Laser & Optoelectronics Progress, Volume. 52, Issue 7, 71402(2015)

Polarization Properties of Rectangle-Shape VCSEL with Asymmetrical Current Injection

Li XiuShan1,2、*, Ning Yongqiang1, Cui Jingjiang3, Zhang Xing1, Jia Peng1,2, Huang Youweng1,2, Zhong Chuyu1,2, Qin Li1, Liu Yun1, and Wang Lijun1
Author Affiliations
  • 1[in Chinese]
  • 2[in Chinese]
  • 3[in Chinese]
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    In order to obtain stable polarization laser, asymmetrical current injection into rectangle-shape vertical cavity surface emitting laser (ACIR-VCSEL) with oxidation aperture dimension of 70 μm × 10 μm is studied and manufactured. Room temperature (RT) continuous-wave (CW) light-current-voltage characteristics of a VCSEL described above are tested. Slope efficiency is 0.483 W/A with differential series resistance of 23.5 W. The orthogonal polarization suppression ratio is more than 5 over the whole range of operating current. The maximum power polarization ratio is 14 at current of 15 mA. Ring current injection into rectangular VCSEL (RCIR-VCSEL) with the same oxidation aperture dimensions of ACIR-VCSEL is also studied as a comparison. In the same test conditions, the slope efficiency is 0.568 W/A with differential series resistance of 18.1 W. The minimum orthogonal polarization suppression ratio is more than 2.6 over the whole range of operating current and the maximum power polarization ratio is 9. For ACIR-VCSEL, although the slope efficiency is a little decrease and the differential series resistance increases, the maximum polarization ratio effectively increases and more stable polarization is achieved.

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    Li XiuShan, Ning Yongqiang, Cui Jingjiang, Zhang Xing, Jia Peng, Huang Youweng, Zhong Chuyu, Qin Li, Liu Yun, Wang Lijun. Polarization Properties of Rectangle-Shape VCSEL with Asymmetrical Current Injection[J]. Laser & Optoelectronics Progress, 2015, 52(7): 71402

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    Paper Information

    Category: Lasers and Laser Optics

    Received: Mar. 1, 2015

    Accepted: --

    Published Online: Jun. 26, 2015

    The Author Email: XiuShan Li (jinglexiushan@163.com)

    DOI:10.3788/lop52.071402

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