## Abstract A reconfigurable multiwavelength erbiumβdoped fiber laser, using two multimode fiber Bragg gratings (MFBGs), is presented. Two MFBGs in Lβband are cascaded to form two overlapping resonant cavities. Various configurations of fourβ, threeβ, or twoβwavelength lasing are demonstrated exper
Multiwavelength fiber lasers based on multimode fiber Bragg gratings using offset launch technique
β Scribed by Xinhuan Feng; Hwa-yaw Tam; Weng-hong Chung; P.K.A. Wai
- Publisher
- Elsevier Science
- Year
- 2006
- Tongue
- English
- Weight
- 240 KB
- Volume
- 263
- Category
- Article
- ISSN
- 0030-4018
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π SIMILAR VOLUMES
We have realized and studied the fiber laser based on 4-core Yb-doped fiber and multimode Bragg grating as the input reflector. The lasing efficiency slope of 55% was measured. An investigation of the output emission has shown that the far-field pattern constitutes an interference picture. That allo
We have realized a set of multimode lasers based on a double-clad Yb-doped fiber and Bragg gratings written on a graded-index multimode fiber. Efficient laser operation in the spectral range of 1.03-1.09 ΞΌm has been observed. Spectral characteristics of the laser emission have been investigated.
relocated from 1.86 to 1.97 GHz whilst the upper zero varies from 2.24 to 2.04 GHz. ## 3. MEASURED RESULTS To verify the proposed approach, a filter is designed at f 0 Ο 2 GHz with 3.5% FBW and R Ο 0.64 using the dimensions as reported in the last section. The substrate used is RO4003 with relativ