Fabrication and characterization of Er doped silicon-rich silicon nitride (SRSN) micro-disks

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Micro-disk resonators were fabricated using Er doped silicon-rich silicon nitride (SRSN:Er). SRSN:Er thin films are fully CMOS-compatible and show efficient Er3+ luminescence pumped off-resonantly via Si nanoclusters. The high refractive index of SRSN (>2.0 at 1.5 um) allows freedom in designing compact micro-disk resonators. Micro-disks with two different contents of Er (0.2 at.%, 0.02 at.%) with a diameter of 25 um were fabricated, and characterized using evanescent coupling using tapered fibers. Whispering gallery modes with Q-factors in excess of 13000 were obtained, and FDTD calculations indicate that much higher values should be possible. Finally, we demonstrate excitation of fundamental whispering gallery mode via off-resonant, top-pumping of the SRSN microdisk.
Publisher
International Society for Optical Engineering (SPIE)
Issue Date
2008-02-12
Keywords

Silicon-rich silicon nitride; Er; micro-disk

Citation

Proc. of SPIE Vol. 6897

DOI
10.1117/12.764327
URI
http://hdl.handle.net/10203/10856
Appears in Collection
PH-Journal Papers(저널논문)

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