Semiconductor optical amplifier pattern effect suppression using Lyot filter

All-optical logic gates using semiconductor optical amplifier assisted by optical filter

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All-optical logic gates using a semiconductor optical amplifier assisted by an optical filter

A simple all-optical logic device, composed of an SOA and an optical filter, is proposed. By utilizing optical filtering, multi-logic functions (AND, OR and XOR) are demonstrated at 10 Gb/s using the same setup, under different operation conditions. Simulations indicate that the device can operate at much higher bit rate. Introduction: All-optical logic gates have received considerable attentio...

All-Optical RF Filter Using Amplitude Inversion in a Semiconductor Optical Amplifier

We present an all-optical delay-line radio-frequency (RF) notch filter. The filter exploits cross-gain modulation in a homogeneously broadened laser medium to obtain a negative tap in an optically incoherent system. Applications including moving-target indication (MTI) in optically controlled radars are discussed.

Gbit=s wavelength conversion using semiconductor optical amplifier and optical bandpass filter

A wavelength converter is presented that is made out of a semiconductor optical amplifier and an optical bandpass filter. Error-free inverted wavelength conversion is demonstrated at a bitrate of 80 Gbit=s. This approach can be exploited at higher bitrates. A clear open eye indicating error-free wavelength conversion at 160 Gbit=s is also presented. This wavelength converter has a simple config...

Efficient Optical Phase modalation using A Semiconductor Optical Amplifier