Rong Haisheng, Kuo Ying-Hao, Liu Ansheng, Paniccia Mario, Cohen Oded
Opt Express. 2006 Feb 6;14(3):1182-8. doi: 10.1364/oe.14.001182.
Efficient wavelength conversion via four-wave-mixing in silicon-on-isolator p-i-n waveguides has been realized. By reverse biasing the p-i-n diode structure formed along the silicon rib waveguide, the nonlinear absorption due to two photon absorption induced free carrier absorption is significantly reduced, and a wavelength conversion efficiency of -8.5 dB has been achieved in an 8 cm long waveguide at a pump intensity of 40 MW/cm2. A high-speed pseudo-random bit sequence data at 10 Gb/s rate is converted to a new wavelength channel in the C-band with clear open eye diagram and no waveform distortion. Conversion efficiency as functions of pump power, wavelength detuning, and bias voltages, have been investigated. For shorter waveguides of 1.6 cm long, a conversion bandwidth of > 30 nm was achieved.
通过绝缘体上硅p-i-n波导中的四波混频实现了高效的波长转换。通过对沿硅肋波导形成的p-i-n二极管结构进行反向偏置，由双光子吸收诱导的自由载流子吸收引起的非线性吸收显著降低，并且在泵浦强度为40 MW/cm2的8 cm长波导中实现了-8.5 dB的波长转换效率。10 Gb/s速率的高速伪随机比特序列数据被转换到C波段的一个新波长通道，眼图清晰张开且无波形失真。研究了转换效率与泵浦功率、波长失谐和偏置电压的函数关系。对于1.6 cm长的较短波导，实现了大于30 nm的转换带宽。
