Optimum signal profile in longitudinally pumped three-level amplifiers

SANCHEZ F., BRUNEL M., Ozkul C. , AIT-AMEUR K.

JOURNAL OF MODERN OPTICS, vol.45, no.12, pp.2533-2539, 1998 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 45 Issue: 12
  • Publication Date: 1998
  • Doi Number: 10.1080/09500349808230505
  • Title of Journal : JOURNAL OF MODERN OPTICS
  • Page Numbers: pp.2533-2539

Abstract

The increase of signal power through an optical amplifier generally depends on the shape of the input signal. The optimum signal beam profile in three-level amplifiers is analytically determined using a variational approach. For a Gaussian pump distribution, it is demonstrated that a high-order super-Gaussian signal is nearly optimum for a wide range of the signal to pump width ratio.