Higher Gain of Single-Mode Cr-Doped Fibers Employing Optimized Molten-Zone Growth
| Autor: | Sheng-Lung Huang, Nan-Kuang Chen, Wood-Hi Cheng, Ting-Sou Rou, Tsung-Hau Wang, Chun-Nien Liu |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Materials science
business.industry Annealing (metallurgy) Single-mode optical fiber 02 engineering and technology Atomic and Molecular Physics and Optics Wavelength 020210 optoelectronics & photonics Pedestal Net gain Fiber laser Broadband 0202 electrical engineering electronic engineering information engineering Empirical formula Optoelectronics business |
| Zdroj: | Journal of Lightwave Technology. 35:4930-4936 |
| ISSN: | 1558-2213 0733-8724 |
| DOI: | 10.1109/jlt.2017.2767567 |
| Popis: | Higher gain of single-mode Cr-doped crystalline core fibers (SMCDCCFs) with longer fiber length employing an optimized molten-zone in laser-heated pedestal growth (LHPG) technique is demonstrated. The optimized molten zone in the LHPG is determined by an empirical formula. The SMCDCCFs exhibit a length of 24-cm, a core diameter of 25-μm, and a V-value of 2.40 which confirms the LP01 single-mode operation. A 6.44-dB gross gain and a 4.44-dB net gain with 24-cm fiber length of the SMCDCCF at wavelength of 1.4-μm were obtained. Further studies on higher gain of more than 10-dB gross gain of the SMCDCCFs including a longer length of 30-cm, a lower loss fiber, and a suitable annealing technique are essential to develop the SMCDCCFs as broadband fiber amplifiers for practical use in the next-generation fiber transmission systems and are currently under investigation. |
| Databáze: | OpenAIRE |
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