| Study on external-cavity semiconductor laser |
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| 作者姓名： | 金杰 焦强 李奕 吕福云 张光寅 |
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| 作者单位： | College of Electronic Information Engineering，Tianjin University，Tianjin 300072，Radio Factory，Tianijn University，Tianjin 300072，College of Electronic Information Engineering，Tianjin University，Tianjin 300072，Institute of Physics，Nankai University，Tianjin 300071，Institute of Physics，Nankai University，Tianjin 300071 |
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| 基金项目： | This work was supported by the Natural Science Foundation of Tianjin under Grant No. 993600711 and Doctor Foundation of Hebei. |
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| 摘 要： | In this paper, a narrow-band tunable external-cavity semiconductor laser with the Littman set-up is reported. The laser system consists of a semiconductor laser, a blazed grating and an external mirror. Its sideband suppression ratio over 20 dB was obtained. Conveniently tuning in wavelength region of 797.38 - 807.26 nm was achieved. The laser is operating in single frequency with narrow linewidth smaller than 0.06 nm. The output beam has good directional stability when tuned.
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Study on external-cavity semiconductor laser |
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| Abstract: | In this paper, a narrow-band tunable external-cavity semiconductor laser with the Littman set-up isreported. The laser system consists of a semiconductor laser, a blazed grating and an external mirror.Its sideband suppression ratio over 20 dB was obtained. Conveniently tuning in wavelength region of797.38 - 807.26 nm was achieved. The laser is operating in single frequency with narrow linewidth smallerthan 0.06 nm. The output beam has good directional stability when tuned. |
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