Ultrafast and bias-free all-optical wavelength conversion using III-V-on-silicon technology

作者：Kumar Rajesh^*; Spuesens Thijs; Mechet Pauline; Kumar Pragati; Raz Oded; Olivier Nicolas; Fedeli Jean Marc; Roelkens Gunther; Baets Roel; Van Thourhout Dries; Morthier Geert

来源：Optics Letters, 2011, 36(13): 2450-2452.

DOI：10.1364/OL.36.002450

Using a 7.5 mu m diameter disk fabricated with III-V-on-silicon fabrication technology, we demonstrate bias-free all-optical wavelength conversion for non-return-to-zero on-off keyed pseudorandom bit sequence (PRBS) data at the speed of 10 Gbits/s with an extinction ratio of more than 12 dB. The working principle of such a wavelength converter is based on free-carrier-induced refractive index modulation in a pump-probe configuration. We believe it to be the first bias-free on-chip demonstration of all-optical wavelength conversion using PRBS data. All-optical gating measurements in the pump-probe configuration with the same device have revealed that it is possible to achieve wavelength conversion beyond 20 Gbits/s.

• 出版日期2011-7-1
• 单位中国地震局