科研之友
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摘要
The exact "quantum limit" value of noise figure of EDFA in the high gain regime at quasi-two-level pumping is determined on the base of the McCumber theory. It is shown that in the unsaturated gain regime the ultimate spectral efficiency of information transmission depends on host material of EDFA and can serve as a figure of merit for comparison of host fibers.
- 出版日期2005-11
