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Optics Letters

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  • Vol. 21, Iss. 16 — Aug. 15, 1996
  • pp: 1211–1213

Experimental cascaded operation of low-birefringence nonlinear-optical loop mirrors

X. D. Cao, B. C. Barnett, K. H. Ahn, Y. Liang, G. R. Williams, M. Vaziri, and M. N. Islam  »View Author Affiliations


Optics Letters, Vol. 21, Issue 16, pp. 1211-1213 (1996)
http://dx.doi.org/10.1364/OL.21.001211


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Abstract

We experimentally demonstrate the operation of a low-birefringence (low-bi) nonlinear-optical loop mirror (NOLM) that has the advantages of low switching energy, tolerance to timing jitter, and cascadability. Because cascading two all-optical logic gates is an important step toward high-speed optical signal processing and header processing in time-division-multiplexed networks, we also demonstrate the cascaded operation of two low-bi NOLM’s. Using a passively mode-locked fiber laser that produces 450-fs pulses at a wavelength of 1.55 μm, we achieve a 10.7:1 switching contrast ratio and a 2.7-pulse-widths-wide timing window after the cascaded gates. The results agree well with theoretical predictions and confirm the advantages of the long interaction length associated with orthogonally polarized pulses in low-bi (Δn ~ 3.0 × 10−6) polarization-maintaining fiber.

© 1996 Optical Society of America

History
Original Manuscript: February 12, 1996
Published: August 15, 1996

Citation
X. D. Cao, B. C. Barnett, K. H. Ahn, Y. Liang, G. R. Williams, M. Vaziri, and M. N. Islam, "Experimental cascaded operation of low-birefringence nonlinear-optical loop mirrors," Opt. Lett. 21, 1211-1213 (1996)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-21-16-1211


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