摘要:
A method of fabricating a ridge VCSEL having a first stack of mirrors, a second stack of mirrors and an active area sandwiched therebetween, including the steps of depositing a metal layer, an etchable layer and a masking layer on the second stack, removing portions of the masking layer, the etchable layer and the metal layer to form a mask, using the mask to etch the second stack to form a mesa, removing portions of the etchable layer to expose the metal layer, depositing an additional metal layer on the side of the mesa and the exposed portion of the metal layer to define a light emitting area, removing the etchable and masking layers to expose the metal layer in the light emitting area, and removing the exposed portion of the metal layer to expose the light emitting area.
摘要:
A VCSEL (113) having a first and a second stack of distributed Bragg reflectors (120, 116) and an active region (118) is formed. Conductive layers (108 and 109) having an opening is formed on the second stack of distributed Bragg reflectors (116). A first region (104), a second region (106), and a third region (108) are formed in the opening of the conductive layer (108), thereby providing a contact to both the second stack of distributed Bragg reflectors (116) and to the first region (104). An insulative layer (220) is disposed on the substrate (124), thereby insulating the second region (106) from the conductive layer (108). A conductive layer (134) having second opening disposed substantially overlying the first opening, thereby electrically coupling the third region (108) to the conductive layer (134) with the second opening allowing a light (121) to pass.
摘要:
A portable electronic device including a display carrier detachably mounted to the portable electronic device. The display carrier including a plurality of display apparatus and an electronic display control. A data communication interface is provided between the display carrier and the portable electronic device for permitting data exchange between the plurality of display apparatus and the portable electronic device. The electronic display control, including a display management chip, controls the operation of the plurality of displays dependent upon the power source supplying power to the portable communication device.
摘要:
An apparatus for changing the phase of an optical storage medium changeable between a reflective phase and a dispersive phase. The apparatus including a quasi-multimode vertical cavity surface emitting laser constructed to provide a laser beam in a square shaped mode, to be directed onto the storage medium.
摘要:
A semiconductor laser package and method of fabrication including a vertical cavity surface emitting laser and a power monitoring system, such as a photodetector mounted on a mounting base. An optical element, such as a beam splitter, formed integral with the mounting base or as a separate element positioned on the mounting base in optical alignment with an emission generated by the vertical cavity surface emitting laser. The optical element characterized by reflecting a portion of the emission in the direction of the photodetector and allowing a portion of the emission to pass therethrough. An overmolded housing is positioned on the mounting base to enclose the vertical cavity surface emitting laser, the photodetector and the optical element.
摘要:
A semiconductor laser package including a mounting structure at least partially encapsulating a vertical cavity surface emitting laser and a photodetector. The vertical cavity surface emitting laser generating an emission along a path. The photodetector optically positioned and/or integrally formed with the vertical cavity surface emitting laser to receive a portion of the emission. An optical element is optionally positioned in the path, mounted on the mounting structure utilizing a snap-fit connection, a threaded or adhesive mounting. The mounting structure and optical element are fabricated to allow for proper z-axis alignment of the optical element relative to the laser emission aperture.
摘要:
A power monitoring system including a vertical cavity surface emitting laser generating an emission. A beam splitter optically positioned to receive the emission and split the emission into a first portion and a second portion. A monitor optically positioned to receive the first portion of the emission. An output of the monitor is used to control emissions of the vertical cavity surface emitting lasers.
摘要:
An optical module (100) having a first side (103) and a second side (104), a plurality of input optical ports (144) and an output optical port (120) is formed. The input optical ports (144) are disposed on the first side (103) with the output optical port (156) being disposed on the second side (104) of the optical module (100). A plurality of bifurcated waveguides (118) are disposed in the optical module, the bifurcated waveguides (118) coalesce light from the plurality of input optical ports (144) into a single high power output at the output optical port (120).
摘要:
A substrate having a first surface and a second surface, the first surface having a vertical cavity surface emitting laser disposed therein and second surface having a photodetector integrated disposed therein, wherein the vertical cavity surface emitting laser directs a light signal toward the photodetector.
摘要:
Patterned-mirrors for VCSELs are fabricated by forming a first mirror stack of a plurality of pairs of relatively high and low index of refraction layers, forming an active region of aluminum-free material on the first mirror stack, and forming a second mirror stack of a plurality of pairs of relatively high and low index of refraction layers. The second mirror stack includes first and second portions of materials selected to provide different rates of etching between the first and second portions. The second portion is selectively etched to the first portion by utilizing the first portion as an etch stop.