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Continuous-wave parametric amplification in bismuth-oxide fibers

机译：氧化铋纤维的连续波参量放大

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摘要

We have investigated the suitability of highly-nonlinear bismuth-oxide fibers for obtaining net gain by continuous-wave one-pump parametric amplification. The high fiber attenuation (of the order of 2 dB/m) requires the use of fibers that are just a few meters long, and pump powers of the order of several watts. While these fibers have a relatively high SBS threshold compared to silica fibers, they still require substantial pump broadening for SBS suppression. The fibers have significant linear birefringence An = 2 × 10~(-5), which leads to the creation of narrow gain regions away from the pump. We have used this feature for successfully implementing a novel type of wavelength division multiplexing (WDM) demultiplexer with intrinsic gain.
机译：我们研究了高度非线性的氧化铋纤维通过连续波单泵参量放大获得净增益的适用性。较高的光纤衰减（约为2 dB / m）要求使用仅几米长的光纤，并且泵浦功率约为几瓦。尽管与石英纤维相比，这些纤维具有相对较高的SBS阈值，但它们仍需要大量泵宽来抑制SBS。光纤具有显着的线性双折射An = 2×10〜（-5），这导致在远离泵浦的地方产生狭窄的增益区域。我们已经使用此功能成功实现了具有固有增益的新型波分复用（WDM）解复用器。

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