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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 14, Iss. 5 — May. 1, 1997
  • pp: 1228–1236

Cascadability and functionality of all-optical low-birefringent nonlinear optical loop mirror: experimental demonstration

K. H. Ahn, X. D. Cao, Y. Liang, B. C. Barnett, S. Chaikamnerd, and M. N. Islam  »View Author Affiliations


JOSA B, Vol. 14, Issue 5, pp. 1228-1236 (1997)
http://dx.doi.org/10.1364/JOSAB.14.001228


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Abstract

We verify both experimentally and theoretically the cascadability and the Boolean complete functionality of the low-birefringent nonlinear optical loop mirror (low-bi NOLM) operating with all inputs at the same wavelength. We achieve a low switching energy by using a low-birefringent (Δn3.5×10-6), polarization-maintaining fiber to achieve a longer interaction length between two orthogonally polarized pulses. We experimentally demonstrate switching in the cascaded operation of two low-bi NOLM's using picosecond pulses from an erbium-doped fiber laser. This has the potential to have a bit rate of 100 Gb/s. After the two cascaded low-bi NOLM's, the performance is a peak switching contrast of 36:1 and a timing window of 1.7 pulse widths with a switching energy of 9 pJ. In addition, we demonstrate the and and the xor/not operations with the low-bi NOLM showing Boolean completeness. The and operation has a switching contrast of 84.5:1, and the xor/not has a switching contrast of 11.5:1. Finally, we study the gate numerically and find good agreement between experiments and simulations.

© 1997 Optical Society of America

Citation
K. H. Ahn, X. D. Cao, Y. Liang, B. C. Barnett, S. Chaikamnerd, and M. N. Islam, "Cascadability and functionality of all-optical low-birefringent nonlinear optical loop mirror: experimental demonstration," J. Opt. Soc. Am. B 14, 1228-1236 (1997)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-14-5-1228

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