Mode competition in high power fiber amplifiers.
نویسندگان
چکیده
Using a beam propagation model of Yb3+ doped, CW fiber amplifiers we show that gain saturation by a strong fundamental mode significantly suppresses the growth of higher order modes with parallel polarization, but enhances the growth of higher order modes with perpendicular polarization. We quantify this effect in straight and bent fibers, with full core or restricted area doping.
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عنوان ژورنال:
- Optics express
دوره 19 12 شماره
صفحات -
تاریخ انتشار 2011