Gain spectral narrowing of semiconductor laser based on dual-core vertical coupler structure

Luo, Chanchan; Wang, Jie; Qiu, Bocang; Liu, Jiwan; Tong, Hengyi; Zhang, Ruiying

doi:10.1016/j.optcom.2020.126166

Cited by 1 publication

(1 citation statement)

References 19 publications

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“…In 2019, Stefanos et al in the TU/e [79] used MRR as an internal cavity to improve the wavelength selectivity and achieved a InP-based monolithic integration laser with a linewidth of 63 kHz. Our team have adopted a dual-core vertical coupling structure to compensate for the loss in the passive waveguide [80] , meanwhile, amplified spontaneous emission noise can be filtered due to their gain narrowing phenomenon [81] . Based on this and our proposed structure, kHz-level monolithic integrated narrow linewidth semiconductor lasers are expected [82,83] .…”

Section: Summary and Prospectmentioning

confidence: 99%

Waveguide external cavity narrow linewidth semiconductor lasers

et al. 2021

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Narrow linewidth light source is a prerequisite for high-performance coherent optical communication and sensing. Waveguide-based external cavity narrow linewidth semiconductor lasers (WEC-NLSLs) have become a competitive and attractive candidate for many coherent applications due to their small size, volume, low energy consumption, low cost and the ability to integrate with other optical components. In this paper, we present an overview of WEC-NLSLs from their required technologies to the state-of-the-art progress. Moreover, we highlight the common problems occurring to current WEC-NLSLs and show the possible approaches to resolving the issues. Finally, we present the possible development directions for the next phase and hope this review will be beneficial to the advancements of WEC-NLSLs.

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Section: Summary and Prospectmentioning

confidence: 99%