Tanemura, T Lee, JH Wang, DX Katoh, K Kikuchi, K 2024-01-21T03:37:32Z 2024-01-21T03:37:32Z 2021-09-01 2006-02-20 1094-4087 https://pubs.kist.re.kr/handle/201004/135748 A circular-birefringence highly nonlinear fiber (CB-HNLF) with the nonlinear coefficient of 12/W/km is fabricated successfully by twisting a commercial silica-based highly nonlinear fiber. Using the cross-phase modulation in a 100-m-long CB-HNLF and subsequent optical filtering, we realize error-free pulsewidth-maintaining wavelength conversion of 160Gb/s signal with only 0.7-dB polarization sensitivity. In addition to the simplicity and stability, the demonstrated scheme features an ultrafast repolarizing functionality, where the degree-of-polarization of the input signal is restored in an all-optical manner. These advantages make the scheme highly attractive to be employed in the future photonic networks. (c) 2006 Optical Society of America. English OPTICAL SOC AMER CROSS-PHASE MODULATION DISPERSION-SHIFTED FIBER TWISTED FIBER CONVERSION XPM Polarization-insensitive 160-Gb/s wavelength converter with all-optical repolarizing function using circular-birefringence highly nonlinear fiber Article 10.1364/OE.14.001408 1 OPTICS EXPRESS, v.14, no.4, pp.1408 - 1412 OPTICS EXPRESS 14 4 1408 1412 scie scopus 000235424400009 Optics Optics Article CROSS-PHASE MODULATION DISPERSION-SHIFTED FIBER TWISTED FIBER CONVERSION XPM