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Optica Publishing Group
  • Journal of the Optical Society of Korea
  • Vol. 17,
  • Issue 5,
  • pp. 357-361
  • (2013)

Regenerative Er-doped Fiber Amplifier System for High-repetition-rate Optical Pulses

Open Access Open Access

Abstract

A regenerative Er-doped fiber amplifier system for a high-repetition-rate optical pulse train is investigated for the first time. A signal pulse train with a wavelength tuning range of 18 nm is produced by a passive mode-locked fiber laser based on a nonlinear polarization rotation technique. In order to realize the amplification, an optical delay-line is used to achieve time match between the pulses' interval and the period of pulse running through the regenerative amplifier. The 16 dB gain is obtained for an input pulse train with a launching power of -30.4 dBm, a center wavelength of 1563.4 nm and a repetition rate of 15.3 MHz. The output properties of signal pulses with different center wavelengths are also discussed. The pulse amplification is found to be different from the regenerative amplification system for CW signals.

© 2013 Optical Society of Korea

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