Analysis of gain distribution in cladding-pumped thulium-doped fiber laser and optical feedback inhibition problem in fiber-bulk laser system |
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Ji En-Cai†
 , Liu Qiang, Hu Zhen-Yue, Gong Ma-Li |
| Simulation of OFI problem. (a) The reflectivities of FBG2 and M2 with the present coating; (b) the reflectivities of the present coating and assumed better coating of M2; (c) the output spectra from M2 and FBG1, and the residual signal spectra after one round-trip with the present coating; (d) the output spectra from M2 and FBG1, and the residual signal spectra after one round-trip with better coating. |
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