1 μs tunable delay using parametric mixing and optical phase conjugation in Si waveguides

School of Applied and Engineering Physics, Cornell University, Ithaca, NY 14853, USA.
Optics Express (Impact Factor: 3.49). 05/2009; 17(9):7004-10. DOI: 10.1364/OE.17.016029
Source: PubMed


We demonstrate continuously tunable optical delays as large as 1.1 micros range for 10 Gb/s NRZ optical signals based on four-wave mixing (FWM) process in silicon waveguide. The large delay range is made possible by a novel wavelength-optimized optical phase conjugation scheme, which allows for tunable dispersion compensation to minimize the residual group-velocity dispersion (GVD) for the entire tuning range.

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    • "The above motivations led to considerable research efforts on nonlinear silicon photonics in recent years [26] [27] [28] [29] [30]. Nonlinear effects such as SRS [67] [68] [69] [70] [71] [72] [73] [74] [75] [76] [77] [78] [79] [80] [81] [82] [83], self-and cross-phase modulation (SPM and XPM) [84] [85] [86] [87] [88] [89] [90] [91], fourwave mixing (FWM) [92] [93] [94] [95] [96] [97] [98] [99] [100] [101] [102], and supercontinuum generation [60, 61, 103–108] are actively investigated. The main focus is on the near-IR wavelength range, around the telecom window. "
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