All-optical phase-preserving amplitude-regeneration technology based on bidirectional orthogonal-pumped semiconductor optical amplifier configuration

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.

All-Optical 2R Regeneration Using a Non-Linear Vertical Cavity Semiconductor Optical Amplifier

All-optical 2R logic regeneration is demonstrated using a vertical cavity semiconductor optical amplifier. The optical switching threshold is 1 μW, with 10 dB gain and >6:1 (8dB) extinction ratio. Performance limits are also discussed. ©2003 Optical Society of America OCIS codes: (190.1450) Bistability; (200.4660) Optical Logic; (250.5980) Semiconductor Optical Amplifiers; (230.4320) Nonlinear ...

All Optical Parametric Frequency Conversion Based on Cross Gain Modulation on a Reflective Semiconductor Optical Amplifier

This paper reports a detailed experimental study of the wavelength conversion dynamics using cross-gain modulation in reflective semiconductor optical amplifiers. The effect of pump and probe powers on the operating performance in terms of signal to noise ratio was experimentally investigating. The variation of others performance indicators such as extinction ratio, timing jitter and eye openin...

Efficient Optical Phase modalation using A Semiconductor Optical Amplifier

All-Optical Logic Gates Using Semiconductor Optical-Amplifier-Based Devices and Their Applications

By using two main effects of cross-gain modulation and cross-phase modulation in semiconductor optical amplifier-based devices, many logic functions of logic AND, OR, XOR, NOR and XNOR are successfully demonstrated. Also, complex systems including all-optical half and full adders in a combination of multiple logic functions are successfully demonstrated. These functions will provide not only in...