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首页> 外文期刊>Optical engineering >Achieving high gain using Er-Yb codoped waveguide/fiber optical parametric hybrid amplifier for dense wavelength division multiplexed system
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Achieving high gain using Er-Yb codoped waveguide/fiber optical parametric hybrid amplifier for dense wavelength division multiplexed system

机译:使用Er-Yb共掺杂波导/光纤光参量混合放大器实现高增益,用于密集波分复用系统

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摘要

A hybrid optical amplifier is proposed using a combination of Er-Yb codoped waveguide amplifier (EYDWA) and fiber optical parametric amplifier (FOPA). The scheme is investigated for 100x40 Gb/s dense wavelength division multiplexed (DWDM) system at 0.2-nm channel spacing. The parameters are optimized to achieve a flat gain of >30.6 dB, with a gain ripple of 2.67 dB. This is obtained over a wavelength range of 1542 to 1562 nm at-10-dBm optimum input power per channel, without using any costly gain flattening scheme. For higher input powers up to 10 dBm, an increase in gain ripple from 2.67 to 6.13 dB is observed. The gain ripple of 2.67 dB of the proposed EYDWA-dual pump FOPA configuration is also much better than 10.32 dB for the hybrid EYDWA-single pump FOPA. The obtained high and flat gain, along with the low noise figure, confirms the usefulness of the proposed amplifier for applications in long-haul DWDM systems.
机译:提出了一种混合光放大器,它结合了Er-Yb共掺杂波导放大器(EYDWA)和光纤参量放大器(FOPA)。该方案针对0.2nm通道间隔的100x40 Gb / s密集波分复用(DWDM)系统进行了研究。对参数进行了优化,以实现> 30.6 dB的平坦增益和2.67 dB的增益纹波。这是在1542至1562 nm的波长范围内以每通道10 dBm的最佳输入功率获得的,而无需使用任何昂贵的增益平坦化方案。对于高达10 dBm的更高输入功率,可以观察到增益纹波从2.67 dB增加到6.13 dB。提议的EYDWA双泵FOPA配置的2.67 dB的增益纹波也比混合EYDWA单泵FOPA的10.32 dB更好。所获得的高和平坦增益以及低噪声系数,证实了所建议的放大器在长距离DWDM系统中的应用。

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