发明名称 |
VERTICAL-CAVITY SURFACE-EMITTING LASERS |
摘要 |
Vertical-cavity surface-emitting lasers (“VCSELs”) and VCSEL arrays are disclosed. In one aspect, a surface-emitting laser includes a grating layer having a sub-wavelength grating to form a resonant cavity with a reflective layer for a wavelength of light to be emitted from a light-emitting layer and an aperture layer disposed within the resonant cavity. The VCSEL includes a charge carrier transport layer disposed between the grating layer and the light-emitting layer. The transport layer has a gap adjacent to the sub-wavelength grating and a spacer region between the gap and the light-emitting layer. The spacer region and gap are dimensioned to be substantially transparent to the wavelength. The aperture layer directs charge carriers to enter a region of the light-emitting layer adjacent to an aperture in the aperture layer and the aperture confines optical modes to be emitted from the light-emitting layer. |
申请公布号 |
US2014211822(A1) |
申请公布日期 |
2014.07.31 |
申请号 |
US201114342762 |
申请日期 |
2011.09.15 |
申请人 |
Fattal David A.;Ty Tan Michael Renne;Beausoleil Raymond G. |
发明人 |
Fattal David A.;Ty Tan Michael Renne;Beausoleil Raymond G. |
分类号 |
H01S5/183;H01S5/187 |
主分类号 |
H01S5/183 |
代理机构 |
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代理人 |
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主权项 |
1. A surface-emitting laser including:
a grating layer having a sub-wavelength grating to form a resonant cavity with a reflective layer for a wavelength of light to be emitted from a light-emitting layer; an aperture layer having an aperture, the aperture layer disposed within the resonant cavity; and a charge carrier transport layer disposed between the grating layer and the light-emitting layer, the transport layer having a gap adjacent to the sub-wavelength grating and a spacer region between the gap and the light-emitting layer, the spacer region and gap dimensioned to be substantially transparent to the wavelength, the aperture layer to direct charge carriers to enter a region of the light-emitting layer adjacent to the aperture, and the aperture to confine optical modes to be emitted from the light-emitting layer. |
地址 |
Mountain View CA US |