Title :
Modeling high-power Er3+-Yb3+ codoped fiber lasers
Author :
Yahel, Eldad ; Hardy, Amos
Author_Institution :
Dept. of Electr. Eng., Tel Aviv Univ., Israel
Abstract :
High-power cladding-pumped Er3+-Yb3+ codoped fiber lasers (EYDFL) are analyzed with a detailed rate-equations model that takes into account the energy transfer between Yb3+ and Er3+. Examples of EYDFL with distributed Bragg reflector (DBR) mirrors at both fiber ends are demonstrated. Approximate quasi-analytical solutions to the rate equations show good agreement with the exact numerical solutions for practical operating conditions. An "optimum design" of the laser is discussed in relation to the fiber length that maximizes the output power.
Keywords :
distributed Bragg reflector lasers; erbium; fibre lasers; laser theory; optical fibre theory; ytterbium; distributed Bragg reflector mirrors; energy transfer; exact numerical solutions; high-power cladding-pumped Er3+-Yb3+ codoped fiber lasers; optimum design; output power maximization; practical operating conditions; quasi-analytical solutions; rate-equations model; Distributed Bragg reflectors; Energy exchange; Equations; Erbium; Fiber lasers; Laser modes; Mirrors; Optical design; Power generation; Power lasers;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2003.816854
