Characteristics of Electrically Driven Two-Dimensional Photonic Crystal Lasers

IEEE Journal of Quantum Electronics (Impact Factor: 1.89). 10/2005; 41(9):1131 - 1141. DOI: 10.1109/JQE.2005.852800
Source: IEEE Xplore


We demonstrate room-temperature low-threshold-current lasing action from electrically driven wavelength-scale high-quality photonic crystal lasers having large spontaneous emission factors by solving the theoretical and technical constraints laid upon by the additional requirement of the current injection. The ultrasmall cavity is electrically pulse pumped through a submicron-size semiconductor “wire” at the center of the mode with minimal degradation of the quality factor. In addition, to better utilize the low mobility of the hole, we employ a doping structure that is inverted from the conventional semiconductors. Rich lasing actions and their various characteristics are experimentally measured in the single-cell and three-cell photonic crystal cavities. Several relevant measurements are compared with three-dimensional finite-difference time-domain computations based on the actual fabricated structural parameters. The electrically driven photonic crystal laser, which is a small step toward a “practical” form of the single photon source, represents a meaningful achievement in the field of photonic crystal devices and photonic integrated circuits as well as of great interest to the quantum electrodynamics and quantum information communities.

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Available from: Young-Gu Ju, Nov 05, 2013
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    • "The latter is important for coupling to in-plane on-chip waveguides. One major limitation is practical electrical injection, although laser diode operation has been reported [10]. "
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    ABSTRACT: Photonic crystal (PhC) lasers in InGaAsP membranes are bonded after fabrication to a sapphire substrate. The processed devices are held to the sapphire by van der Waals forces and do not require a high temperature anneal. PhC H2 defect cavity devices are found to lase continuous wave and line defect heterostructure devices lase pulsed, both under optical excitation. Postprocess bonding allows extensive fabrication on the native substrate before being transferred to a new substrate, which may be useful for making more complex nanophotonic devices and/or electrically injected devices.
    IEEE Photonics Journal 07/2011; DOI:10.1109/JPHOT.2011.2139199 · 2.21 Impact Factor
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    • "PhC resonant cavities can be used for realizing lasers with very small size. A higher selectivity and single mode operation in a waveguide laser can be achieved by including in the cavity a PhC mirror placed [19]. A tunable single mode laser can be also realized by using cavities delimited by PhCs, exploiting the refractive index variation due to a temperature change PhCs allow to realize optical waveguides based on physical effects different from the conventional total internal reflection [20], by exploiting the effect of linear defects. "
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    Physics Procedia 01/2010; 3:357-364. DOI:10.1016/j.phpro.2010.01.047
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    • ". Its -factor is about 7500, which is estimated from the measured linewidth at the transparency pump level by . This experimental estimated method is also used in reports by other groups [15], [16]. This high-value can be attributed to the well-confined characteristics of WGM with standing wave formed in the gears around the edge of cavity. "
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