Spectroscopic investigations reveal the presence of a fast quenching process in erbium-doped aluminum oxide waveguides. We quantify the percentage of quenched ions and make predictions about the amplifier performance. Optical amplifiers; integrated optics materials; fast quenching processes; aluminum oxide

In this paper, we propose a method to mitigate the temporal power transients arising from Erbium doped fiber amplifiers (EDFAs) on packeted/bursty scenario. The technique, applicable on hybrid WDM/TDMPON for extended reach, is based on a low power clamping provided by a distributed feedback (DFB) laser and a fiber Bragg grating (FBG). An improvement in the data signal Q factor was achieved keep...

A simple and robust system is presented to generate wavelength-tunable optical short pulses by use of two gain-switched Fabry-Perot laser diodes in a mutual pulse injection-seeding scheme. The operating wavelength of the optical pulses is flexibly selected by adjustment of a tunable filter, and its intensity is enhanced with an erbium-doped fiber amplifier. The side-mode suppression ratio achie...

An efficient full spectrum (1480–1600 nm) largesignal transient dynamic model of an erbium-doped fiber amplifier (EDFA) is developed. A technique to speed up the simulation by a factor of 1000 using artificial delay lines based on the transmission-line model (TLM) is presented. Simulations and experimental results show the delay line method is not detrimental to the accuracy of the model. The e...

A combined system to support simultaneous two way mutual pulse injection-seeding and active mode-locking schemes for wavelength tunable optical short pulse generation is presented. The system consists of two gain-switched Fabry-Pérot laser diodes, a bidirectional erbium-doped fiber amplifier, and a tunable optical filter and a coupler. The optical pulses generated exhibits a good stability, a h...

In this paper, I reviewed comprehensively the structure and operation of closed-loop IFOGs, Feedback Erbium-doped fiber amplifier (EFDA) FOGs, called FE-FOG. The procedure of finding the Sagnac shift for closed-loop IFOG has been studied. The signal processing in the closed-loop IFOG was simulated using PSCAD software. In the closed-loop IFOG, the phase shift was derived through frequent use of...

In this paper, a unified theory for the newly developed optical burst-mode receiver is presented. Based on this theory, an analysis of the performance of the receiver is given both theoretically and experimentally. The theoretical model agrees well with the experimental results. This theory can quantitatively explain the bit error rate (BER) performance of burst-mode receivers. Several potentia...

AbstractWith the advent of technology Wavelength Division Multiplexing (WDM) is always an area of interest in the field of optical communication. When combined with Erbium Doped Fiber Amplifier (EDFA), it provides high data transmission rate and low attenuation. But due to fiber non-linearity such as Self Phase Modulation (SPM) and Cross Phase Modulation (XPM) the system performance has degrade...

A mid-IR amplifier consisting of a tapered chalcogenide fiber coupled to an Er3þ-doped chalcogenide microsphere has been optimized via a particle swarm optimization (PSO) approach. More precisely, a dedicated three-dimensional numerical model, based on the coupled mode theory and solving the rate equations, has been integrated with the PSO procedure. The rate equations have included the main tr...

H.: 'Overall theory 01 the erbiumdoped fibre amplifier', submitted for publication to IEEE J. Lightwave Technol., Special Issue on Optical Amplifiers 10 MARCEROU, J . F., FEVRIER, H., AUGE, I., and BOUSSELET, P . . 'A general theoretical approach describing the complete behavior of the erbium-doped fibre amplifier', to appear in SPIE Proc. vol. 1373, accepted paper 18 lo SPIE'90, San Jose (1990)