A multiwavelength fiber ring-laser employing a pair of silica-based arrayed-waveguide-gratings
Authors:
- N. EdagawaNEN. Edagawa
- S. YamamotoSYS. Yamamoto
- S. AkibaSAS. Akiba
- 1 July 1997
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Technology Letters
- Vol. 9 (7) , 910-912
Abstract
A multiwavelength fiber ring-laser employing a pair of silica-based arrayed-waveguide-gratings (AWGs) is proposed to easily implement a stable multiwavelength operation for a variety of research needs. A fixed multiwavelength operation is available when the free-spectral-range (FSR) of the AWGs is wide enough to cover the gain bandwidth of deployed erbium-doped fiber amplifiers (EDFAs). A tunable multiwavelength operation is also available when the FSR is narrower than the gain bandwidth. 15 channels with 1.6-nm spacing in the fix type, and five channels with about 40-nm discretely tunable range at 1.4-nm spacing in the tunable type and almost 50-dB signal to amplified spontaneous emission (ASE) ratio in both types are demonstrated.Keywords
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