High power GaSb-based superluminescent diode with cascade cavity suppression waveguide geometry and ultra-low antireflection coating

doi:10.1063/5.0157235

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	High power GaSb-based superluminescent diode with cascade cavity suppression waveguide geometry and ultra-low antireflection coating
	T. Wang, C. Yang, Y. Chen, J. Shi, H. Yu, X. Su, Y. Zhang, Y. Zhao, C. Tong, D. Wu, Y. Xu, H. Ni and Z. Niu
	2023
发表期刊	Applied Physics Letters
ISSN	00036951
卷号	123 期号:2
摘要	We report on a GaSb-based superluminescent diode optimized for high-power broadband operation around a wavelength of 2 μm. The high optical power was achieved by the high-quality epitaxial InGaSb/AlGaAsSb type-I quantum well gain material, which was processed into a double-pass amplification configuration. To prevent lasing at high current injection while enabling strong amplified spontaneous emission, a cascade cavity suppression waveguide geometry was designed to connect the vertical rear facet with the reflectivity-suppressed angled front facet. A Ta2O5/SiO2 ultra-low antireflection coating with a minimum reflectivity of 0.04% was applied to the front facet for further cavity suppression. This combination allowed the superluminescent diodes to demonstrate a record high single-transverse-mode output power of up to 152 mW under continuous-wave operation at room temperature, with a broad spectral band of 42 nm full width at half maximum. A 25% promotion in optical power has been realized compared to current state-of-the-art devices in this wavelength range, without sacrificing spectral bandwidth. The high-power spectral density characteristics, along with a good beam quality, are well suited for absorption spectroscopy applications and hybrid integration with silicon technology. © 2023 Author(s).
DOI	10.1063/5.0157235
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收录类别	sci ; ei
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/67963
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	T. Wang, C. Yang, Y. Chen, J. Shi, H. Yu, X. Su, Y. Zhang, Y. Zhao, C. Tong, D. Wu, Y. Xu, H. Ni and Z. Niu. High power GaSb-based superluminescent diode with cascade cavity suppression waveguide geometry and ultra-low antireflection coating[J]. Applied Physics Letters,2023,123(2).
APA	T. Wang, C. Yang, Y. Chen, J. Shi, H. Yu, X. Su, Y. Zhang, Y. Zhao, C. Tong, D. Wu, Y. Xu, H. Ni and Z. Niu.(2023).High power GaSb-based superluminescent diode with cascade cavity suppression waveguide geometry and ultra-low antireflection coating.Applied Physics Letters,123(2).
MLA	T. Wang, C. Yang, Y. Chen, J. Shi, H. Yu, X. Su, Y. Zhang, Y. Zhao, C. Tong, D. Wu, Y. Xu, H. Ni and Z. Niu."High power GaSb-based superluminescent diode with cascade cavity suppression waveguide geometry and ultra-low antireflection coating".Applied Physics Letters 123.2(2023).

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