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    • 6. 发明申请
    • VERTICAL-CAVITY SURFACE-EMITTING LASERS
    • 垂直孔表面发射激光
    • US20140211822A1
    • 2014-07-31
    • US14342762
    • 2011-09-15
    • David A. FattalMichael Renne Ty TanRaymond G. Beausoleil
    • David A. FattalMichael Renne Ty TanRaymond G. Beausoleil
    • H01S5/183H01S5/187
    • H01S5/183H01S5/105H01S5/1833H01S5/18358H01S5/18363H01S5/187H01S5/4087H01S5/423
    • 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.
    • 公开了垂直腔表面发射激光器(“VCSEL”)和VCSEL阵列。 一方面,表面发射激光器包括具有亚波长光栅的光栅层,以形成具有用于从发光层发射的波长的反射层的谐振腔和设置在谐振腔内的孔层 腔。 VCSEL包括设置在光栅层和发光层之间的电荷载流子传输层。 传输层具有与亚波长光栅相邻的间隙和间隙和发光层之间的间隔区。 间隔区域和间隙被确定为对波长基本上是透明的。 孔径层引导电荷载流子进入邻近孔径层中的孔的发光层的区域,并且该孔限制要从发光层发射的光学模式。