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抽运旁通腔型的掺镱光纤(YDF)激光器内剩余的抽运光功率随着入射抽运功率的变化呈现出光学双稳特性,这导致了用它来抽运另一个分叉腔的铒镱共掺光纤(EYDF)增益介质可获得第二个信号波长激发的可能性。根据这一原理,从实验上获得了1040 nm和1537 nm两个激发线的可切换振荡,这表明基于掺镱光纤激光器光学双稳态的复合腔结构(掺镱光纤激光器的抽运旁通腔和铒镱共掺光纤分叉腔)是实现切换式双波长光纤激光器光源的一个简单有效的方法。
The remaining pump power in a pump-bypass Ytterbium-doped fiber (YDF) laser exhibits optical bistability as a function of incident pumping power, which results in the use of it to pump another branch chamber The erbium-ytterbium codoped fiber (EYDF) gain medium gives the possibility of a second signal wavelength excitation. According to this principle, switchable oscillations of two excitation lines at 1040 nm and 1537 nm are experimentally obtained, which shows that the optical bistable composite cavity structure based on the Yb-doped fiber laser (the pumping bypass cavity of the Ytterbium-doped fiber laser And erbium-ytterbium codoped fiber splitting cavities) is a simple and effective method to realize switching dual-wavelength fiber laser light source.