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    • 2. 发明授权
    • Long-Wavelength VCSEL using buried bragg reflectors
    • 长波长VCSEL使用埋地布拉格反射器
    • US06252896B1
    • 2001-06-26
    • US09263696
    • 1999-03-05
    • Michael R. T. TanDubravko I. BabicScott W. CorzineTirmula R. RanganathShih-Yuan WangWayne Bi
    • Michael R. T. TanDubravko I. BabicScott W. CorzineTirmula R. RanganathShih-Yuan WangWayne Bi
    • H01S500
    • H01S5/426H01S5/0215H01S5/0216H01S5/041H01S5/18311H01S5/18369
    • An optically pumped vertical-cavity surface-emitting laser (VCSEL) device and a method of fabricating the device utilize two separate substrates that perform a filtering operation to selectively transmit only light having a long peak wavelength that is generated by the device. The optically pumped VCSEL device is a self-pumped device that can generate the pump light to drive the device to emit output laser light having a long peak wavelength. The optically pumped VCSEL device includes a short-wavelength VCSEL formed on one of the two substrates and a long-wavelength VCSEL formed on the other substrate. The short-wavelength VCSEL is a current-driven VCSEL that generates short-wavelength light to drive (i.e., optically pump) the long-wavelength VCSEL. The short-wavelength VCSEL and the long-wavelength VCSEL are bonded together such that the two substrates are separated by the two VCSELs. A transparent optical adhesive material or a metallic bonding material may be utilized to bond the short-wavelength VCSEL onto the long-wavelength VCSEL. The substrates are wavelength-selective with respect to propagating light, so that short-wavelength light generated by the short-wavelength VCSEL and not absorbed by the long-wavelength VCSEL is mostly absorbed by the two separate substrates. However, the long-wavelength light generated by the long-wavelength VCSEL is allowed to be transmitted through the substrates as output laser light.
    • 光泵浦垂直腔表面发射激光器(VCSEL)器件和制造该器件的方法利用执行滤波操作的两个分离的衬底,以仅选择性地仅透射由器件产生的具有长峰值波长的光。 光泵浦VCSEL器件是自泵浦器件,其可以产生泵浦光以驱动器件发射具有长峰值波长的输出激光。 光泵浦VCSEL器件包括形成在两个衬底中的一个上的短波长VCSEL和在另一衬底上形成的长波长VCSEL。 短波长VCSEL是产生短波长光以驱动(即光泵浦)长波长VCSEL的电流驱动VCSEL。 短波长VCSEL和长波长VCSEL被结合在一起,使得两个基板被两个VCSEL隔开。 可以使用透明光学粘合剂材料或金属粘合材料将短波长VCSEL粘合到长波长VCSEL上。 衬底相对于传播光是波长选择性的,使得由短波长VCSEL产生并且不被长波长VCSEL吸收的短波长光主要被两个分离的衬底吸收。 然而,由长波长VCSEL产生的长波长光被允许通过基板作为输出激光传输。
    • 5. 发明授权
    • Polarization-controlled VCSELs using externally applied uniaxial stress
    • 使用外部施加的单轴应力的极化控制VCSEL
    • US06188711B1
    • 2001-02-13
    • US08993006
    • 1997-12-18
    • Scott W. CorzineMichael R. T. TanAlbert T. YuenDubravko I. Babic
    • Scott W. CorzineMichael R. T. TanAlbert T. YuenDubravko I. Babic
    • H01S512
    • H01S5/18355H01S5/0607
    • A Vertical Cavity Surface-Emitting Laser (VCSEL) assembly in which the polarization is locked to a specified direction that is the same for all VCSELs. A VCSEL according to the present invention includes a VCSEL having a top mirror region, a bottom mirror region, a light generation region between the top and bottom mirror regions, a conducting substrate and a bottom electrode. The bottom mirror region is sandwiched between the conducting substrate and the light generation region, and the conducting substrate is sandwiched between the bottom electrode and the bottom mirror region. The assembly also includes a mounting substrate having top and bottom surfaces, the VCSEL being mechanically coupled to the mounting substrate. The mounting substrate includes a means for defining a first axis. The assembly includes a means for causing the mounting substrate to flex about the first axis thereby inducing a strain in the light generation region which locks the polarization into a mode determined by the first axis. In one embodiment of the present invention, the first axis is defined by a channel in the mounting substrate. The mounting substrate is caused to flex by the application of an adhesive layer applied between the mounting substrate and a mounting surface. The adhesive layer has a thermal coefficient of expansion different from the mounting substrate. In another embodiment, trenches whose direction defines the first axis are located in the top mirror region of the VCSEL.
    • 垂直腔表面发射激光(VCSEL)组件,其中偏振被锁定到对于所有VCSEL相同的指定方向。 根据本发明的VCSEL包括VCSEL,其具有顶部反射镜区域,底部反射镜区域,顶部和底部反射镜区域之间的发光区域,导电基底和底部电极。 底部反射镜区域夹在导电衬底和光产生区域之间,并且导电衬底夹在底部电极和底部镜像区域之间。 组件还包括具有顶表面和底表面的安装衬底,VCSEL机械地联接到安装衬底。 安装基板包括用于限定第一轴线的装置。 该组件包括用于使安装基板围绕第一轴弯曲的装置,从而在将偏振锁定为由第一轴确定的模式的光产生区域中引起应变。 在本发明的一个实施例中,第一轴由安装基板中的通道限定。 通过施加施加在安装基板和安装表面之间的粘合剂层,使安装基板挠曲。 粘合剂层具有与安装基板不同的热膨胀系数。 在另一个实施例中,其方向限定第一轴的沟槽位于VCSEL的顶部反射镜区域中。