Abstract

We report a high-efficiency continuously tunable single-frequency doubly resonant optical parametric oscillator (OPO) based on periodically poled KTiOPO4. Pumped by a frequency-doubled Nd:YLF laser at 526.5nm, the OPO has a low threshold of 30mW and can deliver up to 156mW single-frequency output at 0.8μm and 89mW single-frequency output at 1.5μm with 390mW of pump power. Coarse and continuous frequency tuning are also demonstrated experimentally.

© 2011 Optical Society of America

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  1. R. G. Smith, J. E. Geusic, H. J. Levinstein, J. J. Rubin, S. Singh, and L. G. Van Uitert, “Continuous optical parametric oscillation in Ba2NaNb5O15,” Appl. Phys. Lett. 12, 308–310(1968).
    [CrossRef]
  2. R. L. Byer, M. K. Oshman, J. F. Young, and S. E. Harris, “Visible cw parametric oscillator,” Appl. Phys. Lett. 13, 109–111 (1968).
    [CrossRef]
  3. C. D. Nabors, R. C. Eckardt, W. J. Kozlovsky, and R. L. Byer, “Efficient, single-axial-mode operation of a monolithic MgO:LiNbO3 optical parametric oscillator,” Opt. Lett. 14, 1134–1136 (1989).
    [CrossRef] [PubMed]
  4. G. Breitenbach, S. Schiller, and J. Mlynek, “81% conversion efficiency in frequency-stable continuous-wave parametric oscillation,” J. Opt. Soc. Am. B 12, 2095–2101 (1995).
    [CrossRef]
  5. M. Bode, P. K. Lam, I. Freitag, A. Tünnermann, H.-A. Bachor, and H. Welling, “Continuously-tunable doubly resonant optical parametric oscillator,” Opt. Commun. 148, 117–121 (1998).
    [CrossRef]
  6. R. Al-Tahtamouni, K. Bencheikh, R. Storz, K. Schneider, M. Lang, J. Mlynek, and S. Schiller, “Long-term stable operation and absolute frequency stabilization of a doubly resonant parametric oscillator,” Appl. Phys. B 66, 733–739 (1998).
    [CrossRef]
  7. A. J. Henderson, P. M. Roper, L. A. Borschowa, and R. D. Mead, “Stable, continuously tunable operation of a diode-pumped doubly resonant optical parametric oscillator,” Opt. Lett. 25, 1264–1266 (2000).
    [CrossRef]
  8. M. Tsunekane, S. Kimura, M. Kimura, N. Taguchi, and H. Inaba, “Continuous-wave, broadband tuning from 788 to 1640 nm by a doubly resonant, MgO:LiNbO3 optical parametric oscillator,” Appl. Phys. Lett. 72, 3414–3416 (1998).
    [CrossRef]
  9. 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]
  10. T. Ikegami and H. Inaba, “Atomic and molecular spectroscopy with a continuous-wave, doubly resonant, monolithic optical parametric oscillator,” Opt. Commun. 269, 188–193 (2007).
    [CrossRef]
  11. E. Rosencher and C. Fabre, “Oscillation characteristics of continuous-wave optical parametric oscillators: Beyond the mean-field approximation,” J. Opt. Soc. Am. B 19, 1107–1116 (2002).
    [CrossRef]
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    [CrossRef] [PubMed]
  13. R. C. Eckardt, C. D. Nabors, W. J. Kozlovsky, and R. L. Byer, “Optical parametric oscillator frequency tuning and control,” J. Opt. Soc. Am. B 8, 646–667 (1991).
    [CrossRef]
  14. A. J. Henderson, M. J. Padgett, F. G. Colville, J. Zhang, and M. H. Dunn, “Doubly-resonant optical parametric oscillators: tuning behavior and stability requirements,” Opt. Commun. 119, 256–264 (1995).
    [CrossRef]
  15. L. E. Myers, R. C. Eckardt, M. M. Fejer, R. L. Byer, W. R. Bosenberg, and J. W. Pierce, “Quasi-phase-matched optical parametric oscillators in bulk periodically poled LiNbO3,” J. Opt. Soc. Am. B 12, 2102–2116 (1995).
    [CrossRef]
  16. J. Cousin, P. Masselin, W. Chen, D. Boucher, S. Kassi, D. Romanini, and P. Szriftgiser, “Application of a continuous-wave tunable erbium-doped fiber laser to molecular spectroscopy in the near infrared,” Appl. Phys. B 83, 261–266 (2006).
    [CrossRef]

2007 (1)

T. Ikegami and H. Inaba, “Atomic and molecular spectroscopy with a continuous-wave, doubly resonant, monolithic optical parametric oscillator,” Opt. Commun. 269, 188–193 (2007).
[CrossRef]

2006 (1)

J. Cousin, P. Masselin, W. Chen, D. Boucher, S. Kassi, D. Romanini, and P. Szriftgiser, “Application of a continuous-wave tunable erbium-doped fiber laser to molecular spectroscopy in the near infrared,” Appl. Phys. B 83, 261–266 (2006).
[CrossRef]

2002 (1)

2000 (2)

A. J. Henderson, P. M. Roper, L. A. Borschowa, and R. D. Mead, “Stable, continuously tunable operation of a diode-pumped doubly resonant optical parametric oscillator,” Opt. Lett. 25, 1264–1266 (2000).
[CrossRef]

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]

1998 (3)

M. Tsunekane, S. Kimura, M. Kimura, N. Taguchi, and H. Inaba, “Continuous-wave, broadband tuning from 788 to 1640 nm by a doubly resonant, MgO:LiNbO3 optical parametric oscillator,” Appl. Phys. Lett. 72, 3414–3416 (1998).
[CrossRef]

M. Bode, P. K. Lam, I. Freitag, A. Tünnermann, H.-A. Bachor, and H. Welling, “Continuously-tunable doubly resonant optical parametric oscillator,” Opt. Commun. 148, 117–121 (1998).
[CrossRef]

R. Al-Tahtamouni, K. Bencheikh, R. Storz, K. Schneider, M. Lang, J. Mlynek, and S. Schiller, “Long-term stable operation and absolute frequency stabilization of a doubly resonant parametric oscillator,” Appl. Phys. B 66, 733–739 (1998).
[CrossRef]

1997 (1)

1995 (3)

1991 (1)

1989 (1)

1968 (2)

R. G. Smith, J. E. Geusic, H. J. Levinstein, J. J. Rubin, S. Singh, and L. G. Van Uitert, “Continuous optical parametric oscillation in Ba2NaNb5O15,” Appl. Phys. Lett. 12, 308–310(1968).
[CrossRef]

R. L. Byer, M. K. Oshman, J. F. Young, and S. E. Harris, “Visible cw parametric oscillator,” Appl. Phys. Lett. 13, 109–111 (1968).
[CrossRef]

Al-Tahtamouni, R.

R. Al-Tahtamouni, K. Bencheikh, R. Storz, K. Schneider, M. Lang, J. Mlynek, and S. Schiller, “Long-term stable operation and absolute frequency stabilization of a doubly resonant parametric oscillator,” Appl. Phys. B 66, 733–739 (1998).
[CrossRef]

Bachor, H.-A.

M. Bode, P. K. Lam, I. Freitag, A. Tünnermann, H.-A. Bachor, and H. Welling, “Continuously-tunable doubly resonant optical parametric oscillator,” Opt. Commun. 148, 117–121 (1998).
[CrossRef]

Bencheikh, K.

R. Al-Tahtamouni, K. Bencheikh, R. Storz, K. Schneider, M. Lang, J. Mlynek, and S. Schiller, “Long-term stable operation and absolute frequency stabilization of a doubly resonant parametric oscillator,” Appl. Phys. B 66, 733–739 (1998).
[CrossRef]

Bode, M.

M. Bode, P. K. Lam, I. Freitag, A. Tünnermann, H.-A. Bachor, and H. Welling, “Continuously-tunable doubly resonant optical parametric oscillator,” Opt. Commun. 148, 117–121 (1998).
[CrossRef]

Borschowa, L. A.

Bosenberg, W. R.

Boucher, D.

J. Cousin, P. Masselin, W. Chen, D. Boucher, S. Kassi, D. Romanini, and P. Szriftgiser, “Application of a continuous-wave tunable erbium-doped fiber laser to molecular spectroscopy in the near infrared,” Appl. Phys. B 83, 261–266 (2006).
[CrossRef]

Breitenbach, G.

Byer, R. L.

Chen, W.

J. Cousin, P. Masselin, W. Chen, D. Boucher, S. Kassi, D. Romanini, and P. Szriftgiser, “Application of a continuous-wave tunable erbium-doped fiber laser to molecular spectroscopy in the near infrared,” Appl. Phys. B 83, 261–266 (2006).
[CrossRef]

Clarkson, W. A.

Colville, F. G.

A. J. Henderson, M. J. Padgett, F. G. Colville, J. Zhang, and M. H. Dunn, “Doubly-resonant optical parametric oscillators: tuning behavior and stability requirements,” Opt. Commun. 119, 256–264 (1995).
[CrossRef]

Cousin, J.

J. Cousin, P. Masselin, W. Chen, D. Boucher, S. Kassi, D. Romanini, and P. Szriftgiser, “Application of a continuous-wave tunable erbium-doped fiber laser to molecular spectroscopy in the near infrared,” Appl. Phys. B 83, 261–266 (2006).
[CrossRef]

Dunn, M. H.

A. J. Henderson, M. J. Padgett, F. G. Colville, J. Zhang, and M. H. Dunn, “Doubly-resonant optical parametric oscillators: tuning behavior and stability requirements,” Opt. Commun. 119, 256–264 (1995).
[CrossRef]

Eckardt, R. C.

Fabre, C.

Fejer, M. M.

Freitag, I.

M. Bode, P. K. Lam, I. Freitag, A. Tünnermann, H.-A. Bachor, and H. Welling, “Continuously-tunable doubly resonant optical parametric oscillator,” Opt. Commun. 148, 117–121 (1998).
[CrossRef]

Geusic, J. E.

R. G. Smith, J. E. Geusic, H. J. Levinstein, J. J. Rubin, S. Singh, and L. G. Van Uitert, “Continuous optical parametric oscillation in Ba2NaNb5O15,” Appl. Phys. Lett. 12, 308–310(1968).
[CrossRef]

Hanna, D. C.

Harris, S. E.

R. L. Byer, M. K. Oshman, J. F. Young, and S. E. Harris, “Visible cw parametric oscillator,” Appl. Phys. Lett. 13, 109–111 (1968).
[CrossRef]

Henderson, A. J.

A. J. Henderson, P. M. Roper, L. A. Borschowa, and R. D. Mead, “Stable, continuously tunable operation of a diode-pumped doubly resonant optical parametric oscillator,” Opt. Lett. 25, 1264–1266 (2000).
[CrossRef]

A. J. Henderson, M. J. Padgett, F. G. Colville, J. Zhang, and M. H. Dunn, “Doubly-resonant optical parametric oscillators: tuning behavior and stability requirements,” Opt. Commun. 119, 256–264 (1995).
[CrossRef]

Ikegami, T.

T. Ikegami and H. Inaba, “Atomic and molecular spectroscopy with a continuous-wave, doubly resonant, monolithic optical parametric oscillator,” Opt. Commun. 269, 188–193 (2007).
[CrossRef]

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]

Inaba, H.

T. Ikegami and H. Inaba, “Atomic and molecular spectroscopy with a continuous-wave, doubly resonant, monolithic optical parametric oscillator,” Opt. Commun. 269, 188–193 (2007).
[CrossRef]

M. Tsunekane, S. Kimura, M. Kimura, N. Taguchi, and H. Inaba, “Continuous-wave, broadband tuning from 788 to 1640 nm by a doubly resonant, MgO:LiNbO3 optical parametric oscillator,” Appl. Phys. Lett. 72, 3414–3416 (1998).
[CrossRef]

Kassi, S.

J. Cousin, P. Masselin, W. Chen, D. Boucher, S. Kassi, D. Romanini, and P. Szriftgiser, “Application of a continuous-wave tunable erbium-doped fiber laser to molecular spectroscopy in the near infrared,” Appl. Phys. B 83, 261–266 (2006).
[CrossRef]

Kimura, M.

M. Tsunekane, S. Kimura, M. Kimura, N. Taguchi, and H. Inaba, “Continuous-wave, broadband tuning from 788 to 1640 nm by a doubly resonant, MgO:LiNbO3 optical parametric oscillator,” Appl. Phys. Lett. 72, 3414–3416 (1998).
[CrossRef]

Kimura, S.

M. Tsunekane, S. Kimura, M. Kimura, N. Taguchi, and H. Inaba, “Continuous-wave, broadband tuning from 788 to 1640 nm by a doubly resonant, MgO:LiNbO3 optical parametric oscillator,” Appl. Phys. Lett. 72, 3414–3416 (1998).
[CrossRef]

Kozlovsky, W. J.

Lam, P. K.

M. Bode, P. K. Lam, I. Freitag, A. Tünnermann, H.-A. Bachor, and H. Welling, “Continuously-tunable doubly resonant optical parametric oscillator,” Opt. Commun. 148, 117–121 (1998).
[CrossRef]

Lang, M.

R. Al-Tahtamouni, K. Bencheikh, R. Storz, K. Schneider, M. Lang, J. Mlynek, and S. Schiller, “Long-term stable operation and absolute frequency stabilization of a doubly resonant parametric oscillator,” Appl. Phys. B 66, 733–739 (1998).
[CrossRef]

Levinstein, H. J.

R. G. Smith, J. E. Geusic, H. J. Levinstein, J. J. Rubin, S. Singh, and L. G. Van Uitert, “Continuous optical parametric oscillation in Ba2NaNb5O15,” Appl. Phys. Lett. 12, 308–310(1968).
[CrossRef]

Martin, K. I.

Masselin, P.

J. Cousin, P. Masselin, W. Chen, D. Boucher, S. Kassi, D. Romanini, and P. Szriftgiser, “Application of a continuous-wave tunable erbium-doped fiber laser to molecular spectroscopy in the near infrared,” Appl. Phys. B 83, 261–266 (2006).
[CrossRef]

Mead, R. D.

Mlynek, J.

R. Al-Tahtamouni, K. Bencheikh, R. Storz, K. Schneider, M. Lang, J. Mlynek, and S. Schiller, “Long-term stable operation and absolute frequency stabilization of a doubly resonant parametric oscillator,” Appl. Phys. B 66, 733–739 (1998).
[CrossRef]

G. Breitenbach, S. Schiller, and J. Mlynek, “81% conversion efficiency in frequency-stable continuous-wave parametric oscillation,” J. Opt. Soc. Am. B 12, 2095–2101 (1995).
[CrossRef]

Myers, L. E.

Nabors, C. D.

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]

Oshman, M. K.

R. L. Byer, M. K. Oshman, J. F. Young, and S. E. Harris, “Visible cw parametric oscillator,” Appl. Phys. Lett. 13, 109–111 (1968).
[CrossRef]

Padgett, M. J.

A. J. Henderson, M. J. Padgett, F. G. Colville, J. Zhang, and M. H. Dunn, “Doubly-resonant optical parametric oscillators: tuning behavior and stability requirements,” Opt. Commun. 119, 256–264 (1995).
[CrossRef]

Pierce, J. W.

Romanini, D.

J. Cousin, P. Masselin, W. Chen, D. Boucher, S. Kassi, D. Romanini, and P. Szriftgiser, “Application of a continuous-wave tunable erbium-doped fiber laser to molecular spectroscopy in the near infrared,” Appl. Phys. B 83, 261–266 (2006).
[CrossRef]

Roper, P. M.

Rosencher, E.

Rubin, J. J.

R. G. Smith, J. E. Geusic, H. J. Levinstein, J. J. Rubin, S. Singh, and L. G. Van Uitert, “Continuous optical parametric oscillation in Ba2NaNb5O15,” Appl. Phys. Lett. 12, 308–310(1968).
[CrossRef]

Schiller, S.

R. Al-Tahtamouni, K. Bencheikh, R. Storz, K. Schneider, M. Lang, J. Mlynek, and S. Schiller, “Long-term stable operation and absolute frequency stabilization of a doubly resonant parametric oscillator,” Appl. Phys. B 66, 733–739 (1998).
[CrossRef]

G. Breitenbach, S. Schiller, and J. Mlynek, “81% conversion efficiency in frequency-stable continuous-wave parametric oscillation,” J. Opt. Soc. Am. B 12, 2095–2101 (1995).
[CrossRef]

Schneider, K.

R. Al-Tahtamouni, K. Bencheikh, R. Storz, K. Schneider, M. Lang, J. Mlynek, and S. Schiller, “Long-term stable operation and absolute frequency stabilization of a doubly resonant parametric oscillator,” Appl. Phys. B 66, 733–739 (1998).
[CrossRef]

Singh, S.

R. G. Smith, J. E. Geusic, H. J. Levinstein, J. J. Rubin, S. Singh, and L. G. Van Uitert, “Continuous optical parametric oscillation in Ba2NaNb5O15,” Appl. Phys. Lett. 12, 308–310(1968).
[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, R. G.

R. G. Smith, J. E. Geusic, H. J. Levinstein, J. J. Rubin, S. Singh, and L. G. Van Uitert, “Continuous optical parametric oscillation in Ba2NaNb5O15,” Appl. Phys. Lett. 12, 308–310(1968).
[CrossRef]

Storz, R.

R. Al-Tahtamouni, K. Bencheikh, R. Storz, K. Schneider, M. Lang, J. Mlynek, and S. Schiller, “Long-term stable operation and absolute frequency stabilization of a doubly resonant parametric oscillator,” Appl. Phys. B 66, 733–739 (1998).
[CrossRef]

Szriftgiser, P.

J. Cousin, P. Masselin, W. Chen, D. Boucher, S. Kassi, D. Romanini, and P. Szriftgiser, “Application of a continuous-wave tunable erbium-doped fiber laser to molecular spectroscopy in the near infrared,” Appl. Phys. B 83, 261–266 (2006).
[CrossRef]

Taguchi, N.

M. Tsunekane, S. Kimura, M. Kimura, N. Taguchi, and H. Inaba, “Continuous-wave, broadband tuning from 788 to 1640 nm by a doubly resonant, MgO:LiNbO3 optical parametric oscillator,” Appl. Phys. Lett. 72, 3414–3416 (1998).
[CrossRef]

Tsunekane, M.

M. Tsunekane, S. Kimura, M. Kimura, N. Taguchi, and H. Inaba, “Continuous-wave, broadband tuning from 788 to 1640 nm by a doubly resonant, MgO:LiNbO3 optical parametric oscillator,” Appl. Phys. Lett. 72, 3414–3416 (1998).
[CrossRef]

Tünnermann, A.

M. Bode, P. K. Lam, I. Freitag, A. Tünnermann, H.-A. Bachor, and H. Welling, “Continuously-tunable doubly resonant optical parametric oscillator,” Opt. Commun. 148, 117–121 (1998).
[CrossRef]

Van Uitert, L. G.

R. G. Smith, J. E. Geusic, H. J. Levinstein, J. J. Rubin, S. Singh, and L. G. Van Uitert, “Continuous optical parametric oscillation in Ba2NaNb5O15,” Appl. Phys. Lett. 12, 308–310(1968).
[CrossRef]

Welling, H.

M. Bode, P. K. Lam, I. Freitag, A. Tünnermann, H.-A. Bachor, and H. Welling, “Continuously-tunable doubly resonant optical parametric oscillator,” Opt. Commun. 148, 117–121 (1998).
[CrossRef]

Young, J. F.

R. L. Byer, M. K. Oshman, J. F. Young, and S. E. Harris, “Visible cw parametric oscillator,” Appl. Phys. Lett. 13, 109–111 (1968).
[CrossRef]

Zhang, J.

A. J. Henderson, M. J. Padgett, F. G. Colville, J. Zhang, and M. H. Dunn, “Doubly-resonant optical parametric oscillators: tuning behavior and stability requirements,” Opt. Commun. 119, 256–264 (1995).
[CrossRef]

Appl. Phys. B (2)

R. Al-Tahtamouni, K. Bencheikh, R. Storz, K. Schneider, M. Lang, J. Mlynek, and S. Schiller, “Long-term stable operation and absolute frequency stabilization of a doubly resonant parametric oscillator,” Appl. Phys. B 66, 733–739 (1998).
[CrossRef]

J. Cousin, P. Masselin, W. Chen, D. Boucher, S. Kassi, D. Romanini, and P. Szriftgiser, “Application of a continuous-wave tunable erbium-doped fiber laser to molecular spectroscopy in the near infrared,” Appl. Phys. B 83, 261–266 (2006).
[CrossRef]

Appl. Phys. Lett. (3)

R. G. Smith, J. E. Geusic, H. J. Levinstein, J. J. Rubin, S. Singh, and L. G. Van Uitert, “Continuous optical parametric oscillation in Ba2NaNb5O15,” Appl. Phys. Lett. 12, 308–310(1968).
[CrossRef]

R. L. Byer, M. K. Oshman, J. F. Young, and S. E. Harris, “Visible cw parametric oscillator,” Appl. Phys. Lett. 13, 109–111 (1968).
[CrossRef]

M. Tsunekane, S. Kimura, M. Kimura, N. Taguchi, and H. Inaba, “Continuous-wave, broadband tuning from 788 to 1640 nm by a doubly resonant, MgO:LiNbO3 optical parametric oscillator,” Appl. Phys. Lett. 72, 3414–3416 (1998).
[CrossRef]

J. Opt. Soc. Am. B (4)

Opt. Commun. (4)

A. J. Henderson, M. J. Padgett, F. G. Colville, J. Zhang, and M. H. Dunn, “Doubly-resonant optical parametric oscillators: tuning behavior and stability requirements,” Opt. Commun. 119, 256–264 (1995).
[CrossRef]

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]

T. Ikegami and H. Inaba, “Atomic and molecular spectroscopy with a continuous-wave, doubly resonant, monolithic optical parametric oscillator,” Opt. Commun. 269, 188–193 (2007).
[CrossRef]

M. Bode, P. K. Lam, I. Freitag, A. Tünnermann, H.-A. Bachor, and H. Welling, “Continuously-tunable doubly resonant optical parametric oscillator,” Opt. Commun. 148, 117–121 (1998).
[CrossRef]

Opt. Lett. (3)

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Figures (5)

Fig. 1
Fig. 1

Schematic diagram of the DROPO system. FI, faraday isolator; L, lens; DBS, dichroic beam splitter.

Fig. 2
Fig. 2

Single-frequency operation of the DROPO measured by a scanning confocal Fabry–Perot interferometer. The free spectral range (FSR) of the confocal Fabry–Perot interferometer is 375 MHz ( FSR = c / 4 L cav = 375 MHz , L cav is the cavity length). To span one FSR, the cavity length should be scanned by an amount of λ / 4 (λ is the wavelength of the input light). In our case, the signal wavelength ( 0.8 μm ) is about half of the idler wavelength ( 1.5 μm ), this makes the different cavity-length interval for the FSR of the signal/idler.

Fig. 3
Fig. 3

The measured output power of the signal (solid squares) and idler (solid circles) beams versus the pump power. The solid and dashed lines are theoretical fittings for the signal and idler beams, respectively.

Fig. 4
Fig. 4

OPO output wavelengths versus the crystal temperature. Solid square, signal; solid circles, idler. The solid lines are theoretical fittings calculated using QPM condition and the Sellmeier equations. Inset, mode-hop tuning by scanning the cavity length.

Fig. 5
Fig. 5

OPO output wavelengths can be smoothly tuned by smooth tuning of the pump laser. The signal tuning range is 4.3 GHz , and the corresponding idler tuning is 2.3 GHz .

Equations (3)

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P j out = 4 P th ω j ω p T j T j + A j ( P in P th 1 ) ,
Δ k Q = k p k s k i 2 π Λ = 0 ,
δ ω j ω j ω p δ ω p ,

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