Abstract

A single optical component for a diode laser bar combines fast-axis smile and lens error correction with slow-axis collimation. Produced by laser-machining/polishing, it provides 0.9mm focal length, 200μm pitch slow-axis collimation on the same surface that corrects fast-axis errors. Custom fabrication enables fill-factor optimization for the 49 single-mode beams and gives parallel collimation with rms pointing errors of 3% and 6% of the far-field divergence for the fast- and slow-axis array respectively. Sub-micron pitch mismatch between the slow-axis lens and emitter arrays, and beam pointing changes by thermal expansion of the laser bar are detected.

© 2009 OSA

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  1. 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]
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    [CrossRef] [PubMed]
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    [CrossRef] [PubMed]
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    [CrossRef]
  5. H. J. Baker, J. F. Monjardin, P. Kneip, D. R. Hall, and R. McBride, “1.8 kW diode laser system for fibre-delivery using brightness-enhanced diode stacks and a novel final beam-shaper,” Proc. SPIE 6876, 68760W (2008).
    [CrossRef]
  6. I. Hassiaoui, N. Michel, G. Bourdet, R. Mc Bride, M. Lecomte, O. Parillaud, M. Calligaro, M. Krakowski, and J.-P. Huignard, “Very compact external cavity diffraction-coupled tapered laser diodes,” Appl. Opt. 47(6), 746–750 (2008).
    [CrossRef] [PubMed]
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    [CrossRef]
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    [CrossRef]
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    [CrossRef] [PubMed]
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    [CrossRef] [PubMed]
  13. N. Lichtenstein, Y. Manz, and P. Mauron, A. FiIy, S. Arlt, A. Thies, B. Schmidt, J. Muller, S. Pawlik, B. Sverdlov, and H. Harder, “Single mode emitter array laser bars for high-brightness applications,” IEEE 19th International Semiconductor Laser Conf., Matsue-shi, Japan, 2004, Conference Digest pp. 45–46.

2009 (1)

B. Köhler, T. Brand, M. Haag, and J. Biesenbach, “Wavelength stabilized high-power diode laser modules,” in “High-Power Diode Laser Technology and Applications VII,” M.S. Zediker ed. Proc. SPIE 7198, 10 (2009).

2008 (4)

H. J. Baker, J. F. Monjardin, P. Kneip, D. R. Hall, and R. McBride, “1.8 kW diode laser system for fibre-delivery using brightness-enhanced diode stacks and a novel final beam-shaper,” Proc. SPIE 6876, 68760W (2008).
[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]

I. Hassiaoui, N. Michel, G. Bourdet, R. Mc Bride, M. Lecomte, O. Parillaud, M. Calligaro, M. Krakowski, and J.-P. Huignard, “Very compact external cavity diffraction-coupled tapered laser diodes,” Appl. Opt. 47(6), 746–750 (2008).
[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]

2006 (3)

2005 (1)

2004 (1)

C. E. Hamilton, S. C. Tidwell, D. Meekhof, J. Seamans, N. Gitkind, and D. D. Lowenthal, “High-power laser source with spectrally beam-combined diode laser bars,” Proc. SPIE 5336, 1 (2004).
[CrossRef]

2002 (2)

Baker, H. J.

Ban, V. S.

Biesenbach, J.

B. Köhler, T. Brand, M. Haag, and J. Biesenbach, “Wavelength stabilized high-power diode laser modules,” in “High-Power Diode Laser Technology and Applications VII,” M.S. Zediker ed. Proc. SPIE 7198, 10 (2009).

Bourdet, G.

Brand, T.

B. Köhler, T. Brand, M. Haag, and J. Biesenbach, “Wavelength stabilized high-power diode laser modules,” in “High-Power Diode Laser Technology and Applications VII,” M.S. Zediker ed. Proc. SPIE 7198, 10 (2009).

Brereton, I.

Calligaro, M.

Chann, B.

Fan, T. Y.

Friese, M. E. J.

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]

Gitkind, N.

C. E. Hamilton, S. C. Tidwell, D. Meekhof, J. Seamans, N. Gitkind, and D. D. Lowenthal, “High-power laser source with spectrally beam-combined diode laser bars,” Proc. SPIE 5336, 1 (2004).
[CrossRef]

Gopinath, J. T.

Goyal, A. K.

Haag, M.

B. Köhler, T. Brand, M. Haag, and J. Biesenbach, “Wavelength stabilized high-power diode laser modules,” in “High-Power Diode Laser Technology and Applications VII,” M.S. Zediker ed. Proc. SPIE 7198, 10 (2009).

Hall, D. R.

Hamilton, C. E.

C. E. Hamilton, S. C. Tidwell, D. Meekhof, J. Seamans, N. Gitkind, and D. D. Lowenthal, “High-power laser source with spectrally beam-combined diode laser bars,” Proc. SPIE 5336, 1 (2004).
[CrossRef]

Hassiaoui, I.

Heckenberg, N. R.

Huignard, J.-P.

Kneip, P.

H. J. Baker, J. F. Monjardin, P. Kneip, D. R. Hall, and R. McBride, “1.8 kW diode laser system for fibre-delivery using brightness-enhanced diode stacks and a novel final beam-shaper,” Proc. SPIE 6876, 68760W (2008).
[CrossRef]

Köhler, B.

B. Köhler, T. Brand, M. Haag, and J. Biesenbach, “Wavelength stabilized high-power diode laser modules,” in “High-Power Diode Laser Technology and Applications VII,” M.S. Zediker ed. Proc. SPIE 7198, 10 (2009).

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]

I. Hassiaoui, N. Michel, G. Bourdet, R. Mc Bride, M. Lecomte, O. Parillaud, M. Calligaro, M. Krakowski, and J.-P. Huignard, “Very compact external cavity diffraction-coupled tapered laser diodes,” Appl. Opt. 47(6), 746–750 (2008).
[CrossRef] [PubMed]

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]

Lecomte, M.

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]

Lowenthal, D. D.

C. E. Hamilton, S. C. Tidwell, D. Meekhof, J. Seamans, N. Gitkind, and D. D. Lowenthal, “High-power laser source with spectrally beam-combined diode laser bars,” Proc. SPIE 5336, 1 (2004).
[CrossRef]

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]

Markillie, G. A. J.

Mc Bride, R.

McBride, R.

H. J. Baker, J. F. Monjardin, P. Kneip, D. R. Hall, and R. McBride, “1.8 kW diode laser system for fibre-delivery using brightness-enhanced diode stacks and a novel final beam-shaper,” Proc. SPIE 6876, 68760W (2008).
[CrossRef]

Meekhof, D.

C. E. Hamilton, S. C. Tidwell, D. Meekhof, J. Seamans, N. Gitkind, and D. D. Lowenthal, “High-power laser source with spectrally beam-combined diode laser bars,” Proc. SPIE 5336, 1 (2004).
[CrossRef]

Menzel, R.

V. Raab and R. Menzel, “Phase-locked array of 25 broad-area lasers,” Proc. SPIE 4629, 24 (2002).
[CrossRef]

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]

I. Hassiaoui, N. Michel, G. Bourdet, R. Mc Bride, M. Lecomte, O. Parillaud, M. Calligaro, M. Krakowski, and J.-P. Huignard, “Very compact external cavity diffraction-coupled tapered laser diodes,” Appl. Opt. 47(6), 746–750 (2008).
[CrossRef] [PubMed]

Monjardin, J. F.

H. J. Baker, J. F. Monjardin, P. Kneip, D. R. Hall, and R. McBride, “1.8 kW diode laser system for fibre-delivery using brightness-enhanced diode stacks and a novel final beam-shaper,” Proc. SPIE 6876, 68760W (2008).
[CrossRef]

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]

Nowak, K. M.

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]

Parillaud, O.

Raab, V.

V. Raab and R. Menzel, “Phase-locked array of 25 broad-area lasers,” Proc. SPIE 4629, 24 (2002).
[CrossRef]

Rubinsztein-Dunlop, H.

Sanchez-Rubio, A.

Seamans, J.

C. E. Hamilton, S. C. Tidwell, D. Meekhof, J. Seamans, N. Gitkind, and D. D. Lowenthal, “High-power laser source with spectrally beam-combined diode laser bars,” Proc. SPIE 5336, 1 (2004).
[CrossRef]

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.

Tidwell, S. C.

C. E. Hamilton, S. C. Tidwell, D. Meekhof, J. Seamans, N. Gitkind, and D. D. Lowenthal, “High-power laser source with spectrally beam-combined diode laser bars,” Proc. SPIE 5336, 1 (2004).
[CrossRef]

Villarreal, F. J.

Volodin, B. L.

Wang, D.

Appl. Opt. (4)

Appl. Phys. Lett. (1)

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]

Opt. Express (2)

Opt. Lett. (1)

Proc. SPIE (4)

V. Raab and R. Menzel, “Phase-locked array of 25 broad-area lasers,” Proc. SPIE 4629, 24 (2002).
[CrossRef]

B. Köhler, T. Brand, M. Haag, and J. Biesenbach, “Wavelength stabilized high-power diode laser modules,” in “High-Power Diode Laser Technology and Applications VII,” M.S. Zediker ed. Proc. SPIE 7198, 10 (2009).

C. E. Hamilton, S. C. Tidwell, D. Meekhof, J. Seamans, N. Gitkind, and D. D. Lowenthal, “High-power laser source with spectrally beam-combined diode laser bars,” Proc. SPIE 5336, 1 (2004).
[CrossRef]

H. J. Baker, J. F. Monjardin, P. Kneip, D. R. Hall, and R. McBride, “1.8 kW diode laser system for fibre-delivery using brightness-enhanced diode stacks and a novel final beam-shaper,” Proc. SPIE 6876, 68760W (2008).
[CrossRef]

Other (1)

N. Lichtenstein, Y. Manz, and P. Mauron, A. FiIy, S. Arlt, A. Thies, B. Schmidt, J. Muller, S. Pawlik, B. Sverdlov, and H. Harder, “Single mode emitter array laser bars for high-brightness applications,” IEEE 19th International Semiconductor Laser Conf., Matsue-shi, Japan, 2004, Conference Digest pp. 45–46.

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Figures (6)

Fig. 6
Fig. 6

Laser diode bar aligned with a slow-axis collimating lens array of bigger pitch.

Fig. 1
Fig. 1

Contour map of (a) the corrective phase-plate and (b) of the lens array measured with a profilometer; (c) Cross-section of the lens array taken at the centre of map (b).

Fig. 2
Fig. 2

Emitter resolved fast-axis far field pattern of (a) the FAC only bar and (b) the corrected bar. (c) Power in the bucket curves comparing the FAC-only and corrected cases.

Fig. 4
Fig. 4

Fast-axis pointing error along the bar -uncorrected (green points) and corrected (blue points). For comparison the corrected fast-axis divergence is 2.47 mR (5-95%).

Fig. 3
Fig. 3

(a) Far field beam profile of the bar corrected in fast-axis and collimated in both directions; (b) Power in the bucket (PTIB) in the slow-axis direction.

Fig. 5
Fig. 5

Slow-axis pointing error along the bar at 40A (red) and at 15A (blue). For comparison the slow-axis far-field divergence was 21.4 mrad (5-95%) in this experiment.

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