1 May 2004 Er-Yb double-clad fiber amplifier
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We present model calculations of gain at 1550 nm for Er-Yb double-clad amplifiers as a function of pump power, signal input power, fiber length, and temperature. The calculated gain is ~20 dB for a 6-W pump for a 20-mW input signal at 25 C. More than 10 W of amplified power can be obtained using an 8-m-long fiber with ~25 W of pump power. The gain decreases with increasing input signal. We show that a high-power Er-Yb codoped double-clad fiber amplifier also exhibits high gain for Yb transition near 1060 nm. This is not unexpected, since the input pump causes population inversion in Yb also.
© (2004) Society of Photo-Optical Instrumentation Engineers (SPIE)
Qiang Wang, Qiang Wang, Niloy K. Dutta, Niloy K. Dutta, "Er-Yb double-clad fiber amplifier," Optical Engineering 43(5), (1 May 2004). https://doi.org/10.1117/1.1695402 . Submission:


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