Article

Low-Threshold Pump Power and High Integration in Al O : Er Slot Waveguide Lasers on SOI

Scuola Superiore Sant'Anna, Pisa, Italy
IEEE Photonics Technology Letters (Impact Factor: 2.11). 11/2010; 22(19):1428 - 1430. DOI: 10.1109/LPT.2010.2054072
Source: IEEE Xplore

ABSTRACT

We numerically investigate the potential of Al2O3:Er3+ active slot waveguides for realizing small-form factor lasers on silicon-on-insulator. Based on recent technological improvements in the reliable and low-cost fabrication of alumina doped with high Er3+ concentration, we point out the possibility of realizing silicon compatible emitters at 1.55 μm, optically pumped at 1480 nm with a few milliwatts threshold pump power.

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    • "Here two WG's are implemented on silica (SiO 2 ) base with air as cover and low index slot material. But we can use any low index compatible materials for the slot region, such as electro-optic materials for high-speed modulators [3], doped material to achieve gain [5] or sensing material for efficient organic/inorganic sensing [12]. We have taken the same height for both the WGs as H and same width for the high index regions of the slot WG as W 2 . "
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    ABSTRACT: Design of a compact polarization rotator (PR) exploiting power coupling through phase matching between the TM mode of a strip waveguide (WG) and TE mode of a vertical slot WG is presented. Optimized cross sectional dimensions of the coupler have been achieved to use this device as a compact PR at 3 µm wavelength with device length of just 2 mm. We also investigate the device performance at the operating wavelength (λ) = 1.55 µm.
    Full-text · Conference Paper · Dec 2012
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    • "Here two WG's are implemented on silica (SiO 2 ) base with air as cover and low index slot material. But we can use any low index compatible materials for the slot region, such as electro-optic materials for high-speed modulators [3], doped material to achieve gain [5] or sensing material for efficient organic/inorganic sensing [12]. We have taken the same height for both the WGs as H and same width for the high index regions of the slot WG as W 2 . "
    [Show abstract] [Hide abstract]
    ABSTRACT: Design of a compact polarization rotator (PR) exploiting power coupling through phase matching between the TM mode of a strip waveguide (WG) and TE mode of a vertical slot WG is presented. Optimized cross sectional dimensions of the coupler have been achieved to use this device as a compact PR at 3 μm wavelength with device length of just 2 mm. We also investigate the device performance at the operating wavelength (λ) = 1.55 μm.
    Full-text · Conference Paper · Jan 2012
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    ABSTRACT: We numerically investigate the potential of Al O :Er active slot waveguides for realizing small-form factor lasers on silicon on insulator at 2.8 m. Based on re- cent technological improvements in the reliable and low-cost fabrication of alumina doped with high Er concentration and exploiting the extremely high field intensity achievable in optimized active slot waveguides, we point out the possibility of realizing silicon-compatible emitters at 2.8 m, optically pumped at 1480 nm with a few milliwatts threshold pump power. A strong potential impact can be envisaged for chemical sensing, biosensing and lab-on-a-chip applications. Index Terms—Aluminum oxide, erbium, integrated optics, slot waveguide, 3 m laser.
    No preview · Article · Apr 2011 · Journal of Lightwave Technology
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