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Journal of Lightwave Technology

Journal of Lightwave Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 31, Iss. 1 — Jan. 1, 2013
  • pp: 36–42

Dielectric-Band Photonic Crystal Nanobeam Lasers

Po-Tsung Lee, Tsan-Wen Lu, and Li-Hsun Chiu

Journal of Lightwave Technology, Vol. 31, Issue 1, pp. 36-42 (2013)


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Abstract

We investigate a mode gap confined dielectric band laser via a 1-D photonic crystal (PhC) nanobeam (NB) nanocavity with lattice gradually shifted PhC mirror. Owing to different modal symmetries, different zeroth-order dielectric mode properties, including quality (Q) factors, mode volumes, lasing thresholds, and slope efficiencies, in nanocavities with two different cavity sizes are investigated. In experiments, single-mode lasing from dielectric bands with low effective lasing thresholds is obtained. Rising of the high-order modes is also observed when we increase the PhC mirror periods for high Q factor of the zeroth-order dielectric mode. In addition, we observe the bonding and antibonding modes in beamwidth mismatched coupled NB nanocavities and switch the dominant lasing mode via spatially nonuniform carrier injection.

© 2012 IEEE

Citation
Po-Tsung Lee, Tsan-Wen Lu, and Li-Hsun Chiu, "Dielectric-Band Photonic Crystal Nanobeam Lasers," J. Lightwave Technol. 31, 36-42 (2013)
http://www.opticsinfobase.org/jlt/abstract.cfm?URI=jlt-31-1-36

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