Abstract

The influence of structured delayed optical feedback (SDOF) on a broad area laser is investigated experimentally. SDOF is realized with a miniature-sized convex external mirror. The setup takes into account the small time scales involved in semiconductor laser dynamics by employing short external resonator lengths. Careful choice of the feedback parameters leads to a narrow single-lobe farfield even at high pump currents. The experimental results confirm earlier microscopic dynamic simulations by O. Hess et al. predicting that SDOF might be capable of stabilizing the emission of broad area lasers.

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References

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  1. H. Adachihara, O. Hess, E. Abraham, J. V. Moloney, "Spatio-temporal chaos in broad-area semi-conductor laser," J. Opt. Soc. Am. B 10, 496-506 (1993).
    [CrossRef]
  2. O. Hess, S. W. Koch, J. V. Moloney, "Filamentation and beam propagation in broad-area semi-conductor lasers," IEEE J. Quantum Electron. 31, 35-43 (1995).
    [CrossRef]
  3. J. R. Marciante, G. P. Agrawal, "Nonlinear mechanism of filamentation in broad area semiconductor lasers," IEEE J. Quantum Electron. 32, 590-596 (1996).
    [CrossRef]
  4. O. Hess, T. Kuhn, "Spatio-temporal dynamics of semiconductor lasers: Theory, modeling and analysis," Prog. Quant. Electr. 20, 85-179 (1996).
    [CrossRef]
  5. I. Fischer, O. Hess, W. Elsa�er, E. Gobel, "Complex spatio-temporal dynamics in the nearfield of a broad-area semiconductor laser," Europhys. Lett. 35, 579-584 (1996).
    [CrossRef]
  6. O. Hess, T. Kuhn, "Maxwell-Bloch equations for spatially inhomogeneous semiconductor lasers II: Spatio-temporal dynamics," Phys. Rev. A 54, 3360-3368 (1996).
    [CrossRef] [PubMed]
  7. E. Gehrig, O. Hess, "Nonequilibrium spatio-temporal dynamics of the Wigner-distributions in broad-area semiconductor lasers," Phys. Rev. A 57, 4877-4888 (1998).
    [CrossRef]
  8. C. Simmendinger, M. Munkel, O. Hess, "Controlling complex temporal and spatio-temporal dynamics in semiconductor lasers," Chaos, Solitons & Fractals 10, 851-864 (1999).
  9. A. Hard , W. Streifer, M. Osinski, "Influence of external mirror on antireflection-coated phased-array semiconductor lasers," Appl. Phys. Lett. 49, 185-187 (1986).
    [CrossRef]
  10. C. J. Chang-Hasnain, D. F. Welch, D. R. Scifres, W. Streifer, J. R. Whinnery, A. Dienes, R. D. Burnham, "Diffraction-limited emission from a diode laser array in an apertured graded-index lens external cavity," Appl. Phys. Lett. 49, 614-616 (1986).
    [CrossRef]
  11. J. Yaeli, W. Streifer, D. R. Scifres, P. S. Cross, R. L. Thornten, R. D. Burnham, "Array mode selection utilizing an external cavity configuration," Appl. Phys. Lett. 47, 89-91 (1985).
    [CrossRef]
  12. J. Salzman, T. Venkatesan, R. Lang, M. Mittelstein, A. Yariv, "Unstable resonator cavity semi-conductor lasers," Appl. Phys. Lett. 46, 218-220 (1985).
    [CrossRef]
  13. K. Shigihara, Y. Nagai, S. Kakimoto, K. Ikeda, "Achieving broad-area laser diodes with high out-put power and single-lobed far-field patterns in the lateral direction by loading a modal reflector," IEEE J. Quantum Electron. 30, 168 -1689 (1994).
    [CrossRef]
  14. D. H. DeTienne, G. R. Gray, G. P. Agrawal, D. Lenstra, "Semiconductor laser dynamics for feedback from a finite-penetration-depth phase-conjugated mirror," IEEE J. Quantum Electron. 33, 838-844 (1997).
    [CrossRef]
  15. J. P. Hohimer, G. R. Hadle , A. Owyoung, "Mode control in broad-area diode lasers by thermally induced lateral index tailoring," Appl. Phys. Lett. 52, 260- 262 (1988).
    [CrossRef]
  16. S. Wolff, D. Messerschmidt, H. Fouckhardt, "Fourier-optical selection of transverse modes in broad area lasers," Opt. Express 5, 2- 7 (1999), http://www.opticsexpress.org/oearchive/source/9357.htm.
    [CrossRef] [PubMed]
  17. Y. Champagne, S. Mailhot, N. McCarthy, "Numerical procedure for the lateral-mode analysis of broad-area semiconductor lasers with external cavity," IEEE J. Quantum Electron. 31, 795-810 (1995).
    [CrossRef]
  18. C. Simmendinger, D. Preier, O. Hess, "Stabilization of chaotic spatiotemporal filamentation in large broad area lasers by spatially structured optical feedback," Opt. Express 5, 48-54 (1999), http://www.opticsexpress.org/oearchive/source/9581.htm.
    [CrossRef] [PubMed]
  19. AR-2 60-C, Spectra Diode Labs Inc.
  20. S. Wolff, D. Messerschmidt, H. Fouckhardt, "Intracavity Fourier-optical transverse mode selection in an AlGaInP broad area laser," Proceedings of the SPIE 3611, 286-296 (1999).
    [CrossRef]

Other (20)

H. Adachihara, O. Hess, E. Abraham, J. V. Moloney, "Spatio-temporal chaos in broad-area semi-conductor laser," J. Opt. Soc. Am. B 10, 496-506 (1993).
[CrossRef]

O. Hess, S. W. Koch, J. V. Moloney, "Filamentation and beam propagation in broad-area semi-conductor lasers," IEEE J. Quantum Electron. 31, 35-43 (1995).
[CrossRef]

J. R. Marciante, G. P. Agrawal, "Nonlinear mechanism of filamentation in broad area semiconductor lasers," IEEE J. Quantum Electron. 32, 590-596 (1996).
[CrossRef]

O. Hess, T. Kuhn, "Spatio-temporal dynamics of semiconductor lasers: Theory, modeling and analysis," Prog. Quant. Electr. 20, 85-179 (1996).
[CrossRef]

I. Fischer, O. Hess, W. Elsa�er, E. Gobel, "Complex spatio-temporal dynamics in the nearfield of a broad-area semiconductor laser," Europhys. Lett. 35, 579-584 (1996).
[CrossRef]

O. Hess, T. Kuhn, "Maxwell-Bloch equations for spatially inhomogeneous semiconductor lasers II: Spatio-temporal dynamics," Phys. Rev. A 54, 3360-3368 (1996).
[CrossRef] [PubMed]

E. Gehrig, O. Hess, "Nonequilibrium spatio-temporal dynamics of the Wigner-distributions in broad-area semiconductor lasers," Phys. Rev. A 57, 4877-4888 (1998).
[CrossRef]

C. Simmendinger, M. Munkel, O. Hess, "Controlling complex temporal and spatio-temporal dynamics in semiconductor lasers," Chaos, Solitons & Fractals 10, 851-864 (1999).

A. Hard , W. Streifer, M. Osinski, "Influence of external mirror on antireflection-coated phased-array semiconductor lasers," Appl. Phys. Lett. 49, 185-187 (1986).
[CrossRef]

C. J. Chang-Hasnain, D. F. Welch, D. R. Scifres, W. Streifer, J. R. Whinnery, A. Dienes, R. D. Burnham, "Diffraction-limited emission from a diode laser array in an apertured graded-index lens external cavity," Appl. Phys. Lett. 49, 614-616 (1986).
[CrossRef]

J. Yaeli, W. Streifer, D. R. Scifres, P. S. Cross, R. L. Thornten, R. D. Burnham, "Array mode selection utilizing an external cavity configuration," Appl. Phys. Lett. 47, 89-91 (1985).
[CrossRef]

J. Salzman, T. Venkatesan, R. Lang, M. Mittelstein, A. Yariv, "Unstable resonator cavity semi-conductor lasers," Appl. Phys. Lett. 46, 218-220 (1985).
[CrossRef]

K. Shigihara, Y. Nagai, S. Kakimoto, K. Ikeda, "Achieving broad-area laser diodes with high out-put power and single-lobed far-field patterns in the lateral direction by loading a modal reflector," IEEE J. Quantum Electron. 30, 168 -1689 (1994).
[CrossRef]

D. H. DeTienne, G. R. Gray, G. P. Agrawal, D. Lenstra, "Semiconductor laser dynamics for feedback from a finite-penetration-depth phase-conjugated mirror," IEEE J. Quantum Electron. 33, 838-844 (1997).
[CrossRef]

J. P. Hohimer, G. R. Hadle , A. Owyoung, "Mode control in broad-area diode lasers by thermally induced lateral index tailoring," Appl. Phys. Lett. 52, 260- 262 (1988).
[CrossRef]

S. Wolff, D. Messerschmidt, H. Fouckhardt, "Fourier-optical selection of transverse modes in broad area lasers," Opt. Express 5, 2- 7 (1999), http://www.opticsexpress.org/oearchive/source/9357.htm.
[CrossRef] [PubMed]

Y. Champagne, S. Mailhot, N. McCarthy, "Numerical procedure for the lateral-mode analysis of broad-area semiconductor lasers with external cavity," IEEE J. Quantum Electron. 31, 795-810 (1995).
[CrossRef]

C. Simmendinger, D. Preier, O. Hess, "Stabilization of chaotic spatiotemporal filamentation in large broad area lasers by spatially structured optical feedback," Opt. Express 5, 48-54 (1999), http://www.opticsexpress.org/oearchive/source/9581.htm.
[CrossRef] [PubMed]

AR-2 60-C, Spectra Diode Labs Inc.

S. Wolff, D. Messerschmidt, H. Fouckhardt, "Intracavity Fourier-optical transverse mode selection in an AlGaInP broad area laser," Proceedings of the SPIE 3611, 286-296 (1999).
[CrossRef]

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Figures (4)

Fig. 1.
Fig. 1.

Schematic drawing of the setup for structured delayed optical feedback (SDOF) control (left: top view, right: side view). The emitted light after a characteristic delay time is structurally altered fed back into the active layer. SDOF acts as a low pass spatial filter.

Fig. 2.
Fig. 2.

Measured nearfield (left), farfield (right) intensity distribution at different distances L with r̃=1 mm at a pump current of Ip=3 I th ; L=La =1200 µm, Lb =1400µm, Lc =1600µm.

Fig. 3.
Fig. 3.

Measured nearfield (left), farfield (right) intensity distribution at different distances L with r̃=0.5 mm at a pump current of I p =2 I th using a micro-cylindrical lens for fast axis collimation; L 1=1870 µm, L 2=2370µm, L 3=3370 µm.

Fig. 4.
Fig. 4.

Measured nearfield (left), farfield (right) intensity distribution at different pump currents of 1.0 I th up to 3.0 I th (pump currents are noted at top right in the movie) at a distance L=2370µm and a convex mirror with radius of r̃=0.5 mm (movie file size is 73k bytes).

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