Optical network based on wavelength-division-multiplexing (WDM) technology will be a most active research topic in the 21st century. This paper describes a WDM multiple-wavelength transmitter and several key corresponding devices for optical network, including ASE spectrum-sliced multiplewavelength optical source, optical add/drop multiplexer (OADM), semiconductor optical amplifier (SOA), as we...

We demonstrate 10Gbit/s operation of two different types of monolithic photocurrent driven wavelength converters (PD-WC). These photonic integrated circuits use a Semiconductor Optical Amplifier (SOA)-PIN photodetector receiver to drive an Electro-absorption (EA), or Mach-Zehnder (MZ) modulator that is integrated with a SGDBR tunable laser. We demonstrate improvements in optical bandwidth, inse...

An all-optical AND gate based on optically induced nonlinear polarization rotation of a probe light in a bulk semiconductor optical amplifier is realized at a bit rate of 2.5Gbit/s. By operating the AND gate in an up and inverted wavelength conversion scheme, the extinction ratio is improved by 8dB compared with previously published work.

We present an actively mode-locked fiber ring laser that uses a single active semiconductor optical amplifier device to provide both gain and gain modulation from an external optical pulse train. The laser source generated 4.3-ps pulses at 20 GHz over a 16-nm tuning range and is stable against environmental changes and simple to build.

A model is reported allowing one to investigate the TCP/IP performance of a Semiconductor Optical Amplifier (SOA) base switch with 10x10Gbps wavelength striped traffic. Bit Error Rate measurements and Packet Error Rate equivalences were assessed to demonstrate TCP throughput analysis in a cascaded SOA for an optical link.

Semiconductor laser amplifiers have been subject of great interest for several years now. Travelling wave semiconductor laser amplifiers have recently been implemented in optical fibre communication systems as optical repeaters and optical preamplifiers. Automatic gain control (AGC) of laser amplifiers is required in more reliable optical communication systems to compensate for the effect relat...

Higher data throughput in optical packet switched interconnection networks can be achieved by minimizing the guard times through faster transition of the switching element. A hybrid integration of a semiconductor optical amplifier with its current driver is presented, which exhibits over 40 % faster transition time compared to current commercial devices.

We present an all-optical label processor based on selfpolarization rotation in a semiconductor optical amplifier. The operation principle is experimentally demonstrated. The results show a label-andpayload-suppression ratio higher than 20 dB and clear synchronization pulses for further processing. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 46: 453–454, 2005; Published online in ...

In this paper we have numerically analyzed terahertzrange wavelength conversion using nondegenerate four wave mixing (NDFWM) in a SOA integrated DFB laser (experiments reported both in MIT electronics and Fujitsu research laboratories). For analyzing semiconductor optical amplifier (SOA), we use finitedifference beam propagation method (FDBPM) based on modified nonlinear SchrÖdinger equation an...

We study the limiting-amplification capability of a saturated Semiconductor Optical Amplifier (SOA) followed by an optical band-pass filter. We experimentally demonstrate that this simple optical circuit can be effectively exploited to realize a low-power optical limiter for amplitude-modulated pulse trains at multi-GHz repetition rate. We report very large amplitude-modulation-reduction factor...