Optimum design of the Er3+/Yb3+ co-doped glass waveguide laser fabricated by femtosecond laser pulses

SHANG Yan-li; CHEN Hai-bin; HONG Zhi

In order that numerical simulation of the bidirectional pumped,erbium and ytterbium co-doped phosphate glass waveguide laser fabricated by femtosecond laser pulses was performed,based on the transition rate equations and propagation equations of the erbium and ytterbium co-doped system,the optimal parameters such as the size of the waveguide,output coupler reflectivity,the ratio of Er3+/Yb3+ were obtained.The results indicated that with the parameters of 10mm long waveguide,0.6 of the mirror reflectivity and 3.6 of the ratio of Er3+/Yb3+,the laser at 1535nm output up to 57mW with the pump power of 400mW at 975nm.The theoretical analysis agreed well with the experimental results reported so far.The simulation results provide a rigid theoretical Ease for the fabrication of active glass waveguide and the design of femtosecond laser.

Corresponding author: HONG Zhi, hongzhi@cjlu.edu.en

1. Centre for THz Research, China Jiliang University, Hangzhou 310018, China

Received Date: 2008-04-16

Accepted Date: 2008-08-13

Available Online: 2009-06-25

Abstract: In order that numerical simulation of the bidirectional pumped,erbium and ytterbium co-doped phosphate glass waveguide laser fabricated by femtosecond laser pulses was performed,based on the transition rate equations and propagation equations of the erbium and ytterbium co-doped system,the optimal parameters such as the size of the waveguide,output coupler reflectivity,the ratio of Er3+/Yb3+ were obtained.The results indicated that with the parameters of 10mm long waveguide,0.6 of the mirror reflectivity and 3.6 of the ratio of Er3+/Yb3+,the laser at 1535nm output up to 57mW with the pump power of 400mW at 975nm.The theoretical analysis agreed well with the experimental results reported so far.The simulation results provide a rigid theoretical Ease for the fabrication of active glass waveguide and the design of femtosecond laser.

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Reference (14)

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Optimum design of the Er3+/Yb3+ co-doped glass waveguide laser fabricated by femtosecond laser pulses

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