Tunable distributed feedback lasing with low threshold and high slope efficiency from electroluminescent conjugated polymer waveguide

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Abstract

We present here tunable lasing from holographic distributed feedback (DFB) resonator of electroluminescent conjugated polymer waveguide. Tunable holographic lasing from 560 to 590 nm was simply achieved by rotating a Lloyd-mirror waveguide configuration. Lasing performance for the first order (m = 1) is superior to that for the second order (m = 2). Threshold for lasing for m = 1 is in the range of 25 to 50 μJ/cm2/pulse, which is close to that for amplified spontaneous emission (ASE), and that for m = 2 is larger than 104 μJ/cm2/pulse. For m = 1, slope efficiency of 7.3% including ASE in addition to lasing emission was measured, whereas for m = 2 slope efficiency between 0.1 and 0.2% was measured. © 2011 Elsevier B.V. All rights reserved.

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Tsutsumi, N., & Nishida, H. (2011). Tunable distributed feedback lasing with low threshold and high slope efficiency from electroluminescent conjugated polymer waveguide. Optics Communications, 284(13), 3365–3368. https://doi.org/10.1016/j.optcom.2011.02.086

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