Chinese Optics Letters, Volume. 1, Issue 12, 12699(2003)
New chemically stable Er^(3+)-Yb^(3+) co-doped phosphate glass for optical waveguide lasers and amplifiers
A set of phosphate glasses with different amounts of Al_(2)O_(3), Na_(2)O, La_(2)O_(3) and AlF_(3) contents were prepared to search for a phosphate glass which is suitable for ion-exchange process. Based on chemical durability test results and spectroscopic properties, a glass with excellent chemical durability and good spectroscopic properties is developed for ion-exchange process. The emission cross section of Er^(3+) in this glass is calculated to be 0.72×10^(-20) cm^(2) by McCumber theory. The planar waveguide with three modes at 632.8 nm and one mode at 1540 nm can be realized by 335 ℃ 3 hours ion-exchange in 5%AgNO_(3)+95%KNO_(3) molten salt.
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Baoyu Chen, Shilong Zhao, Lili Hu, "New chemically stable Er^(3+)-Yb^(3+) co-doped phosphate glass for optical waveguide lasers and amplifiers," Chin. Opt. Lett. 1, 12699 (2003)
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