Programmable Multi-Wavelength Distributed Feedback Laser Array Integrated in Liquid Crystal Polymer Waveguide DOI

Zhaoyi Wang,

Peizhi Sun,

Conglong Yuan

et al.

Optics Letters, Journal Year: 2024, Volume and Issue: 49(20), P. 5707 - 5707

Published: Sept. 16, 2024

Liquid crystal (LC) distributed feedback (DFB) lasers hold significant potential for integrated photonics applications. However, limitations in wavelength spacing switching, device size, and compatibility with other technologies have impeded advancements of the LC DFB laser integration responsiveness. Herein, we propose a thin-film multi-wavelength array utilizing high-resolution patterned programmable nematic polymers, enabling rapid switching between division multiplexing channels while maintaining stable single longitudinal mode (SLM) each laser. The underlying physical mechanism involves modulating effective refractive index by varying molecules’ orientation angles adjacent regions grating to achieve modulation. Additionally, specialized waveguide design connects lasers, facilitating modulation as well straight-line bending propagation Furthermore, demonstrates relatively low energy threshold, its applications high-integration scenarios.

Language: Английский

Programmable Multi-Wavelength Distributed Feedback Laser Array Integrated in Liquid Crystal Polymer Waveguide DOI

Zhaoyi Wang,

Peizhi Sun,

Conglong Yuan

et al.

Optics Letters, Journal Year: 2024, Volume and Issue: 49(20), P. 5707 - 5707

Published: Sept. 16, 2024

Liquid crystal (LC) distributed feedback (DFB) lasers hold significant potential for integrated photonics applications. However, limitations in wavelength spacing switching, device size, and compatibility with other technologies have impeded advancements of the LC DFB laser integration responsiveness. Herein, we propose a thin-film multi-wavelength array utilizing high-resolution patterned programmable nematic polymers, enabling rapid switching between division multiplexing channels while maintaining stable single longitudinal mode (SLM) each laser. The underlying physical mechanism involves modulating effective refractive index by varying molecules’ orientation angles adjacent regions grating to achieve modulation. Additionally, specialized waveguide design connects lasers, facilitating modulation as well straight-line bending propagation Furthermore, demonstrates relatively low energy threshold, its applications high-integration scenarios.

Language: Английский

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