Conversion of RZ-OOK to RZ-BPSK by XPM in a Passive AlGaAs Waveguide
| Autor: | W. Astar, Paveen Apiratikul, S. Kanakaraju, Jeremiah J. Wathen, Brice M. Cannon, J. V. Hryniewicz, Thomas E. Murphy, T. Mahmood, Christopher J. K. Richardson, Gary M. Carter |
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| Rok vydání: | 2011 |
| Předmět: |
Physics
business.industry Nonlinear optics Keying Waveguide (optics) Atomic and Molecular Physics and Optics Amplitude-shift keying Electronic Optical and Magnetic Materials Optics Modulation Electrical and Electronic Engineering business Phase modulation Sensitivity (electronics) Phase-shift keying |
| Zdroj: | IEEE Photonics Technology Letters. 23:1397-1399 |
| ISSN: | 1941-0174 1041-1135 |
| DOI: | 10.1109/lpt.2011.2160165 |
| Popis: | The conversion of data modulation format from 10-Gb/s return-to-zero on-off keying (RZ-OOK) to 10-Gb/s RZ binary phase-shift keying (RZ-BPSK) has been successfully carried out for the first time utilizing cross-phase modulation (XPM) in a passive AlGaAs waveguide. A 10-9-bit-error-rate (BER) preamplified receiver sensitivity gain of ≈ 1 dB was measured for the converted RZ-BPSK relative to baseline RZ-OOK, whereas a penalty of ≈ 2.7 dB relative to baseline RZ-BPSK is explained to be due to cross-absorption modulation induced by nondegenerate two-photon absorption (ND-TPA), as well as to an insufficient nonlinear phase shift. |
| Databáze: | OpenAIRE |
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