期刊
IEEE PHOTONICS JOURNAL
卷 4, 期 6, 页码 2278-2284出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JPHOT.2012.2226872
关键词
Fiber lasers; diode-pumped lasers
资金
- National Science Council of the Republic of China [NSC 99-2221-E-017-012, NSC 100-2221-E-017 -010]
Yb:fiber lasers have shown excellent performance in 980- to 1100-nm wavelength range. Below 980 nm, the small ratio between emission and absorption cross sections hindered its development. To find out a feasible solution for short-wavelength Yb: fiber laser, the temperature-dependent emission and absorption cross sections, fiber length, pumping method, and suppression of high-gain wavelengths are analyzed and discussed. It is interesting to find that elevated temperature of the gain fiber is beneficial for short-wavelength Yb: fiber laser generation, which is opposite to general perception of quasi-three-level lasers. In this paper, a 960-nm Yb: fiber laser with 20.1% slope efficiency is successfully developed at 101 degrees C, which is the shortest wavelength of Yb: fiber laser to our knowledge. And this 960-nm Yb: fiber laser can be applied in generating blue light for large-screen laser display.
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