Abstract

A high-power, low-noise photodetector, in conjunction with a current shunt actuator, is used in an ac-coupled servo to stabilize the intensity of a 10-W cw Nd:YAG laser. A relative intensity noise of 1×10-8 Hz-1/2 at 10 Hz is achieved.

© 2004 Optical Society of America

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References

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  1. B. Barish and R. Weiss, Phys. Today 52(10), 44 (1999).
    [CrossRef]
  2. LIGO Scientific Collaboration, Nucl. Instrum. Methods Phys. Res. A 517, 154 (2004).
    [CrossRef]
  3. K. W. Leong, N. C. Wong, and J. H. Shapiro, Opt. Lett. 15, 1058 (1990).
    [CrossRef] [PubMed]
  4. T. A. Savard, K. M. O’Hara, and J. E. Thomas, Phys. Rev. A 56, R1095 (1997).
    [CrossRef]
  5. Lightwave Electronics, Inc., MOPA Series 6000 Laser, SN #110.
  6. B. Willke, “Update on Advanced LIGO PSL Program,” presented at the LIGO Scientific Collaboration Meeting, Hanford, Wash.August 19–22, 2002.
  7. R. W. P. Drever, J. L. Hall, F. V. Kowalski, J. Hough, G. M. Ford, A. J. Munley, and H. Ward, Appl. Phys. 31, 97 (1983).
    [CrossRef]
  8. B. Willke, N. Uehara, E. K. Gustafson, R. L. Byer, P. J. King, S. U. Seel, and R. L. Savage, Opt. Lett. 23, 1704 (1998).
    [CrossRef]
  9. R. S. Abbott and P. J. King, Rev. Sci. Instrum. 72, 1346 (2001).
    [CrossRef]
  10. F. Seifert, “Entwicklung einer quantenrauschbegrenzten Leistungsstabilisierung für ein Präzisions-lasersystem,” Diplomarbeit (University of Hannover, Hannover, Germany, 2002).
  11. B. Willke and F. Seifert, GEO600 Project, Institute for Atomic and Molecular Physics, University of Hannover, Hannover, Germany (personal communication, 2003).

2004

LIGO Scientific Collaboration, Nucl. Instrum. Methods Phys. Res. A 517, 154 (2004).
[CrossRef]

2001

R. S. Abbott and P. J. King, Rev. Sci. Instrum. 72, 1346 (2001).
[CrossRef]

1999

B. Barish and R. Weiss, Phys. Today 52(10), 44 (1999).
[CrossRef]

1998

1997

T. A. Savard, K. M. O’Hara, and J. E. Thomas, Phys. Rev. A 56, R1095 (1997).
[CrossRef]

1990

1983

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

Abbott, R. S.

R. S. Abbott and P. J. King, Rev. Sci. Instrum. 72, 1346 (2001).
[CrossRef]

Barish, B.

B. Barish and R. Weiss, Phys. Today 52(10), 44 (1999).
[CrossRef]

Byer, R. L.

Drever, R. W. P.

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

Ford, G. M.

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

Gustafson, E. K.

Hall, J. L.

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

Hough, J.

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

King, P. J.

Kowalski, F. V.

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

Leong, K. W.

Munley, A. J.

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

O’Hara, K. M.

T. A. Savard, K. M. O’Hara, and J. E. Thomas, Phys. Rev. A 56, R1095 (1997).
[CrossRef]

Savage, R. L.

Savard, T. A.

T. A. Savard, K. M. O’Hara, and J. E. Thomas, Phys. Rev. A 56, R1095 (1997).
[CrossRef]

Seel, S. U.

Seifert, F.

F. Seifert, “Entwicklung einer quantenrauschbegrenzten Leistungsstabilisierung für ein Präzisions-lasersystem,” Diplomarbeit (University of Hannover, Hannover, Germany, 2002).

B. Willke and F. Seifert, GEO600 Project, Institute for Atomic and Molecular Physics, University of Hannover, Hannover, Germany (personal communication, 2003).

Shapiro, J. H.

Thomas, J. E.

T. A. Savard, K. M. O’Hara, and J. E. Thomas, Phys. Rev. A 56, R1095 (1997).
[CrossRef]

Uehara, N.

Ward, H.

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

Weiss, R.

B. Barish and R. Weiss, Phys. Today 52(10), 44 (1999).
[CrossRef]

Willke, B.

B. Willke, N. Uehara, E. K. Gustafson, R. L. Byer, P. J. King, S. U. Seel, and R. L. Savage, Opt. Lett. 23, 1704 (1998).
[CrossRef]

B. Willke, “Update on Advanced LIGO PSL Program,” presented at the LIGO Scientific Collaboration Meeting, Hanford, Wash.August 19–22, 2002.

B. Willke and F. Seifert, GEO600 Project, Institute for Atomic and Molecular Physics, University of Hannover, Hannover, Germany (personal communication, 2003).

Wong, N. C.

Appl. Phys.

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

Nucl. Instrum. Methods Phys. Res. A

LIGO Scientific Collaboration, Nucl. Instrum. Methods Phys. Res. A 517, 154 (2004).
[CrossRef]

Opt. Lett.

Phys. Rev. A

T. A. Savard, K. M. O’Hara, and J. E. Thomas, Phys. Rev. A 56, R1095 (1997).
[CrossRef]

Phys. Today

B. Barish and R. Weiss, Phys. Today 52(10), 44 (1999).
[CrossRef]

Rev. Sci. Instrum.

R. S. Abbott and P. J. King, Rev. Sci. Instrum. 72, 1346 (2001).
[CrossRef]

Other

F. Seifert, “Entwicklung einer quantenrauschbegrenzten Leistungsstabilisierung für ein Präzisions-lasersystem,” Diplomarbeit (University of Hannover, Hannover, Germany, 2002).

B. Willke and F. Seifert, GEO600 Project, Institute for Atomic and Molecular Physics, University of Hannover, Hannover, Germany (personal communication, 2003).

Lightwave Electronics, Inc., MOPA Series 6000 Laser, SN #110.

B. Willke, “Update on Advanced LIGO PSL Program,” presented at the LIGO Scientific Collaboration Meeting, Hanford, Wash.August 19–22, 2002.

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Figures (3)

Fig. 1
Fig. 1

Relative intensity noise (RIN) as measured by in-loop and out-of-loop photodetectors. The expected shot noise and measured electronic noise levels are shown in the light blue and green traces, respectively. The black curve shows the Advanced LIGO requirement. (Data taken June 29, 2003.)

Fig. 2
Fig. 2

Block diagram of the intensity stabilization servo. The fast path uses the fast CS actuator, whereas the slow path uses the low-bandwidth, high-range, LCFA. The control signal comes from the in-loop detector, and the out-of-loop detector is used for reference. RFPD, radio-frequency photodetector; PD, photodetector.

Fig. 3
Fig. 3

Schematic of the photodetector circuit. The bias feedback control loop can be seen on the left and the preamplification on the right. 1, unity gain amplifier; G, inverting gain amplifier.

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