Abstract

A singly resonant continuous-wave optical parametric oscillator (cw OPO) is described. The OPO contains no intracavity etalon, which makes its wavelength tuning simple and straightforward, including only temperature tuning of the nonlinear crystal and wavelength tuning of the pump laser. The OPO provides watt-level output in the mid-infrared region and operates reliably without mode hops for several hours.

©2008 Optical Society of America

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References

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  1. A. Henderson and R. Stafford, “Low threshold, singly-resonant CW OPO pumped by an all-fiber pump source,” Opt. Express 14, 767–772 (2006).
    [Crossref] [PubMed]
  2. A. K. Y. Ngai, S. T. Persijn, G. von Basum, and F. J. M. Harren, “Automatically tunable continuous-wave optical parametric oscillator for high-resolution spectroscopy and sensitive trace-gas detection,” Appl. Phys. B 85, 173–180 (2006).
    [Crossref]
  3. I. Lindsay, B. Adhimoolam, P. Groß, M. Klein, and K. Boller, “110GHz rapid, continuous tuning from an optical parametric oscillator pumped by a fiber-amplified DBR diode laser,” Opt. Express 13, 1234–1239 (2005).
    [Crossref] [PubMed]
  4. S. E. Bisson, K. M. Armstrong, T. J. Kulp, and M. Hartings, “Broadly tunable, mode-hop-tuned, cw optical parametric oscillator based on periodically poled lithium niobate,” Appl. Opt. 40, 6049–6055 (2001).
    [Crossref]
  5. T. Ikegami, S. Slyusarev, and S. I. Ohshima, “Long-term, mode-hop-free operation of a continuous-wave, doubly resonant, monolithic optical parametric oscillator,” Opt. Commun. 184, 13–17 (2000).
    [Crossref]
  6. G. Boyd and D. Kleinman, “Parametric interaction of focused Gaussian light beams,” J. Appl. Phys. 39, 3597–3639 (1968).
    [Crossref]
  7. A. V. Smith, SNLO software, 4.0 edn. (2005).
  8. A. V. Okishev and J. D. Zuegel, “Intracavity-pumped Raman laser action in a mid IR, continuous-wave (cw) MgO:PPLN optical parametric oscillator,” Opt. Express 14, 12169–12173 (2006).
    [Crossref] [PubMed]
  9. A. Henderson and R. Stafford, “Spectral broadening and stimulated Raman conversion in a continuous-wave optical parametric oscillator,” Opt. Lett. 32, 1281–1283 (2007).
    [Crossref] [PubMed]

2007 (1)

2006 (3)

2005 (1)

2001 (1)

2000 (1)

T. Ikegami, S. Slyusarev, and S. I. Ohshima, “Long-term, mode-hop-free operation of a continuous-wave, doubly resonant, monolithic optical parametric oscillator,” Opt. Commun. 184, 13–17 (2000).
[Crossref]

1968 (1)

G. Boyd and D. Kleinman, “Parametric interaction of focused Gaussian light beams,” J. Appl. Phys. 39, 3597–3639 (1968).
[Crossref]

Adhimoolam, B.

Armstrong, K. M.

Basum, G. von

A. K. Y. Ngai, S. T. Persijn, G. von Basum, and F. J. M. Harren, “Automatically tunable continuous-wave optical parametric oscillator for high-resolution spectroscopy and sensitive trace-gas detection,” Appl. Phys. B 85, 173–180 (2006).
[Crossref]

Bisson, S. E.

Boller, K.

Boyd, G.

G. Boyd and D. Kleinman, “Parametric interaction of focused Gaussian light beams,” J. Appl. Phys. 39, 3597–3639 (1968).
[Crossref]

Groß, P.

Harren, F. J. M.

A. K. Y. Ngai, S. T. Persijn, G. von Basum, and F. J. M. Harren, “Automatically tunable continuous-wave optical parametric oscillator for high-resolution spectroscopy and sensitive trace-gas detection,” Appl. Phys. B 85, 173–180 (2006).
[Crossref]

Hartings, M.

Henderson, A.

Ikegami, T.

T. Ikegami, S. Slyusarev, and S. I. Ohshima, “Long-term, mode-hop-free operation of a continuous-wave, doubly resonant, monolithic optical parametric oscillator,” Opt. Commun. 184, 13–17 (2000).
[Crossref]

Klein, M.

Kleinman, D.

G. Boyd and D. Kleinman, “Parametric interaction of focused Gaussian light beams,” J. Appl. Phys. 39, 3597–3639 (1968).
[Crossref]

Kulp, T. J.

Lindsay, I.

Ngai, A. K. Y.

A. K. Y. Ngai, S. T. Persijn, G. von Basum, and F. J. M. Harren, “Automatically tunable continuous-wave optical parametric oscillator for high-resolution spectroscopy and sensitive trace-gas detection,” Appl. Phys. B 85, 173–180 (2006).
[Crossref]

Ohshima, S. I.

T. Ikegami, S. Slyusarev, and S. I. Ohshima, “Long-term, mode-hop-free operation of a continuous-wave, doubly resonant, monolithic optical parametric oscillator,” Opt. Commun. 184, 13–17 (2000).
[Crossref]

Okishev, A. V.

Persijn, S. T.

A. K. Y. Ngai, S. T. Persijn, G. von Basum, and F. J. M. Harren, “Automatically tunable continuous-wave optical parametric oscillator for high-resolution spectroscopy and sensitive trace-gas detection,” Appl. Phys. B 85, 173–180 (2006).
[Crossref]

Slyusarev, S.

T. Ikegami, S. Slyusarev, and S. I. Ohshima, “Long-term, mode-hop-free operation of a continuous-wave, doubly resonant, monolithic optical parametric oscillator,” Opt. Commun. 184, 13–17 (2000).
[Crossref]

Smith, A. V.

A. V. Smith, SNLO software, 4.0 edn. (2005).

Stafford, R.

Zuegel, J. D.

Appl. Opt. (1)

Appl. Phys. B (1)

A. K. Y. Ngai, S. T. Persijn, G. von Basum, and F. J. M. Harren, “Automatically tunable continuous-wave optical parametric oscillator for high-resolution spectroscopy and sensitive trace-gas detection,” Appl. Phys. B 85, 173–180 (2006).
[Crossref]

J. Appl. Phys. (1)

G. Boyd and D. Kleinman, “Parametric interaction of focused Gaussian light beams,” J. Appl. Phys. 39, 3597–3639 (1968).
[Crossref]

Opt. Commun. (1)

T. Ikegami, S. Slyusarev, and S. I. Ohshima, “Long-term, mode-hop-free operation of a continuous-wave, doubly resonant, monolithic optical parametric oscillator,” Opt. Commun. 184, 13–17 (2000).
[Crossref]

Opt. Express (3)

Opt. Lett. (1)

Other (1)

A. V. Smith, SNLO software, 4.0 edn. (2005).

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Figures (4)
Fig. 1.
Fig. 1. Schematics of the cavity configurations used in this work. Cavity dimensions d 1 and d 2 are given in Table 1, on the next page. In the figure, L is the pump focusing lens, HR indicates mirrors that are highly reflective (R>99.9%) at the signal wavelength, and OC is the output coupler (R~98%). All mirrors were coated by QTF (Quality Thin Films).

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Fig. 2.
Fig. 2. Output power of the two-mirror OPO (left) and of the four-mirror OPO (right). Pump power was measured before the OPO cavity. For the four-mirror OPO, pump depletion is also shown. Stars indicate the idler power and pump depletion measured after realigning the cavity at the highest pump power - optimum cavity alignment slightly depends on the power level. Idler wavelength is 3130 nm.

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Fig. 3.
Fig. 3. Normalized idler power (left), and deviation of the signal frequency from its original value (right) over 20 hours. The actual idler power is 0.52 W and the idler wavelength is 3033 nm. Sample interval is 1 s. Power and frequency drifts observed during the measurement are < 1.2% and < 150 MHz, respectively.

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Fig. 4.
Fig. 4. (a). Stepwise wavelength scan over 6 THz with the two-mirror OPO. Crystal poling period of 31 μm was used. Signal frequency was scanned from 1597 nm to 1639 nm, which corresponds to an idler scan from 3188 nm to 3033 nm. Figure (b) shows a detail of the scan.

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Tables (1)

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Table 1. Parameters of the OPO cavities shown in Fig.1

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