Linear polarization and narrow-linewidth external-cavity semiconductor laser based on birefringent Bragg grating optical feedback

doi:10.1016/j.optlastec.2023.110211

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	Linear polarization and narrow-linewidth external-cavity semiconductor laser based on birefringent Bragg grating optical feedback
	J. Q. Chen, C. Chen, Q. Guo, J. J. Sun, J. W. Zhang, Y. L. Zhou, Z. H. Liu, Y. S. Yu, L. Qin, Y. Q. Ning and L. J. Wang
	2024
Source Publication	Optics and Laser Technology
ISSN	0030-3992
Volume	170 Pages:7
Abstract	We demonstrate an external-cavity semiconductor laser (ECSL) with linear polarization and a narrow linewidth. A birefringent Bragg grating prepared by a femtosecond laser point-by-point technique in a polarization-maintaining fiber (PMF) is used to provide external-cavity feedback, and its polarization-dependent characteristics enable selection of the main polarization mode and linewidth narrowing of the ridge waveguide emission gain chip (GC). This compact and robust ECSL achieves an output power of > 60 mW and a polarization extinction ratio (PER) of > 30 dB. We simulate and calculate the linewidth and injection current, while a Lorentz linewidth of 2.58 kHz is obtained based on delayed self-heterodyne beat frequency measurement. This flexible and cost-effective solution allows realization of a compact ECSL with linear polarization and a narrow linewidth.
DOI	10.1016/j.optlastec.2023.110211
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Indexed By	sci
Language	英语
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Document Type	期刊论文
Identifier	http://ir.ciomp.ac.cn/handle/181722/67371
Collection	中国科学院长春光学精密机械与物理研究所
Recommended Citation GB/T 7714	J. Q. Chen, C. Chen, Q. Guo, J. J. Sun, J. W. Zhang, Y. L. Zhou, Z. H. Liu, Y. S. Yu, L. Qin, Y. Q. Ning and L. J. Wang. Linear polarization and narrow-linewidth external-cavity semiconductor laser based on birefringent Bragg grating optical feedback[J]. Optics and Laser Technology,2024,170:7.
APA	J. Q. Chen, C. Chen, Q. Guo, J. J. Sun, J. W. Zhang, Y. L. Zhou, Z. H. Liu, Y. S. Yu, L. Qin, Y. Q. Ning and L. J. Wang.(2024).Linear polarization and narrow-linewidth external-cavity semiconductor laser based on birefringent Bragg grating optical feedback.Optics and Laser Technology,170,7.
MLA	J. Q. Chen, C. Chen, Q. Guo, J. J. Sun, J. W. Zhang, Y. L. Zhou, Z. H. Liu, Y. S. Yu, L. Qin, Y. Q. Ning and L. J. Wang."Linear polarization and narrow-linewidth external-cavity semiconductor laser based on birefringent Bragg grating optical feedback".Optics and Laser Technology 170(2024):7.

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