Multiwavelength erbium-doped fiber laser based on inhomogeneous loss mechanism by use of a highly nonlinear fiber and a Fabry-Perot filter

作者：Pan SL^*; Lou CY; Gao YZ

来源：Optics Express, 2006, 14(3): 1113-1118.

DOI：10.1364/OE.14.001113

We demonstrated a simple technique to obtain stable room temperature multiwavelength lasing in an erbium-doped fiber laser by the inhomogeneous loss mechanism. Successful reduction of the cross-gain saturation in erbium-doped fiber was achieved by incorporating a section of highly nonlinear fiber ( HNLF) and a narrowband Fabry-Perot filter (FPF) in the laser cavity. More than 70 wavelengths simultaneous lasing were observed with the same frequency space of 25GHz. The laser had a total output power of similar to 3.2dBm, a bandwidth of 0.012nm (similar to 1.5GHz) and a signal-to-spontaneous- noise ratio of similar to 44dB. The total output power can be further increased to more than 190mW by moving the output port right after the EDFA.

• 出版日期2006-2-6
• 单位清华大学