Optical bit-pattern recognition by use of dynamic gratings in erbium-doped fiber
| Autor: | Douglas L. Butler, Julius Goldhar, J.S. Wey, Nicholas W. Rush, Geoffrey L. Burdge |
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| Rok vydání: | 2008 |
| Předmět: |
Materials science
Multi-mode optical fiber business.industry Physics::Optics Polarization-maintaining optical fiber Long-period fiber grating Graded-index fiber Atomic and Molecular Physics and Optics Optics Fiber Bragg grating Dispersion-shifted fiber business Plastic optical fiber Photonic-crystal fiber |
| Zdroj: | Optics letters. 22(23) |
| ISSN: | 0146-9592 |
| Popis: | We present a novel optical bit-pattern-recognition technique that uses erbium-doped fiber at room temperature. Counterpropagating beams write a patterned gain-depletion grating in pumped erbium-doped fiber. This grating, recorded in the erbium gain medium, can be used for correlation with other optical bit patterns. We have demonstrated correlation of arbitrary return-to-zero bit patterns of as many as 8 bits at 1 Gbit/s . Theory suggests that scaling to higher bit rates is feasible. |
| Databáze: | OpenAIRE |
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