Few-mode erbium-doped optical fiber and few-mode erbium-doped optical fiber amplifier
An erbium-doped optical fiber and amplifier technology, which is applied in the field of communication, can solve problems such as mode crosstalk without consideration, and achieve the effect of flat gain and weak coupling transmission
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[0029] The embodiment of the present application provides a few-mode erbium-doped fiber amplifier, which can achieve gain flatness between transmission modes only through single fundamental mode pumping, and at the same time realize weak coupling transmission of signal light in the few-mode erbium-doped fiber amplifier. Each will be described in detail below.
[0030] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of this application.
[0031] Different modes of light propagating in erbium-doped fibers have different light intensity distributions. Therefore, when using ...
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