Controlling polarization of vertical-cavity surface-emitting lasers using amorphous silicon subwavelength transmission gratings

Steven J. Schablitsky; Lei Zhuang; Rick C. Shi; Stephen Y. Chou

doi:10.1063/1.118126

Controlling polarization of vertical-cavity surface-emitting lasers using amorphous silicon subwavelength transmission gratings

Steven J. Schablitsky, Lei Zhuang, Rick C. Shi, Stephen Y. Chou

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

61 Scopus citations

Abstract

Control of the polarization of vertical-cavity surface-emitting lasers (VCSELs) using a 240-nm-thick amorphous silicon subwavelength transmission grating (SWTG) is demonstrated. The grating, which has a strong polarization dependent reflectance and transmittance, was placed in front of the output window of a VCSEL. It was found that the SWTG can fix the VCSEL's polarization in the direction perpendicular to the grating fingers, switch polarization directions, enhance the polarization ratio from 20:1 to over 200:1, and decrease the threshold current. Integration of these gratings into the VCSEL structure is discussed.

Original language	English (US)
Pages (from-to)	7-9
Number of pages	3
Journal	Applied Physics Letters
Volume	69
Issue number	1
DOIs	https://doi.org/10.1063/1.118126
State	Published - Jul 1 1996
Externally published	Yes

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1063/1.118126

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title = "Controlling polarization of vertical-cavity surface-emitting lasers using amorphous silicon subwavelength transmission gratings",

abstract = "Control of the polarization of vertical-cavity surface-emitting lasers (VCSELs) using a 240-nm-thick amorphous silicon subwavelength transmission grating (SWTG) is demonstrated. The grating, which has a strong polarization dependent reflectance and transmittance, was placed in front of the output window of a VCSEL. It was found that the SWTG can fix the VCSEL's polarization in the direction perpendicular to the grating fingers, switch polarization directions, enhance the polarization ratio from 20:1 to over 200:1, and decrease the threshold current. Integration of these gratings into the VCSEL structure is discussed.",

author = "Schablitsky, {Steven J.} and Lei Zhuang and Shi, {Rick C.} and Chou, {Stephen Y.}",

year = "1996",

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T1 - Controlling polarization of vertical-cavity surface-emitting lasers using amorphous silicon subwavelength transmission gratings

AU - Schablitsky, Steven J.

AU - Zhuang, Lei

AU - Shi, Rick C.

AU - Chou, Stephen Y.

PY - 1996/7/1

Y1 - 1996/7/1

N2 - Control of the polarization of vertical-cavity surface-emitting lasers (VCSELs) using a 240-nm-thick amorphous silicon subwavelength transmission grating (SWTG) is demonstrated. The grating, which has a strong polarization dependent reflectance and transmittance, was placed in front of the output window of a VCSEL. It was found that the SWTG can fix the VCSEL's polarization in the direction perpendicular to the grating fingers, switch polarization directions, enhance the polarization ratio from 20:1 to over 200:1, and decrease the threshold current. Integration of these gratings into the VCSEL structure is discussed.

AB - Control of the polarization of vertical-cavity surface-emitting lasers (VCSELs) using a 240-nm-thick amorphous silicon subwavelength transmission grating (SWTG) is demonstrated. The grating, which has a strong polarization dependent reflectance and transmittance, was placed in front of the output window of a VCSEL. It was found that the SWTG can fix the VCSEL's polarization in the direction perpendicular to the grating fingers, switch polarization directions, enhance the polarization ratio from 20:1 to over 200:1, and decrease the threshold current. Integration of these gratings into the VCSEL structure is discussed.

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Controlling polarization of vertical-cavity surface-emitting lasers using amorphous silicon subwavelength transmission gratings

Abstract

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