Abstract

We describe an efficient and highly stable injection-locked, laser-diode end-pumped cw Nd:YAG laser. With 22.3-W pump input from two fiber-coupled laser diodes, combined with 700 mW of power injected by a single-frequency master laser, the injection-locked slave laser emits 10 W of linearly polarized, TEM00-mode output in a single longitudinal mode. In addition to high efficiency, the injection-locked laser also possesses excellent output stability. At 300 Hz, the measured relative intensity noise and the frequency-noise spectral density are 2×10/Hz and 50Hz/Hz, respectively. To improve frequency stability further, we lock the frequency of the injection-locked laser to an external high-finesse reference cavity. When the frequency was stabilized, a minimum frequency-noise spectral density of 40mHz/Hz was measured at the frequency-stabilization loop error point at 1 kHz.

© 1996 Optical Society of America

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  1. N. Mio, Department of Applied Physics, University of Tokyo, Bunkyo, Tokyo 113 (personal communication, 1995).
  2. I. Freitag, D. Golla, S. Knoke, W. Schone, H. Zellmer, A. Tunnermann, H. Welling, Opt. Lett. 20, 462 (1995).
    [CrossRef] [PubMed]
  3. R. J. Shine, A. J. Alfrey, R. L. Byer, Proc. SPIE 2379, 112 (1995).
    [CrossRef]
  4. R. W. P. Drever, J. L. Hall, F. V. Kawalski, J. Hough, G. M. Ford, A. J. Munley, H. Ward, Appl. Phys. B 31, 97 (1983).
    [CrossRef]
  5. T. Day, E. K. Gustafson, R. L. Byer, IEEE J. Quantum Electron. 28, 1106 (1992).
    [CrossRef]
  6. A. D. Farinas, E. K. Gustafson, R. L. Byer, J. Opt. Soc. Am. B 12, 328 (1995).
    [CrossRef]
  7. K. Nakagawa, A. S. Shelkovnikov, T. Katsuda, M. Ohtsu, Opt. Commun. 109, 446 (1994).
    [CrossRef]

1995 (3)

1994 (1)

K. Nakagawa, A. S. Shelkovnikov, T. Katsuda, M. Ohtsu, Opt. Commun. 109, 446 (1994).
[CrossRef]

1992 (1)

T. Day, E. K. Gustafson, R. L. Byer, IEEE J. Quantum Electron. 28, 1106 (1992).
[CrossRef]

1983 (1)

R. W. P. Drever, J. L. Hall, F. V. Kawalski, J. Hough, G. M. Ford, A. J. Munley, H. Ward, Appl. Phys. B 31, 97 (1983).
[CrossRef]

Alfrey, A. J.

R. J. Shine, A. J. Alfrey, R. L. Byer, Proc. SPIE 2379, 112 (1995).
[CrossRef]

Byer, R. L.

R. J. Shine, A. J. Alfrey, R. L. Byer, Proc. SPIE 2379, 112 (1995).
[CrossRef]

A. D. Farinas, E. K. Gustafson, R. L. Byer, J. Opt. Soc. Am. B 12, 328 (1995).
[CrossRef]

T. Day, E. K. Gustafson, R. L. Byer, IEEE J. Quantum Electron. 28, 1106 (1992).
[CrossRef]

Day, T.

T. Day, E. K. Gustafson, R. L. Byer, IEEE J. Quantum Electron. 28, 1106 (1992).
[CrossRef]

Drever, R. W. P.

R. W. P. Drever, J. L. Hall, F. V. Kawalski, J. Hough, G. M. Ford, A. J. Munley, H. Ward, Appl. Phys. B 31, 97 (1983).
[CrossRef]

Farinas, A. D.

Ford, G. M.

R. W. P. Drever, J. L. Hall, F. V. Kawalski, J. Hough, G. M. Ford, A. J. Munley, H. Ward, Appl. Phys. B 31, 97 (1983).
[CrossRef]

Freitag, I.

Golla, D.

Gustafson, E. K.

A. D. Farinas, E. K. Gustafson, R. L. Byer, J. Opt. Soc. Am. B 12, 328 (1995).
[CrossRef]

T. Day, E. K. Gustafson, R. L. Byer, IEEE J. Quantum Electron. 28, 1106 (1992).
[CrossRef]

Hall, J. L.

R. W. P. Drever, J. L. Hall, F. V. Kawalski, J. Hough, G. M. Ford, A. J. Munley, H. Ward, Appl. Phys. B 31, 97 (1983).
[CrossRef]

Hough, J.

R. W. P. Drever, J. L. Hall, F. V. Kawalski, J. Hough, G. M. Ford, A. J. Munley, H. Ward, Appl. Phys. B 31, 97 (1983).
[CrossRef]

Katsuda, T.

K. Nakagawa, A. S. Shelkovnikov, T. Katsuda, M. Ohtsu, Opt. Commun. 109, 446 (1994).
[CrossRef]

Kawalski, F. V.

R. W. P. Drever, J. L. Hall, F. V. Kawalski, J. Hough, G. M. Ford, A. J. Munley, H. Ward, Appl. Phys. B 31, 97 (1983).
[CrossRef]

Knoke, S.

Mio, N.

N. Mio, Department of Applied Physics, University of Tokyo, Bunkyo, Tokyo 113 (personal communication, 1995).

Munley, A. J.

R. W. P. Drever, J. L. Hall, F. V. Kawalski, J. Hough, G. M. Ford, A. J. Munley, H. Ward, Appl. Phys. B 31, 97 (1983).
[CrossRef]

Nakagawa, K.

K. Nakagawa, A. S. Shelkovnikov, T. Katsuda, M. Ohtsu, Opt. Commun. 109, 446 (1994).
[CrossRef]

Ohtsu, M.

K. Nakagawa, A. S. Shelkovnikov, T. Katsuda, M. Ohtsu, Opt. Commun. 109, 446 (1994).
[CrossRef]

Schone, W.

Shelkovnikov, A. S.

K. Nakagawa, A. S. Shelkovnikov, T. Katsuda, M. Ohtsu, Opt. Commun. 109, 446 (1994).
[CrossRef]

Shine, R. J.

R. J. Shine, A. J. Alfrey, R. L. Byer, Proc. SPIE 2379, 112 (1995).
[CrossRef]

Tunnermann, A.

Ward, H.

R. W. P. Drever, J. L. Hall, F. V. Kawalski, J. Hough, G. M. Ford, A. J. Munley, H. Ward, Appl. Phys. B 31, 97 (1983).
[CrossRef]

Welling, H.

Zellmer, H.

Appl. Phys. B (1)

R. W. P. Drever, J. L. Hall, F. V. Kawalski, J. Hough, G. M. Ford, A. J. Munley, H. Ward, Appl. Phys. B 31, 97 (1983).
[CrossRef]

IEEE J. Quantum Electron. (1)

T. Day, E. K. Gustafson, R. L. Byer, IEEE J. Quantum Electron. 28, 1106 (1992).
[CrossRef]

J. Opt. Soc. Am. B (1)

Opt. Commun. (1)

K. Nakagawa, A. S. Shelkovnikov, T. Katsuda, M. Ohtsu, Opt. Commun. 109, 446 (1994).
[CrossRef]

Opt. Lett. (1)

Proc. SPIE (1)

R. J. Shine, A. J. Alfrey, R. L. Byer, Proc. SPIE 2379, 112 (1995).
[CrossRef]

Other (1)

N. Mio, Department of Applied Physics, University of Tokyo, Bunkyo, Tokyo 113 (personal communication, 1995).

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Figures (4)

Fig. 1
Fig. 1

Schematic of the injection-locked laser and the frequency-characterization–stabilization setup: ISO, isolator; EO’s, electro-optics modulators; RF, radio-frequency generator; MIX’s, double-balance mixers; QWP, quarter-wave plate; HWP, half-wave plate.

Fig. 2
Fig. 2

Injection-locked, unidirectional output power versus pump power.

Fig. 3
Fig. 3

Intensity noise of (a) the master NPRO, (b) the injection-locked laser, and (c) the detector noise floor. No relaxation oscillation peaks are apparent in either the or the injection-locked laser.

Fig. 4
Fig. 4

Frequency noise of (a) the free-running master NPRO, (b) the free-running injection-locked laser, and (c) the frequency-stabilized injection-locked laser when locked to an external high-finesse reference cavity. Curve (c) is taken from the stabilization loop error point.

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