Abstract

The polarization dynamics of laser subjected to weak optical feedback from birefringence external cavity are studied theoretically and experimentally. It is found that polarization flipping with hysteresis is induced by birefringence feedback, and the intensities of two eigenstates are both modulated by external cavity length. The variations of hysteresis loop and duty ratios of two eigenstates in one period of intensity modulation with phase differences of birefringence element in external cavity are observed. When the phase difference is п/2, the two eigenstates will equally alternatively oscillate, and the width of hysteresis loop is the smallest.

© 2005 Optical Society of America

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References

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Am. J. Phys. (1)

T. H. Peek, P. T. Bolwijn and T. J. Alkemade, �??Axial mode number of gas lasers from moving-mirror experiments,�?? Am. J. Phys. 35, 820-831 (1967).
[CrossRef]

Appl. Opt. (1)

Appl. Phys. Lett. (1)

K. Panajotov, M. Arizaleta, M. Camarena, H. Thienpont, H. J. Unold, J. M. Ostermann and R. Michalzik, �??Polarization switching induced by phase change in extremely short external cavity vertical-cavity surface-emitting lasers,�?? Appl. Phys. Lett. 84, 2763-2765 (2004).
[CrossRef]

Chin. Phys. Lett. (1)

L. G. Fei, S. L. Zhang and X. J. Wan, �??Influence of optical feedback from birefringence external cavity on intensity tuning and polarization of laser,�?? Chin. Phys. Lett. 21, 1944-1947 (2004).

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

Opt. Comm. (1)

J. Houlihan, L. Lewis and G. Huyet, �??Feedback induced polarization switching in vertical cavity surface emitting lasers,�?? Opt. Comm. 232, 391-397 (2004).

Opt. Lett. (1)

Phys. Rev. (1)

J. Kannelaud and W. Culshaw, �??Coherence effects in gaseous laser with axial magnetic field. II. Experimental,�?? Phys. Rev. 141, 237-245 (1966).
[CrossRef]

Phys. Rev. A (1)

G. Ropars, A. L. Floch and R. L. Naour, �??Polarization control mechanisms in vectorial bistable lasers for one-frequency systems,�?? Phys. Rev. A 46, 623-640 (1992).
[CrossRef]

Phys. Rev. Lett. (2)

G. Stephan and D. Hugon, �??Light polarization of a quasi-isotropic laser with optical,�?? Phys. Rev. Lett. 55, 703-706 (1985).
[CrossRef]

A. L. Floch, G. Ropars, J. M. Lenornamd and R. L. Naour, �??Dynamics of laser eigenstates,�?? Phys. Rev. Lett. 52, 918-921 (1984).
[CrossRef]

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