中国物理B ›› 2022, Vol. 31 ›› Issue (8): 84203-084203.doi: 10.1088/1674-1056/ac5391

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Spatial and spectral filtering of tapered lasers by using tapered distributed Bragg reflector grating

Jing-Jing Yang(杨晶晶), Jie Fan(范杰), Yong-Gang Zou(邹永刚),Hai-Zhu Wang(王海珠), and Xiao-Hui Ma(马晓辉)   

  1. State Key Laboratory of High Power Semiconductor Laser, Changchun University of Science and Technology, Changchun 130022, China
  • 收稿日期:2021-10-14 修回日期:2022-01-15 接受日期:2022-02-10 出版日期:2022-07-18 发布日期:2022-07-23
  • 通讯作者: Jie Fan, Xiao-Hui Ma E-mail:fanjie@cust.edu.cn;mxh@cust.edu.cn
  • 基金资助:
    Project supported by Jilin Science and Technology Development Plan, China (Grant Nos. 20210201030GX and 20190302052GX).

Spatial and spectral filtering of tapered lasers by using tapered distributed Bragg reflector grating

Jing-Jing Yang(杨晶晶), Jie Fan(范杰), Yong-Gang Zou(邹永刚),Hai-Zhu Wang(王海珠), and Xiao-Hui Ma(马晓辉)   

  1. State Key Laboratory of High Power Semiconductor Laser, Changchun University of Science and Technology, Changchun 130022, China
  • Received:2021-10-14 Revised:2022-01-15 Accepted:2022-02-10 Online:2022-07-18 Published:2022-07-23
  • Contact: Jie Fan, Xiao-Hui Ma E-mail:fanjie@cust.edu.cn;mxh@cust.edu.cn
  • Supported by:
    Project supported by Jilin Science and Technology Development Plan, China (Grant Nos. 20210201030GX and 20190302052GX).

摘要: A 1040 nm tapered laser with tapered distributed Bragg reflector (DBR) grating is designed and fabricated. By designing the grating with tapered layout, the tapered DBR grating exhibits the scattering effect on side backward-traveling waves, thus achieving additional suppression of parasitic oscillation. Under the suppression of parasitic oscillation, the spatial and spectral characteristics of the tapered laser are improved. The experimental results show that a near-Gaussian far-field distribution and a kink-free P-I characteristics are achieved, and a single peak emission with a wavelength of 1046.84 nm and a linewidth of 56 pm is obtained.

关键词: tapered lasers, distributed Bragg reflector, backward-traveling wave, parasitic oscillation

Abstract: A 1040 nm tapered laser with tapered distributed Bragg reflector (DBR) grating is designed and fabricated. By designing the grating with tapered layout, the tapered DBR grating exhibits the scattering effect on side backward-traveling waves, thus achieving additional suppression of parasitic oscillation. Under the suppression of parasitic oscillation, the spatial and spectral characteristics of the tapered laser are improved. The experimental results show that a near-Gaussian far-field distribution and a kink-free P-I characteristics are achieved, and a single peak emission with a wavelength of 1046.84 nm and a linewidth of 56 pm is obtained.

Key words: tapered lasers, distributed Bragg reflector, backward-traveling wave, parasitic oscillation

中图分类号:  (Semiconductor lasers; laser diodes)

  • 42.55.Px
42.60.Jf (Beam characteristics: profile, intensity, and power; spatial pattern formation)