The design and analysis of sub-wavelength metal-grating large-aperture VCSELs

X. W. Zhang; Y. Q. Ning; L. Qin; Y. Liu; L. J. Wang

doi:10.1007/s00340-012-5214-3

The design and analysis of sub-wavelength metal-grating large-aperture VCSELs

X. W. Zhang, Y. Q. Ning, L. Qin, Y. Liu, L. J. Wang

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

The polarization control of vertical-cavity surface- emitting lasers with high power emission has been 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 H-polarization. The pairs of P-distributed Bragg reflectors were reduced to realize the maximum difference threshold gain of two orthogonal polarizations. A polarization ratio of 3 with an output power of 860 mW at continuous-wave operation was demonstrated at room temperature, and the high-order modes were suppressed. As a result, the far-field beam divergence was suppressed to 12°.

Original language	English
Pages (from-to)	171-175
Number of pages	5
Journal	Applied Physics B: Lasers and Optics
Volume	109
Issue number	1
DOIs	https://doi.org/10.1007/s00340-012-5214-3
State	Published - Oct 2012
Externally published	Yes

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abstract = "The polarization control of vertical-cavity surface- emitting lasers with high power emission has been 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 H-polarization. The pairs of P-distributed Bragg reflectors were reduced to realize the maximum difference threshold gain of two orthogonal polarizations. A polarization ratio of 3 with an output power of 860 mW at continuous-wave operation was demonstrated at room temperature, and the high-order modes were suppressed. As a result, the far-field beam divergence was suppressed to 12°.",

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AU - Zhang, X. W.

AU - Ning, Y. Q.

AU - Qin, L.

AU - Liu, Y.

AU - Wang, L. J.

PY - 2012/10

Y1 - 2012/10

N2 - The polarization control of vertical-cavity surface- emitting lasers with high power emission has been 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 H-polarization. The pairs of P-distributed Bragg reflectors were reduced to realize the maximum difference threshold gain of two orthogonal polarizations. A polarization ratio of 3 with an output power of 860 mW at continuous-wave operation was demonstrated at room temperature, and the high-order modes were suppressed. As a result, the far-field beam divergence was suppressed to 12°.

AB - The polarization control of vertical-cavity surface- emitting lasers with high power emission has been 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 H-polarization. The pairs of P-distributed Bragg reflectors were reduced to realize the maximum difference threshold gain of two orthogonal polarizations. A polarization ratio of 3 with an output power of 860 mW at continuous-wave operation was demonstrated at room temperature, and the high-order modes were suppressed. As a result, the far-field beam divergence was suppressed to 12°.

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The design and analysis of sub-wavelength metal-grating large-aperture VCSELs

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