Design of high power pump lasers for C-band EDFA amplifiers

Proceedings of 2002 4th International Conference on Transparent Optical Networks (IEEE Cat. No.02EX551) Pub Date : 2002-08-07 DOI:10.1109/ICTON.2002.1007876

S. Sujecki, L. Borruel, J. Wykes, T. Benson, P. Sewell, P. Moreno, D. Rodríguez, I. Esquivias, E. Larkins

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引用次数: 2

Abstract

High performance fibre EDFA amplifiers for dense WDM systems require efficient and economic pumping devices. One way of providing high pumping power to an EDFA amplifier at low cost is to use tapered semiconductor lasers. The development of a software package for the design and optimisation of these high power tapered laser diodes is described. Cold cavity modelling enables the influence of the laser geometry on the overall performance of the cavity to be investigated along with the beam spoiler design. A 2.5D hot cavity laser model also takes into account effects such as spatial hole burning, carrier diffusion and current spreading. This enables detailed investigation of the laser design and the factors limiting beam quality to be carried out. Our present research aims to incorporate a 3D model of the optical propagation into the laser model using wide-angle FD-BPM schemes, novel finite difference techniques, and modem matrix solvers to minimize memory usage and calculation time.

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用于c波段EDFA放大器的高功率泵浦激光器设计

用于密集波分复用系统的高性能光纤EDFA放大器需要高效和经济的泵浦装置。以低成本为EDFA放大器提供高泵浦功率的一种方法是使用锥形半导体激光器。本文描述了一个用于设计和优化这些高功率锥形激光二极管的软件包的开发。冷腔建模使激光几何形状对腔整体性能的影响与光束扰流器设计一起得到研究。2.5D热腔激光模型还考虑了空间孔燃烧、载流子扩散和电流扩散等效应。这使得激光器设计和限制光束质量的因素的详细调查得以进行。我们目前的研究旨在利用广角FD-BPM方案、新颖的有限差分技术和现代矩阵求解器将光学传播的三维模型整合到激光模型中，以最大限度地减少内存使用和计算时间。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Proceedings of 2002 4th International Conference on Transparent Optical Networks (IEEE Cat. No.02EX551)

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