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|Title:||Proton beam writing of erbium-doped waveguide amplifiers|
|Authors:||Sum, T.C. |
Venugopal Rao, S.
Van Kan, J.A.
|Keywords:||Buried channel waveguides|
Proton beam writing
|Source:||Sum, T.C., Bettiol, A.A., Liu, K., Ren, M.Q., Pun, E.Y.B., Venugopal Rao, S., Van Kan, J.A., Watt, F. (2005-04). Proton beam writing of erbium-doped waveguide amplifiers. Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms 231 (1-4) : 394-399. ScholarBank@NUS Repository. https://doi.org/10.1016/j.nimb.2005.01.089|
|Abstract:||Buried channel waveguide amplifiers in Er3+-Yb3+ co-doped phosphate glasses were fabricated by proton beam writing using a focused sub-micron beam of 2.0 MeV protons with a fluence ranging from 0.5-6.0 × 1015 particles/cm2. The waveguides were located at a depth of ∼38 μm beneath the surface. Above a threshold fluence of 3.0 × 1015 particles/cm2, a negative refractive index change occurs, preventing any light confinement in the channel. A peak net gain of ∼1.57 dB/cm was measured for waveguides fabricated with a fluence of ∼0.9 × 1015 particles/cm2. These measurements were performed at 1.534 μm signal wavelength, with 100 mW pump power at 975 nm wavelength. © 2005 Elsevier B.V. All rights reserved.|
|Source Title:||Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms|
|Appears in Collections:||Staff Publications|
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