2021年8月
Self-consistent analysis of photonic-crystal surface-emitting lasers under continuous-wave operation
OPTICS EXPRESS
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- 巻
- 29
- 号
- 16
- 開始ページ
- 25118
- 終了ページ
- 25132
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1364/OE.427783
- 出版者・発行元
- OPTICAL SOC AMER
We develop a self-consistent theoretical model for simulating the lasing characteristics of photonic-crystal surface-emitting lasers (PCSELs) under continuous-wave (CW) operation that takes into account thermal effects caused by current injection. Our model enables us to analyze the lasing characteristics of PCSELs under CW operation by solving self-consistently the changes in the in-plane optical gain and refractive index distribution, which is associated with heat generation and temperature rise, and the change in the oscillation modes. We reveal that the lasing band-edge selectivity and beam quality of the PCSELs are affected by the spatial distribution of the band-edge frequency of the photonic crystal formed by the refractive index distribution, which depends on the temperature distribution in the resonator. Furthermore, we show that single-mode lasing with narrow beam divergence can be realized even at high current injection under CW operation by introducing a photonic-crystal structure with an artificially formed lattice constant distribution, which compensates such band-edge frequency distribution. (C) 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
- リンク情報
- ID情報
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- DOI : 10.1364/OE.427783
- ISSN : 1094-4087
- Web of Science ID : WOS:000678755000039