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All-fiber Based Er^(3+)∶Yb^(3+) Co-doped Fiber Laser
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作者 LIU Yang WANG Xiao-bing +2 位作者 SUN Bin CHENG Yong WANG Li-jun 《Semiconductor Photonics and Technology》 CAS 2006年第4期242-244,共3页
An all-fiber based Er~ 3+ ∶Yb~ 3+ co-doped double clad fiber laser operating at 1550nm is demonstrated. By using 9m long Er~ 3+ ∶Yb~ 3+ co-doped fiber(EYDF) as the gain medium, and using a pair of fiber Bragg gratin... An all-fiber based Er~ 3+ ∶Yb~ 3+ co-doped double clad fiber laser operating at 1550nm is demonstrated. By using 9m long Er~ 3+ ∶Yb~ 3+ co-doped fiber(EYDF) as the gain medium, and using a pair of fiber Bragg gratings as wavelength filters, the line-width of the output laser is as narrow as 0.2nm and the output power is more than 6mW. The fluorescent effect of the laser before its emission is also studied. And it is found that the Er~ 3+ ∶Yb~ 3+ co-doped double-clad fiber laser also exhibits a high gain for Yb~ 3+ transition near 1080nm. 展开更多
关键词 Er^3+∶Yb^3+co-doped fiber fiber laser fiber Bragg grating Fluorescent effect
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Influence of Input Pulse Durations on Properties of Er^(3+)/Yb^(3+) Co-doped DCFA
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作者 ZHAN Sheng-bao ZHAO Shang-hong SHI Lei XU Jie ZHAO Xiao-ming 《Semiconductor Photonics and Technology》 CAS 2006年第3期205-210,共6页
Based on propagation-rate equations, the influence of different input pulse durations on the properties of Er^3+/Yb^3+ co-doped double-clad fiber amplifier at dynamic equilibrium was analyzed. The change characteris... Based on propagation-rate equations, the influence of different input pulse durations on the properties of Er^3+/Yb^3+ co-doped double-clad fiber amplifier at dynamic equilibrium was analyzed. The change characteristic of output power sag with pulse duration and repetition rate was shown. Whether single or multichannel input pulses are amplified, the shorter the input pulse duration is, the smaller the power sags of output pulse will be. At low repetition rate, upper gain values(Gupper) of gain swing are almost the same for different input pulse durations, which tend to the small signal gain, but lower gain value(Glower) of short input pulse is larger than that of long input pulse. At highrepetition rate, lower gain value(Glower) approaches to upper gain value(Glower). 展开更多
关键词 Er^3+/Yb^3+ co-doped Double-clad fiber amplifier Pulse duration Pulse repetition rate
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