6 August 1998 Enhanced TOAD performance with negative frequency offset between signal and control picosecond pulses
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Abstract
A detailed numerical investigation has been undertaken of the operating characteristics of Terahertz Optical Asymmetric Demultiplexers (TOADs) devices subject to frequency detuned picosecond control and signal pulses, taking into account both gain saturation and nonlinear gain compression in the Semiconductor Optical Amplifier (SOA). It is shown that the output behaviour of TOADs exihibits significant differences depending on whether the signal and control pulses are at higher relative frequencies (positive detuning) or lower relative frequencies (negative detuning). The analysis indicates that negative frequency detuning can be used to achieve an enhanced output power in the switched region and a reduced width of switching window. Calculations are shown to be in good agreement with available experimental results.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
J. M. Tang, J. M. Tang, Keith Alan Shore, Keith Alan Shore, } "Enhanced TOAD performance with negative frequency offset between signal and control picosecond pulses", Proc. SPIE 3552, Fiber Optic Components and Optical Communication II, (6 August 1998); doi: 10.1117/12.318051; https://doi.org/10.1117/12.318051
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