Simulation and Computer Modeling of a Diode pumped Erbium-Ytterbium (Er3+/Yb3+) Co-doped Fiber Laser
Harfoush, A., Mokhtar, A., El-Sherif, A., Hassan, M. (2012). Simulation and Computer Modeling of a Diode pumped Erbium-Ytterbium (Er3+/Yb3+) Co-doped Fiber Laser. EKB Journal Management System, 6(International Conference on Mathematics and Engineering Physics (ICMEP-6)), 1-9. doi: 10.21608/icmep.2012.29762
Amr Harfoush; Ayman M. Mokhtar; Ashraf F. El-Sherif; Mahmoud F. Hassan. "Simulation and Computer Modeling of a Diode pumped Erbium-Ytterbium (Er3+/Yb3+) Co-doped Fiber Laser". EKB Journal Management System, 6, International Conference on Mathematics and Engineering Physics (ICMEP-6), 2012, 1-9. doi: 10.21608/icmep.2012.29762
Harfoush, A., Mokhtar, A., El-Sherif, A., Hassan, M. (2012). 'Simulation and Computer Modeling of a Diode pumped Erbium-Ytterbium (Er3+/Yb3+) Co-doped Fiber Laser', EKB Journal Management System, 6(International Conference on Mathematics and Engineering Physics (ICMEP-6)), pp. 1-9. doi: 10.21608/icmep.2012.29762
Harfoush, A., Mokhtar, A., El-Sherif, A., Hassan, M. Simulation and Computer Modeling of a Diode pumped Erbium-Ytterbium (Er3+/Yb3+) Co-doped Fiber Laser. EKB Journal Management System, 2012; 6(International Conference on Mathematics and Engineering Physics (ICMEP-6)): 1-9. doi: 10.21608/icmep.2012.29762

Simulation and Computer Modeling of a Diode pumped Erbium-Ytterbium (Er3+/Yb3+) Co-doped Fiber Laser

The International Conference on Mathematics and Engineering Physics
Article 15, Volume 6, International Conference on Mathematics and Engineering Physics (ICMEP-6), May 2012, Page 1-9  XML PDF (369.78 K)
Document Type: Original Article
DOI: 10.21608/icmep.2012.29762
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Authors
Amr Harfoush1; Ayman M. Mokhtar2; Ashraf F. El-Sherif1; Mahmoud F. Hassan1
1Laser Photonics Research Group, Engineering Physics Dept., MTC, Cairo, Egypt.
2Optoelectronic Department, MTC, Cairo, Egypt.
Abstract
Abstract:
Fiber lasers technology has grown rapidly due to the rapid advances in high power diodes, diode-to-fiber coupling schemes and doped fiber design and fabrication. Erbium-Ytterbium (Er3+/Yb3+) co-doped fiber is an attractive active medium for the fiber lasers in which Ytterbium is co-doped with Erbium to produce a spectrum in third telecoms window around 1550nm which makes them suitable sources for long range applications. In this paper the Er3+/Yb3+ fiber laser pumped by a laser diode at 980 nm is simulated using the Optiwave software. The pump source was swept from 1.25 to 5 w to extract the slope efficiency. The pump radiation was focused into the Er3+/Yb3+ fiber through an input mirror, which was 98% reflecting at 1550 nm and 99% transmitting at 980 nm. A length of 0.1 m of Er3+/Yb3+ fiber was used with an N.A. of 0.22, Er3+ ion density of 25.4 x 1024 m-3, and Yb3+ ion density of 320 x 1024 m-3. The output mirror was 50% reflecting at 1550 nm. Then the length of the fiber was swept from 1m to 5m in order to obtain optimized fiber length. The simulation results demonstrated that a laser output power of 0.8 W was obtained at 1550 nm for a launched power of 2 W with a slope efficiency of 40% and a lasing threshold of 0.4 W of launched pump power. The results also showed that the optimized fiber length was achieved at 2 m which is in a good agreement with the published similar experimental schemes.
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