Power equalized wavelength-selective fiber lasers using fiber Bragg gratings

Abstract

A fiber Bragg grating (FBG) based multi-wavelength ring laser is experimentally investigated in this paper. The lasing wavelengths can be dynamically selected by using a 1 x N optical switch. Micro-bender between FBGs is used as variable attenuator to equalize the output power for each lasing wavelength. By using passive multi-ring cavities (MRC) method, single- or dual-wavelength laser of equal output power is demonstrated for a signal-to-noise ratio (SNR) of 63 dB and a narrow linewidth of 3 kHz. (C) 1998 Elsevier Science B.V. All rights reserved.