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- W3023341470 endingPage "200" @default.
- W3023341470 startingPage "151" @default.
- W3023341470 abstract "This chapter discusses the general concepts of gain spectrum, amplifier bandwidth, and operating characteristics of erbium-doped fiber amplifiers (EDFAs). The nonlinear and dispersive effects are included using the Maxwell-Bloch formalism. The Ginzburg-Landau Equation is used to discuss a variety of nonlinear effects in fiber amplifiers. Amplifier characteristics, such as the operating wavelength and the gain bandwidth, are determined by dopants rather than by the fiber, which plays the role of a host medium. Fiber amplifiers amplify incident light through stimulated emission, the same mechanism used by lasers. Indeed, an optical amplifier is just a laser without feedback. The gain of EDFAs depends on a large number of parameters such as erbiumion concentration, amplifier length, core radius, and pump power. Much insight can be gained by using a simple model that neglects amplified spontaneous emission and excited-state absorption. Amplification of short optical pulses can be studied by solving the Ginzburg- Landau equation numerically." @default.
- W3023341470 created "2020-05-13" @default.
- W3023341470 creator A5074949273 @default.
- W3023341470 date "2001-01-01" @default.
- W3023341470 modified "2023-09-27" @default.
- W3023341470 title "Fiber Amplifiers" @default.
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