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The self-pulsing laser reported here was fabricated in a 92 mm long Er-diffusion doped Z-cut LN substrate with a surface concentration of about 1.24 x 1020 cm-3 and a diffusion depth of 8.4 mum. Ti stripes of 7 mum width were indiffused to define single mode waveguides for the 1550 nm wavelength range. The laser cavity was formed by two dielectric multilayer mirrors, one of them vacuum-deposited on...
Over 108% single-pass net gains were achieved at wavelength of 1550 and 1500 nm both in highly transparent Er3+ doped and in Er3+ and Yb3+ codoped electro-optic lanthanum-modified lead zirconate titanate (PLZT) ceramics.
We developed a new method to fabricate a silica microsphere coated by a thin layer of Er : Yb-doped phosphate glass. The coated microsphere possessed high-Q whispering-gallery modes and formed single-mode and multimode microlasers in the both 1550- and 1040-nm bands. A low-loss fiber taper was used to not only launch the pump power around 980 nm into the microsphere, but also collect the resulting...
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