Abstract

We present what to our knowledge is the first demonstration of self-pumped phase conjugation in a laser-pumped solid-state Rhodamine-6G dye saturable amplifier. Phase-conjugate energy reflectivity of as much as 2100% at 557 nm has been obtained.

© 2002 Optical Society of America

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References

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IEEE J. Quantum Electron. (1)

O. Wittler, D. Udaiyan, G. J. Crofts, K. S. Syed, and M. J. Damzen, �??Characterization of a distortion-corrected Nd:YAG laser with a self-conjugating loop geometry,�?? IEEE J. Quantum Electron. QE-35, 656 (1999
[CrossRef]

J. Ceram. Soc. Jpn. (1)

J. I. Zink, and B. S. Dunn, �??Photonic material by the sol-gel process,�?? J. Ceram. Soc. Jpn. 99, 878 (1991).
[CrossRef]

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

J. Phys. Chem. (1)

D. Avinar, D. Levy, and R. Reisfeld, �??The nature of the silica as reflected by spectral changes and enhanced photo-stability of trapped Rhodamine 6G,�?? J. Phys. Chem. 88, 5956 (1984).
[CrossRef]

Opt. Commun. (3)

G. R. Kumar, B. P. Singh, and K. K. Sharma, �??Optical phase conjugation in Rhodamine 6G doped boric acid glass,�?? Opt. Commun. 73, 81 (1989).
[CrossRef]

K. Divakara and K. K. Sharma, �??Dispersion of the induced optical nonlinearity in Rhodamine 6G doped boric acid glass,�?? Opt. Commun. 119, 139 (1995).

A. Minassian, G. J. Crofts, and M. J. Damzen, �??A tunable self-pumped phase conjugation laser using Ti:sapphire slab amplifiers,�?? Opt. Commun. 161, 338 (1999).
[CrossRef]

Opt. Lett. (5)

Proc. SPIE (1)

J. C. Altmann, R. E. Stone, F. Nishida, and B. Dunn, �??Dye-activated ORMOSILS for laser and optical amplifier,�?? in Sol-Gel Optics II, J. D. Mackenzie, ed., Proc. SPIE 1758, 507 (1995).
[CrossRef]

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Figures (5)

Fig. 1.
Fig. 1.

Experimental setup for self-pumped phase conjugation with double-pass geometry in a solid laser dye.

Fig. 2.
Fig. 2.

Experimental phase-conjugate reflectivity and output energy versus injected beam energy at (a) single-pass gain of 60 and (b) single-pass gain of 30.

Fig. 3.
Fig. 3.

Experimental far-field patterns of (a) injected beam, (b) injected beam with the phase aberrator, and (c) phase conjugation.

Fig. 4.
Fig. 4.

Frequency spectra of injected beam and phase-conjugate output from self-pumped phase-conjugate mirror.

Fig. 5.
Fig. 5.

Temporal pulse forms of phase conjugation, injected beam, and external gain-pump laser.

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