A 1.55-μm hybrid integrated wavelengthconverter module was fabricated using a two-channel spot-size converter integrated semiconductor optical amplifier (SS-SOA) on a planar-lightwave-circuit (PLC) platform. Clear eye opening and penalty-free wavelength conversion were obtained at 2.5Gb/s modulation with a wide wavelength difference of 46 nm. The module showed good characteristics including low...

SUMMARY Amplification characteristics of the signal and the noise in the semiconductor optical amplifier (SOA), without facet mirrors for the intensity modulated light, are theoretically analyzed and experimentally confirmed. We have found that the amplification factor of the temporarily varying intensity component is smaller than that of the continuous wave (CW) component, but increases up to ...

An all-optical UWB pulses generation and modulation scheme using cross phase modulation (XPM) effect of semiconductor optical amplifier (SOA) and DWDM-based multi-channel frequency discrimination is proposed and demonstrated, which has potential application in multiuser UWB-Over-Fiber communication systems. When a Gaussian pulse light and a wavelength-tunable CW probe light are together injecte...

Wavelength conversion based on the cross-polarization modulation (XPM) in a single semiconductor optical amplifier (SOA) has been numerically investigated by using the theoretical model in which the birefringence has been taken into account. The results show that the non-inverted and inverted wavelength conversion can be realized through selecting reasonably the parameters; there exit some diff...

Since the seventies of the past century the reversible logic has originated as an unconventional form of computing. It is new relatively in the area of extensive applications in quantum computing, low power CMOS, DNA computing, digital signal processing (DSP), nanotechnology, communication, optical computing, computer graphics, bio information, etc .Here we present and configure a new TAND gate...

We study the use of nonlinear semiconductor optical amplifier (SOA) for generating phase conjugate towards compensation distortions in short distance fiber transmission due to Kerr nonlinearity and chromatic dispersion coherent multi-carrier lightwave signals. experimentally demonstrate effectiveness SOA-based conjugator improve link budget with a 100 km standard single mode 20 GHz OFDM signals...

In this paper, we present a real and simulated study of frequency up mixing employing an electro-optical sampling semiconductor optical amplifier Mach–Zehnder interferometer (SOA–MZI) along with the differential modulation schema. The signal is generated by pulse clock (OPC) at fs= 19.5 GHz. quadratic phase shift keying (QPSK) intermediate (IF) fIF shifted to high frequencies nfs ± SOA–MZI outp...

1.1 SOAs as nonlinear elements in Mach-Zehnder Interferometers Although SOAs have been initially introduced as integrated modules mainly for optical amplification purposes, they have been widely used in all optical signal processing applications, like all-optical switching and wavelength conversion, utilizing the exhibited nonlinearities such as gain saturation, cross-gain (XGM) and cross-phase...

Wavelength conversion is very essential in wavelength division multiplexing (WDM) networks where blocking due to wavelength contention can be reduced to a good extent. We present a theoretical model to analyze the effect of intraband effects like spectral hole burning and carrier heating on wavelength conversion exploiting the cross-gain modulation (XGM) technique in a bulk semiconductor optica...

In this paper, we will report and characterize the impact of the nonlinear polarization rotation on the behavior of a wavelength converter based on cross-gain modulation effect in a semiconductor optical amplifier (SOA) at 40 Gbit/s. Nevertheless, we investigate and evaluate its performance as function of the intrinsic and extrinsic SOA parameters, such as the bias current, the signal format, t...