An international field trial at 1.3 μm using an 800 km cascade of semiconductor optical amplifiers

Abstract

In the European ACTS-UPGRADE project an operational link between Madrid and Lisbon has been realised at 1.3pm using RZ transmission over a cascade of semiconductor optical ampliJiers in the installed network.

Increasing input power dynamic range of SOA by shifting the transparent wavelength of tunable optical filter

“…SOAs can be used for inline amplification in single or multichannel systems, as well. A number of multichannel or single-channel transmission experiments using SOA amplification have been reported [7]- [9]. However, to our knowledge, no 80-Gb/s or higher per-channel amplification in SOAs has been reported until now.…”

“…The short pulse source is a 10-GHz, 1560-nm erbium fiber ring laser (EFRL) that generates 2.3-ps full-width at half-maximum (FWHM) pulses. The SOA used in the experiment has a total length of 1200 m. It has an unsaturated fiber-to-fiber gain of 18 dB at 130 mA [6], [7]. After a TOF with a bandwidth of 1.5 nm, the optical pulse is detected by a sampling oscilloscope (SO) with a bandwidth of 32 GHz set by the photodiode, an optical spectrum analyzer (OSA), or a second-harmonic generation (SHG) autocorrelator.…”

Photonic Integrated Semiconductor Optical Amplifier Switch Circuits

“…To extend beyond 40Gb/s requires optical multiplexing. Here SOAs have been demonstrated for in-line amplification for multiwavelength transmission (Reid et al, 1998;Jennen et al, 1998;Sun et al, 1999). The early experiments operated the SOAs within the saturation regime, but later demonstrations in the linear regime with reduced crosstalk enable hundreds of Gbit/s WDM transmission .…”

Modeling and performance analysis of WDM transmission links employing semiconductor optical amplifiers

“…Recently, the SOA has generated more and more interest as a functional device in the area of long-haul optical transmission demonstrated by the results reported in [2]- [4]. We performed various simulations of single-channel and wavelength division multiplexing (WDM) systems to assess the system performance to be expected of such transmission systems when employing SOAs.…”