Abstract

We demonstrate two different schemes for the spectral narrowing of a 12 emitter 980 nm gain guided tapered diode laser bar. In the first scheme, a reflective grating has been used in a Littman Metcalf configuration and the wavelength of the laser emission could be narrowed down from more than 5.5 nm in the free running mode to 0.04 nm (FWHM) at an operating current of 30 A with an output power of 8 W. The spectrum was found to be tunable within a range of 16 nm. In the second scheme, a volume Bragg grating has been used to narrow the wavelength of the laser bar from over 5 nm to less than 0.2 nm with an output of 5 W at 20 A. To our knowledge, this is the first time spectral narrowing has been performed on a gain guided tapered diode laser bar. In the Littman Metcalf configuration, the spectral brightness has been increased by 86 times and in the volume Bragg grating cavity the spectral brightness has been improved over 18 times when compared to the free running operation. These schemes could be also extended for other wavelengths of interest in the future.

© 2011 OSA

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  1. T. G. Walker and W. Happer, “Spin-exchange optical pumping of noble-gas nuclei,” Rev. Mod. Phys. 69(2), 629–642 (1997).
    [CrossRef]
  2. C. Scholz, K. Boucke, R. Poprawe, M. T. Kelemen, J. Weber, M. Mikulla, and G. Weimann, “Comparison between 50 W tapered laser arrays and tapered single emitters,” Proc. of SPIE Vol. 6104, 61040G1–8 (2006).
  3. D. Vijayakumar, O. B. Jensen, R. Ostendorf, T. Westphalen, and B. Thestrup, “Spectral beam combining of a 980 nm tapered diode laser bar,” Opt. Express 18(2), 893–898 (2010).
    [CrossRef] [PubMed]
  4. I. A. Nelson, B. Chann, and T. G. Walker, “Spin-exchange optical pumping using a frequency-narrowed high power diode laser,” Appl. Phys. Lett. 76(11), 1356–1358 (2000).
    [CrossRef]
  5. B. V. Zhdanov, T. Ehrenreich, and R. J. Knize, “Narrowband external cavity laser diode array,” Electron. Lett. 43(4), 221–222 (2007).
    [CrossRef]
  6. B. Chann, I. Nelson, and T. G. Walker, “Frequency-narrowed external-cavity diode-laser-array bar,” Opt. Lett. 25(18), 1352–1354 (2000).
    [CrossRef]
  7. E. Babcock, B. Chann, I. A. Nelson, and T. G. Walker, “Frequency-narrowed diode array bar,” Appl. Opt. 44(15), 3098–3104 (2005).
    [CrossRef] [PubMed]
  8. C. L. Talbot, M. E. Friese, D. Wang, I. Brereton, N. R. Heckenberg, and H. Rubinsztein-Dunlop, “Linewidth reduction in a large-smile laser diode array,” Appl. Opt. 44(29), 6264–6268 (2005).
    [CrossRef] [PubMed]
  9. G. B. Venus, A. Sevian, V. I. Smirnov, and L. B. Glebov, “Stable coherent coupling of laser diodes by a volume Bragg grating in photothermorefractive glass,” Opt. Lett. 31(10), 1453–1455 (2006).
    [CrossRef] [PubMed]
  10. L. S. Meng, B. Nizamov, P. Madasamy, J. K. Brasseur, T. Henshaw, and D. K. Neumann, “High power 7-GHz bandwidth external-cavity diode laser array and its use in optically pumping singlet delta oxygen,” Opt. Express 14(22), 10469–10474 (2006).
    [CrossRef] [PubMed]
  11. A. Gourevitch, G. Venus, V. Smirnov, D. A. Hostutler, and L. Glebov, “Continuous wave, 30 W laser-diode bar with 10 GHz linewidth for Rb laser pumping,” Opt. Lett. 33(7), 702–704 (2008).
    [CrossRef] [PubMed]
  12. B. Liu, Y. Liu, and Y. Braiman, “Coherent beam combining of high power broad-area laser diode array with a closed-V-shape external Talbot cavity,” Opt. Express 18(7), 7361–7368 (2010).
    [CrossRef] [PubMed]
  13. J. T. Gopinath, B. Chann, T. Y. Fan, and A. Sanchez-Rubio, “1450-nm high-brightness wavelength-beam combined diode laser array,” Opt. Express 16(13), 9405–9410 (2008).
    [CrossRef] [PubMed]
  14. J. F. Monjardin, K. M. Nowak, H. J. Baker, and D. R. Hall, “Correction of beam errors in high power laser diode bars and stacks,” Opt. Express 14(18), 8178–8183 (2006).
    [CrossRef] [PubMed]
  15. D. Paboeuf, G. Lucas-Leclin, P. Georges, N. Michel, M. Krakowski, J. Lim, S. Sujecki, and E. Larkins, “Narrow-line coherently combined tapered laser diodes in a Talbot external cavity with a volume Bragg grating,” Appl. Phys. Lett. 93(21), 211102 (2008).
    [CrossRef]
  16. www.powerphotonic.co.uk

2010 (2)

D. Vijayakumar, O. B. Jensen, R. Ostendorf, T. Westphalen, and B. Thestrup, “Spectral beam combining of a 980 nm tapered diode laser bar,” Opt. Express 18(2), 893–898 (2010).
[CrossRef] [PubMed]

B. Liu, Y. Liu, and Y. Braiman, “Coherent beam combining of high power broad-area laser diode array with a closed-V-shape external Talbot cavity,” Opt. Express 18(7), 7361–7368 (2010).
[CrossRef] [PubMed]

2008 (3)

J. T. Gopinath, B. Chann, T. Y. Fan, and A. Sanchez-Rubio, “1450-nm high-brightness wavelength-beam combined diode laser array,” Opt. Express 16(13), 9405–9410 (2008).
[CrossRef] [PubMed]

A. Gourevitch, G. Venus, V. Smirnov, D. A. Hostutler, and L. Glebov, “Continuous wave, 30 W laser-diode bar with 10 GHz linewidth for Rb laser pumping,” Opt. Lett. 33(7), 702–704 (2008).
[CrossRef] [PubMed]

D. Paboeuf, G. Lucas-Leclin, P. Georges, N. Michel, M. Krakowski, J. Lim, S. Sujecki, and E. Larkins, “Narrow-line coherently combined tapered laser diodes in a Talbot external cavity with a volume Bragg grating,” Appl. Phys. Lett. 93(21), 211102 (2008).
[CrossRef]

2007 (1)

B. V. Zhdanov, T. Ehrenreich, and R. J. Knize, “Narrowband external cavity laser diode array,” Electron. Lett. 43(4), 221–222 (2007).
[CrossRef]

2006 (3)

G. B. Venus, A. Sevian, V. I. Smirnov, and L. B. Glebov, “Stable coherent coupling of laser diodes by a volume Bragg grating in photothermorefractive glass,” Opt. Lett. 31(10), 1453–1455 (2006).
[CrossRef] [PubMed]

L. S. Meng, B. Nizamov, P. Madasamy, J. K. Brasseur, T. Henshaw, and D. K. Neumann, “High power 7-GHz bandwidth external-cavity diode laser array and its use in optically pumping singlet delta oxygen,” Opt. Express 14(22), 10469–10474 (2006).
[CrossRef] [PubMed]

J. F. Monjardin, K. M. Nowak, H. J. Baker, and D. R. Hall, “Correction of beam errors in high power laser diode bars and stacks,” Opt. Express 14(18), 8178–8183 (2006).
[CrossRef] [PubMed]

2005 (2)

E. Babcock, B. Chann, I. A. Nelson, and T. G. Walker, “Frequency-narrowed diode array bar,” Appl. Opt. 44(15), 3098–3104 (2005).
[CrossRef] [PubMed]

C. L. Talbot, M. E. Friese, D. Wang, I. Brereton, N. R. Heckenberg, and H. Rubinsztein-Dunlop, “Linewidth reduction in a large-smile laser diode array,” Appl. Opt. 44(29), 6264–6268 (2005).
[CrossRef] [PubMed]

2000 (2)

B. Chann, I. Nelson, and T. G. Walker, “Frequency-narrowed external-cavity diode-laser-array bar,” Opt. Lett. 25(18), 1352–1354 (2000).
[CrossRef]

I. A. Nelson, B. Chann, and T. G. Walker, “Spin-exchange optical pumping using a frequency-narrowed high power diode laser,” Appl. Phys. Lett. 76(11), 1356–1358 (2000).
[CrossRef]

1997 (1)

T. G. Walker and W. Happer, “Spin-exchange optical pumping of noble-gas nuclei,” Rev. Mod. Phys. 69(2), 629–642 (1997).
[CrossRef]

Babcock, E.

E. Babcock, B. Chann, I. A. Nelson, and T. G. Walker, “Frequency-narrowed diode array bar,” Appl. Opt. 44(15), 3098–3104 (2005).
[CrossRef] [PubMed]

Baker, H. J.

J. F. Monjardin, K. M. Nowak, H. J. Baker, and D. R. Hall, “Correction of beam errors in high power laser diode bars and stacks,” Opt. Express 14(18), 8178–8183 (2006).
[CrossRef] [PubMed]

Braiman, Y.

B. Liu, Y. Liu, and Y. Braiman, “Coherent beam combining of high power broad-area laser diode array with a closed-V-shape external Talbot cavity,” Opt. Express 18(7), 7361–7368 (2010).
[CrossRef] [PubMed]

Brasseur, J. K.

L. S. Meng, B. Nizamov, P. Madasamy, J. K. Brasseur, T. Henshaw, and D. K. Neumann, “High power 7-GHz bandwidth external-cavity diode laser array and its use in optically pumping singlet delta oxygen,” Opt. Express 14(22), 10469–10474 (2006).
[CrossRef] [PubMed]

Brereton, I.

C. L. Talbot, M. E. Friese, D. Wang, I. Brereton, N. R. Heckenberg, and H. Rubinsztein-Dunlop, “Linewidth reduction in a large-smile laser diode array,” Appl. Opt. 44(29), 6264–6268 (2005).
[CrossRef] [PubMed]

Chann, B.

J. T. Gopinath, B. Chann, T. Y. Fan, and A. Sanchez-Rubio, “1450-nm high-brightness wavelength-beam combined diode laser array,” Opt. Express 16(13), 9405–9410 (2008).
[CrossRef] [PubMed]

E. Babcock, B. Chann, I. A. Nelson, and T. G. Walker, “Frequency-narrowed diode array bar,” Appl. Opt. 44(15), 3098–3104 (2005).
[CrossRef] [PubMed]

B. Chann, I. Nelson, and T. G. Walker, “Frequency-narrowed external-cavity diode-laser-array bar,” Opt. Lett. 25(18), 1352–1354 (2000).
[CrossRef]

I. A. Nelson, B. Chann, and T. G. Walker, “Spin-exchange optical pumping using a frequency-narrowed high power diode laser,” Appl. Phys. Lett. 76(11), 1356–1358 (2000).
[CrossRef]

Ehrenreich, T.

B. V. Zhdanov, T. Ehrenreich, and R. J. Knize, “Narrowband external cavity laser diode array,” Electron. Lett. 43(4), 221–222 (2007).
[CrossRef]

Fan, T. Y.

J. T. Gopinath, B. Chann, T. Y. Fan, and A. Sanchez-Rubio, “1450-nm high-brightness wavelength-beam combined diode laser array,” Opt. Express 16(13), 9405–9410 (2008).
[CrossRef] [PubMed]

Friese, M. E.

C. L. Talbot, M. E. Friese, D. Wang, I. Brereton, N. R. Heckenberg, and H. Rubinsztein-Dunlop, “Linewidth reduction in a large-smile laser diode array,” Appl. Opt. 44(29), 6264–6268 (2005).
[CrossRef] [PubMed]

Georges, P.

D. Paboeuf, G. Lucas-Leclin, P. Georges, N. Michel, M. Krakowski, J. Lim, S. Sujecki, and E. Larkins, “Narrow-line coherently combined tapered laser diodes in a Talbot external cavity with a volume Bragg grating,” Appl. Phys. Lett. 93(21), 211102 (2008).
[CrossRef]

Glebov, L.

A. Gourevitch, G. Venus, V. Smirnov, D. A. Hostutler, and L. Glebov, “Continuous wave, 30 W laser-diode bar with 10 GHz linewidth for Rb laser pumping,” Opt. Lett. 33(7), 702–704 (2008).
[CrossRef] [PubMed]

Glebov, L. B.

G. B. Venus, A. Sevian, V. I. Smirnov, and L. B. Glebov, “Stable coherent coupling of laser diodes by a volume Bragg grating in photothermorefractive glass,” Opt. Lett. 31(10), 1453–1455 (2006).
[CrossRef] [PubMed]

Gopinath, J. T.

J. T. Gopinath, B. Chann, T. Y. Fan, and A. Sanchez-Rubio, “1450-nm high-brightness wavelength-beam combined diode laser array,” Opt. Express 16(13), 9405–9410 (2008).
[CrossRef] [PubMed]

Gourevitch, A.

A. Gourevitch, G. Venus, V. Smirnov, D. A. Hostutler, and L. Glebov, “Continuous wave, 30 W laser-diode bar with 10 GHz linewidth for Rb laser pumping,” Opt. Lett. 33(7), 702–704 (2008).
[CrossRef] [PubMed]

Hall, D. R.

J. F. Monjardin, K. M. Nowak, H. J. Baker, and D. R. Hall, “Correction of beam errors in high power laser diode bars and stacks,” Opt. Express 14(18), 8178–8183 (2006).
[CrossRef] [PubMed]

Happer, W.

T. G. Walker and W. Happer, “Spin-exchange optical pumping of noble-gas nuclei,” Rev. Mod. Phys. 69(2), 629–642 (1997).
[CrossRef]

Heckenberg, N. R.

C. L. Talbot, M. E. Friese, D. Wang, I. Brereton, N. R. Heckenberg, and H. Rubinsztein-Dunlop, “Linewidth reduction in a large-smile laser diode array,” Appl. Opt. 44(29), 6264–6268 (2005).
[CrossRef] [PubMed]

Henshaw, T.

L. S. Meng, B. Nizamov, P. Madasamy, J. K. Brasseur, T. Henshaw, and D. K. Neumann, “High power 7-GHz bandwidth external-cavity diode laser array and its use in optically pumping singlet delta oxygen,” Opt. Express 14(22), 10469–10474 (2006).
[CrossRef] [PubMed]

Hostutler, D. A.

A. Gourevitch, G. Venus, V. Smirnov, D. A. Hostutler, and L. Glebov, “Continuous wave, 30 W laser-diode bar with 10 GHz linewidth for Rb laser pumping,” Opt. Lett. 33(7), 702–704 (2008).
[CrossRef] [PubMed]

Jensen, O. B.

D. Vijayakumar, O. B. Jensen, R. Ostendorf, T. Westphalen, and B. Thestrup, “Spectral beam combining of a 980 nm tapered diode laser bar,” Opt. Express 18(2), 893–898 (2010).
[CrossRef] [PubMed]

Knize, R. J.

B. V. Zhdanov, T. Ehrenreich, and R. J. Knize, “Narrowband external cavity laser diode array,” Electron. Lett. 43(4), 221–222 (2007).
[CrossRef]

Krakowski, M.

D. Paboeuf, G. Lucas-Leclin, P. Georges, N. Michel, M. Krakowski, J. Lim, S. Sujecki, and E. Larkins, “Narrow-line coherently combined tapered laser diodes in a Talbot external cavity with a volume Bragg grating,” Appl. Phys. Lett. 93(21), 211102 (2008).
[CrossRef]

Larkins, E.

D. Paboeuf, G. Lucas-Leclin, P. Georges, N. Michel, M. Krakowski, J. Lim, S. Sujecki, and E. Larkins, “Narrow-line coherently combined tapered laser diodes in a Talbot external cavity with a volume Bragg grating,” Appl. Phys. Lett. 93(21), 211102 (2008).
[CrossRef]

Lim, J.

D. Paboeuf, G. Lucas-Leclin, P. Georges, N. Michel, M. Krakowski, J. Lim, S. Sujecki, and E. Larkins, “Narrow-line coherently combined tapered laser diodes in a Talbot external cavity with a volume Bragg grating,” Appl. Phys. Lett. 93(21), 211102 (2008).
[CrossRef]

Liu, B.

B. Liu, Y. Liu, and Y. Braiman, “Coherent beam combining of high power broad-area laser diode array with a closed-V-shape external Talbot cavity,” Opt. Express 18(7), 7361–7368 (2010).
[CrossRef] [PubMed]

Liu, Y.

B. Liu, Y. Liu, and Y. Braiman, “Coherent beam combining of high power broad-area laser diode array with a closed-V-shape external Talbot cavity,” Opt. Express 18(7), 7361–7368 (2010).
[CrossRef] [PubMed]

Lucas-Leclin, G.

D. Paboeuf, G. Lucas-Leclin, P. Georges, N. Michel, M. Krakowski, J. Lim, S. Sujecki, and E. Larkins, “Narrow-line coherently combined tapered laser diodes in a Talbot external cavity with a volume Bragg grating,” Appl. Phys. Lett. 93(21), 211102 (2008).
[CrossRef]

Madasamy, P.

L. S. Meng, B. Nizamov, P. Madasamy, J. K. Brasseur, T. Henshaw, and D. K. Neumann, “High power 7-GHz bandwidth external-cavity diode laser array and its use in optically pumping singlet delta oxygen,” Opt. Express 14(22), 10469–10474 (2006).
[CrossRef] [PubMed]

Meng, L. S.

L. S. Meng, B. Nizamov, P. Madasamy, J. K. Brasseur, T. Henshaw, and D. K. Neumann, “High power 7-GHz bandwidth external-cavity diode laser array and its use in optically pumping singlet delta oxygen,” Opt. Express 14(22), 10469–10474 (2006).
[CrossRef] [PubMed]

Michel, N.

D. Paboeuf, G. Lucas-Leclin, P. Georges, N. Michel, M. Krakowski, J. Lim, S. Sujecki, and E. Larkins, “Narrow-line coherently combined tapered laser diodes in a Talbot external cavity with a volume Bragg grating,” Appl. Phys. Lett. 93(21), 211102 (2008).
[CrossRef]

Monjardin, J. F.

J. F. Monjardin, K. M. Nowak, H. J. Baker, and D. R. Hall, “Correction of beam errors in high power laser diode bars and stacks,” Opt. Express 14(18), 8178–8183 (2006).
[CrossRef] [PubMed]

Nelson, I.

B. Chann, I. Nelson, and T. G. Walker, “Frequency-narrowed external-cavity diode-laser-array bar,” Opt. Lett. 25(18), 1352–1354 (2000).
[CrossRef]

Nelson, I. A.

E. Babcock, B. Chann, I. A. Nelson, and T. G. Walker, “Frequency-narrowed diode array bar,” Appl. Opt. 44(15), 3098–3104 (2005).
[CrossRef] [PubMed]

I. A. Nelson, B. Chann, and T. G. Walker, “Spin-exchange optical pumping using a frequency-narrowed high power diode laser,” Appl. Phys. Lett. 76(11), 1356–1358 (2000).
[CrossRef]

Neumann, D. K.

L. S. Meng, B. Nizamov, P. Madasamy, J. K. Brasseur, T. Henshaw, and D. K. Neumann, “High power 7-GHz bandwidth external-cavity diode laser array and its use in optically pumping singlet delta oxygen,” Opt. Express 14(22), 10469–10474 (2006).
[CrossRef] [PubMed]

Nizamov, B.

L. S. Meng, B. Nizamov, P. Madasamy, J. K. Brasseur, T. Henshaw, and D. K. Neumann, “High power 7-GHz bandwidth external-cavity diode laser array and its use in optically pumping singlet delta oxygen,” Opt. Express 14(22), 10469–10474 (2006).
[CrossRef] [PubMed]

Nowak, K. M.

J. F. Monjardin, K. M. Nowak, H. J. Baker, and D. R. Hall, “Correction of beam errors in high power laser diode bars and stacks,” Opt. Express 14(18), 8178–8183 (2006).
[CrossRef] [PubMed]

Ostendorf, R.

D. Vijayakumar, O. B. Jensen, R. Ostendorf, T. Westphalen, and B. Thestrup, “Spectral beam combining of a 980 nm tapered diode laser bar,” Opt. Express 18(2), 893–898 (2010).
[CrossRef] [PubMed]

Paboeuf, D.

D. Paboeuf, G. Lucas-Leclin, P. Georges, N. Michel, M. Krakowski, J. Lim, S. Sujecki, and E. Larkins, “Narrow-line coherently combined tapered laser diodes in a Talbot external cavity with a volume Bragg grating,” Appl. Phys. Lett. 93(21), 211102 (2008).
[CrossRef]

Rubinsztein-Dunlop, H.

C. L. Talbot, M. E. Friese, D. Wang, I. Brereton, N. R. Heckenberg, and H. Rubinsztein-Dunlop, “Linewidth reduction in a large-smile laser diode array,” Appl. Opt. 44(29), 6264–6268 (2005).
[CrossRef] [PubMed]

Sanchez-Rubio, A.

J. T. Gopinath, B. Chann, T. Y. Fan, and A. Sanchez-Rubio, “1450-nm high-brightness wavelength-beam combined diode laser array,” Opt. Express 16(13), 9405–9410 (2008).
[CrossRef] [PubMed]

Sevian, A.

G. B. Venus, A. Sevian, V. I. Smirnov, and L. B. Glebov, “Stable coherent coupling of laser diodes by a volume Bragg grating in photothermorefractive glass,” Opt. Lett. 31(10), 1453–1455 (2006).
[CrossRef] [PubMed]

Smirnov, V.

A. Gourevitch, G. Venus, V. Smirnov, D. A. Hostutler, and L. Glebov, “Continuous wave, 30 W laser-diode bar with 10 GHz linewidth for Rb laser pumping,” Opt. Lett. 33(7), 702–704 (2008).
[CrossRef] [PubMed]

Smirnov, V. I.

G. B. Venus, A. Sevian, V. I. Smirnov, and L. B. Glebov, “Stable coherent coupling of laser diodes by a volume Bragg grating in photothermorefractive glass,” Opt. Lett. 31(10), 1453–1455 (2006).
[CrossRef] [PubMed]

Sujecki, S.

D. Paboeuf, G. Lucas-Leclin, P. Georges, N. Michel, M. Krakowski, J. Lim, S. Sujecki, and E. Larkins, “Narrow-line coherently combined tapered laser diodes in a Talbot external cavity with a volume Bragg grating,” Appl. Phys. Lett. 93(21), 211102 (2008).
[CrossRef]

Talbot, C. L.

C. L. Talbot, M. E. Friese, D. Wang, I. Brereton, N. R. Heckenberg, and H. Rubinsztein-Dunlop, “Linewidth reduction in a large-smile laser diode array,” Appl. Opt. 44(29), 6264–6268 (2005).
[CrossRef] [PubMed]

Thestrup, B.

D. Vijayakumar, O. B. Jensen, R. Ostendorf, T. Westphalen, and B. Thestrup, “Spectral beam combining of a 980 nm tapered diode laser bar,” Opt. Express 18(2), 893–898 (2010).
[CrossRef] [PubMed]

Venus, G.

A. Gourevitch, G. Venus, V. Smirnov, D. A. Hostutler, and L. Glebov, “Continuous wave, 30 W laser-diode bar with 10 GHz linewidth for Rb laser pumping,” Opt. Lett. 33(7), 702–704 (2008).
[CrossRef] [PubMed]

Venus, G. B.

G. B. Venus, A. Sevian, V. I. Smirnov, and L. B. Glebov, “Stable coherent coupling of laser diodes by a volume Bragg grating in photothermorefractive glass,” Opt. Lett. 31(10), 1453–1455 (2006).
[CrossRef] [PubMed]

Vijayakumar, D.

D. Vijayakumar, O. B. Jensen, R. Ostendorf, T. Westphalen, and B. Thestrup, “Spectral beam combining of a 980 nm tapered diode laser bar,” Opt. Express 18(2), 893–898 (2010).
[CrossRef] [PubMed]

Walker, T. G.

E. Babcock, B. Chann, I. A. Nelson, and T. G. Walker, “Frequency-narrowed diode array bar,” Appl. Opt. 44(15), 3098–3104 (2005).
[CrossRef] [PubMed]

B. Chann, I. Nelson, and T. G. Walker, “Frequency-narrowed external-cavity diode-laser-array bar,” Opt. Lett. 25(18), 1352–1354 (2000).
[CrossRef]

I. A. Nelson, B. Chann, and T. G. Walker, “Spin-exchange optical pumping using a frequency-narrowed high power diode laser,” Appl. Phys. Lett. 76(11), 1356–1358 (2000).
[CrossRef]

T. G. Walker and W. Happer, “Spin-exchange optical pumping of noble-gas nuclei,” Rev. Mod. Phys. 69(2), 629–642 (1997).
[CrossRef]

Wang, D.

C. L. Talbot, M. E. Friese, D. Wang, I. Brereton, N. R. Heckenberg, and H. Rubinsztein-Dunlop, “Linewidth reduction in a large-smile laser diode array,” Appl. Opt. 44(29), 6264–6268 (2005).
[CrossRef] [PubMed]

Westphalen, T.

D. Vijayakumar, O. B. Jensen, R. Ostendorf, T. Westphalen, and B. Thestrup, “Spectral beam combining of a 980 nm tapered diode laser bar,” Opt. Express 18(2), 893–898 (2010).
[CrossRef] [PubMed]

Zhdanov, B. V.

B. V. Zhdanov, T. Ehrenreich, and R. J. Knize, “Narrowband external cavity laser diode array,” Electron. Lett. 43(4), 221–222 (2007).
[CrossRef]

Appl. Opt. (2)

E. Babcock, B. Chann, I. A. Nelson, and T. G. Walker, “Frequency-narrowed diode array bar,” Appl. Opt. 44(15), 3098–3104 (2005).
[CrossRef] [PubMed]

C. L. Talbot, M. E. Friese, D. Wang, I. Brereton, N. R. Heckenberg, and H. Rubinsztein-Dunlop, “Linewidth reduction in a large-smile laser diode array,” Appl. Opt. 44(29), 6264–6268 (2005).
[CrossRef] [PubMed]

Appl. Phys. Lett. (2)

I. A. Nelson, B. Chann, and T. G. Walker, “Spin-exchange optical pumping using a frequency-narrowed high power diode laser,” Appl. Phys. Lett. 76(11), 1356–1358 (2000).
[CrossRef]

D. Paboeuf, G. Lucas-Leclin, P. Georges, N. Michel, M. Krakowski, J. Lim, S. Sujecki, and E. Larkins, “Narrow-line coherently combined tapered laser diodes in a Talbot external cavity with a volume Bragg grating,” Appl. Phys. Lett. 93(21), 211102 (2008).
[CrossRef]

Electron. Lett. (1)

B. V. Zhdanov, T. Ehrenreich, and R. J. Knize, “Narrowband external cavity laser diode array,” Electron. Lett. 43(4), 221–222 (2007).
[CrossRef]

Opt. Express (5)

L. S. Meng, B. Nizamov, P. Madasamy, J. K. Brasseur, T. Henshaw, and D. K. Neumann, “High power 7-GHz bandwidth external-cavity diode laser array and its use in optically pumping singlet delta oxygen,” Opt. Express 14(22), 10469–10474 (2006).
[CrossRef] [PubMed]

B. Liu, Y. Liu, and Y. Braiman, “Coherent beam combining of high power broad-area laser diode array with a closed-V-shape external Talbot cavity,” Opt. Express 18(7), 7361–7368 (2010).
[CrossRef] [PubMed]

J. T. Gopinath, B. Chann, T. Y. Fan, and A. Sanchez-Rubio, “1450-nm high-brightness wavelength-beam combined diode laser array,” Opt. Express 16(13), 9405–9410 (2008).
[CrossRef] [PubMed]

J. F. Monjardin, K. M. Nowak, H. J. Baker, and D. R. Hall, “Correction of beam errors in high power laser diode bars and stacks,” Opt. Express 14(18), 8178–8183 (2006).
[CrossRef] [PubMed]

D. Vijayakumar, O. B. Jensen, R. Ostendorf, T. Westphalen, and B. Thestrup, “Spectral beam combining of a 980 nm tapered diode laser bar,” Opt. Express 18(2), 893–898 (2010).
[CrossRef] [PubMed]

Opt. Lett. (3)

A. Gourevitch, G. Venus, V. Smirnov, D. A. Hostutler, and L. Glebov, “Continuous wave, 30 W laser-diode bar with 10 GHz linewidth for Rb laser pumping,” Opt. Lett. 33(7), 702–704 (2008).
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[CrossRef] [PubMed]

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[CrossRef]

Rev. Mod. Phys. (1)

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[CrossRef]

Other (2)

C. Scholz, K. Boucke, R. Poprawe, M. T. Kelemen, J. Weber, M. Mikulla, and G. Weimann, “Comparison between 50 W tapered laser arrays and tapered single emitters,” Proc. of SPIE Vol. 6104, 61040G1–8 (2006).

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Figures (7)

Fig. 1
Fig. 1

Near field image of the laser bar at 10 A (a) Without wave front correction optics. (b) With wave front correction optics.

Fig. 2
Fig. 2

Schematic diagram of the experimental setup of the Littman Metcalf configuration for spectral narrowing of the tapered diode laser bar.

Fig. 3
Fig. 3

The schematic diagram of the external cavity setup based on the volume Bragg grating.

Fig. 4
Fig. 4

The light current characteristics of the laser bar operated in the free running mode and in the external cavities.

Fig. 5
Fig. 5

The free running spectrum of the laser bar at I= 30A and the laser operating at 20°C.

Fig. 6
Fig. 6

The spectral tuning of the external cavity tapered diode laser bar at I= 30A and the laser operating at 20°C.

Fig. 7
Fig. 7

Comparison of the spectrum from a Litmann Metcalf and a VBG cavity.

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