Stable polarization control of 980 nm high-power vertical-cavity surface-emitting lasers using sub-wavelength rectangular-metal-gratings

Xiang Wei Zhang, Yong Qiang Ning, Li Qin, Yun Liu, Li Jun Wang

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

The polarization control of vertical-cavity surface-emitting lasers with high power emission is demonstrated by using metal-grating to import non-isotropic gain. The grating with a period of 186 nm and a duty ratio of 0.5 was fabricated on the GaAs-cap layer to provide additional reflectance for TE polarization. The pairs of p-DBRs were reduced and the GaAs-cap between grating stripes was etched to force the current to be injected linearly along grating stripes to realize the maximum non-isotropic gain. A polarization ratio of 4.8, an output power of 780 mW and high temperature performance were demonstrated for a 550 μm aperture device.

Original languageEnglish
Pages (from-to)1188-1193
Number of pages6
JournalFaguang Xuebao/Chinese Journal of Luminescence
Volume34
Issue number9
DOIs
StatePublished - Sep 2013
Externally publishedYes

Keywords

  • Metal-grating
  • Polarization controlling
  • Vertical-cavity surface-emitting laser

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