderson and R. Stafford, Appl. Phys. B 85, 181 (2006).
[CrossRef]

2005 (1)

2002 (1)

1999 (1)

1996 (1)

Adhimoolam, B.

Alexander, J. I.

Auerbach, M.

Boller, K.

Boller, K.-J.

Bosenberg, W. R.

Burns, D.

Byer, R. L.

Chilla, J.

J. Chilla, Q. Shu, H. Zhou, E. Weiss, M. Reed, and L. Spinelli, Proc. SPIE 6451, 645109 (2007).
[CrossRef]

Cristescu, S. M.

S. M. Cristescu, S. T. Persijn, S. te Lintel Hekker, and F. J. M. Harren, Appl. Phys. B 92, 343 (2008).
[CrossRef]

Das, R.

Drobshoff, A.

Dunn, M. H.

Ebrahim-Zadeh, M.

Fallnich, C.

Fayaz, G. R.

Gross, P.

Harren, F. J. M.

S. M. Cristescu, S. T. Persijn, S. te Lintel Hekker, and F. J. M. Harren, Appl. Phys. B 92, 343 (2008).
[CrossRef]

Henderson, A.

A. Henderson and R. Stafford, Appl. Phys. B 85, 181 (2006).
[CrossRef]

Hopkins, J.-M.

Klein, M.

Klein, M. E.

Kreuzer, L. B.

L. B. Kreuzer, in Proceedings of the Joint Conference on Lasers and Opto-Electronics (Institution of Electronic and Radio Engineers, 1969), pp. 52–63.

Kumar, S. C.

Lindsay, I.

Meyn, J.-P.

Mlynek, J.

Myers, L. E.

Persijn, S. T.

S. M. Cristescu, S. T. Persijn, S. te Lintel Hekker, and F. J. M. Harren, Appl. Phys. B 92, 343 (2008).
[CrossRef]

Peters, A.

Reed, M.

J. Chilla, Q. Shu, H. Zhou, E. Weiss, M. Reed, and L. Spinelli, Proc. SPIE 6451, 645109 (2007).
[CrossRef]

Samanta, G. K.

Schiller, S.

Shu, Q.

J. Chilla, Q. Shu, H. Zhou, E. Weiss, M. Reed, and L. Spinelli, Proc. SPIE 6451, 645109 (2007).
[CrossRef]

Spinelli, L.

J. Chilla, Q. Shu, H. Zhou, E. Weiss, M. Reed, and L. Spinelli, Proc. SPIE 6451, 645109 (2007).
[CrossRef]

Stafford, R.

A. Henderson and R. Stafford, Appl. Phys. B 85, 181 (2006).
[CrossRef]

Stothard, D. J.

Strössner, U.

Sun, Z.

te Lintel Hekker, S.

S. M. Cristescu, S. T. Persijn, S. te Lintel Hekker, and F. J. M. Harren, Appl. Phys. B 92, 343 (2008).
[CrossRef]

Walde, T.

Wallenstein, R.

Weiss, E.

J. Chilla, Q. Shu, H. Zhou, E. Weiss, M. Reed, and L. Spinelli, Proc. SPIE 6451, 645109 (2007).
[CrossRef]

Wessels, P.

Zhou, H.

J. Chilla, Q. Shu, H. Zhou, E. Weiss, M. Reed, and L. Spinelli, Proc. SPIE 6451, 645109 (2007).
[CrossRef]

Appl. Phys. B (2)

A. Henderson and R. Stafford, Appl. Phys. B 85, 181 (2006).
[CrossRef]

S. M. Cristescu, S. T. Persijn, S. te Lintel Hekker, and F. J. M. Harren, Appl. Phys. B 92, 343 (2008).
[CrossRef]

Opt. Express (3)

Opt. Lett. (6)

Proc. SPIE (1)

J. Chilla, Q. Shu, H. Zhou, E. Weiss, M. Reed, and L. Spinelli, Proc. SPIE 6451, 645109 (2007).
[CrossRef]

Other (1)

L. B. Kreuzer, in Proceedings of the Joint Conference on Lasers and Opto-Electronics (Institution of Electronic and Radio Engineers, 1969), pp. 52–63.

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Figures (5)

Fig. 1
Fig. 1

Schematic of the green OPSL pumped cw OC-SRO. λ / 2 , half-wave plate; PBS, polarizing beam splitter; L, lens; M, mirrors.

Fig. 2
Fig. 2

Signal power, idler power, and corresponding pump depletion for the cw OC-SRO as a function of pump power. Lines are guide to the eye.

Fig. 3
Fig. 3

(a) Extracted idler power, (b) signal power, and (c) pump depletion, across the tuning range of the OC-SRO at the maximum pump power of 5.5 W .

Fig. 4
Fig. 4

Frequency stability of the cw OC-SRO at a crystal temperature of 80 ° C ( 971.72 nm ). Inset: corresponding single- frequency signal spectrum.

Fig. 5
Fig. 5

Variation of the signal beam diameter at 971 nm measured using a lens and scanning beam profiler. Inset, corresponding far-field TEM 00 energy distribution and intensity profiles.

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