All Optical Generation and Processing of IR UWB Signals

Quantum dot-semiconductor optical amplifiers (QD-SOA) attracted strong interest for applications in optical communications and in all-optical signal processing due to their high operation rate, strong nonlinearity, small gain recovery time of about few picoseconds, broadband gain, low injection current and low noise figure (NF). In this chapter, we present the theoretical investigation of the gain recovery time acceleration in DQ SOA; the specific features of the cross gain modulation (XGM) in QD-SOA; the influence of the optical injection on the dynamics of QD-SOA based on the QD in a well (QDWELL) structure. We describe the following applications of QD-SOA: the all-optical ultrawideband (UWB) pulse generation based on the Mach-Zehnder interferometer (MZI) with a QD-SOA; the ultra-fast all-optical signal processor based on QD-SOA-MZI; the ultra-fast all-optical memory based on QD-SOA. The contents of the chapter are mainly based on the original results.

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All Optical Generation and Processing of IR UWB Signals

Cited by 2 publications

References 33 publications

High Performance Analog Optical Links Based on Quantum Dot Devices for UWB Signal Transmission

High Performance Analog Optical Links Based on Quantum Dot Devices for UWB Signal Transmission

Quantum Dot-Semiconductor Optical Amplifiers (QD-SOA): Dynamics and Applications

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