2022年8月1日
High-power CW oscillation of 1.3-µm wavelength InP-based photonic-crystal surface-emitting lasers
Optics Express
- 巻
- 30
- 号
- 16
- 開始ページ
- 29539
- 終了ページ
- 29539
- 記述言語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1364/oe.461048
- 出版者・発行元
- Optica Publishing Group
We demonstrate high-power continuous-wave (CW) lasing oscillation of 1.3-µm wavelength InP-based photonic-crystal surface-emitting lasers (PCSELs). Single-mode operation with an output power of over 100 mW, a side-mode suppression ratio (SMSR) of over 50 dB, and a narrow single-lobe beam with a divergence angle of below 1.2° are successfully achieved by using a double-lattice photonic crystal structure consisting of high-aspect-ratio deep air holes. The double lattice is designed to enhance both the in-plane optical feedback and the surface radiation effects in the photonic crystal. The coupling coefficients for 180, +90, and -90 diffractions are estimated from the measurements of the photonic band structure as κ1D = 417 cm−1, κ2D+ = 135 cm−1, and κ2D− = 65 cm−1, respectively. The stable single-mode, high-beam-quality operation is attributed to these large coupling coefficients introduced by the asymmetric double-lattice structure.
- リンク情報
- ID情報
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- DOI : 10.1364/oe.461048
- eISSN : 1094-4087