摘要:
A semiconductive substrate (101) with a surface (102) having a first stack of distributed Bragg reflectors (109) disposed on the surface (102) of the semiconductive substrate (101). A first transition region (140) is disposed on the first stack of distributed Bragg reflectors (109) with a first cladding region (113) being disposed on the first transition region (140). An active area (117) is disposed on the first cladding region (113) with a second cladding region (123) being disposed on the active area (117). A second transition region (145) having a layer (255) of aluminum arsenide is disposed on the second cladding region (123) with a second stack of distributed Bragg reflectors (127) being disposed on the second transition region (145).
摘要:
A power monitoring system including a first substrate having a first vertical cavity surface emitting laser and a second vertical cavity surface emitting laser formed thereon and being generally identical. A second substrate having a photodiode formed thereon. The second substrate is flip chip mounted on the first substrate with the photodiode in optical alignment the second vertical cavity surface emitting laser. The output of the photodiode is used to control emissions of the first and second vertical cavity surface emitting lasers.
摘要:
An optical pick-up head for reading information from a data storage medium, the pick-up head including a VCSEL for emitting a beam of light with a focusing element for directing the beam of light onto the data storage medium and a light receiving element for receiving light reflected from the data storage medium and tracking element for positioning the beam.
摘要:
An integrated electro-optical package (50) including a first light emitting device (LED) display chip (28) and at least one additional LED display chip (30), each composed of an optically transparent substrate (10) with an array (15) of LEDs (12) formed thereon and cooperating to generate a complete image. The LEDs (12) of the first LED display chip (28) are constructed to emit light of a wavelength different than the light emitted by the additional LED display chip(s) (30), thereby creating a different color menu or object bar (156) within the view (150) generated. A mounting substrate (25), having connection pads (32), bump bonded to the pads on the optically transparent substrate (10). A driver substrate (55) having connections to the pads (32) on the mounting substrate (25). A plurality of driver and control circuits (57) connected to the LED display chips (28) and (30) through electrodes on the driver substrate (55). A lens (73) in alignment with the LED display chips (28) and (30) to magnify the complete images and produce an easily viewable virtual image.
摘要:
A VCSEL for emitting long wavelength light including a first mirror stack lattice matched to the surface of a substrate and including mirror pairs in a II-VI material system, an InP based active region lattice matched to a surface of the first mirror stack, and a second mirror stack lattice matched to a surface of the active region and including mirror pairs in a II-VI material system. An electrical contact is coupled to a surface of the active region and an electrical contact is positioned on another surface of the active region. In a specific embodiment the II-VI material system includes ZnCdSe/MgZnCdSe.
摘要:
A microcavity LED with photon recycling including a substrate having at least one layer of material positioned thereon, and a first cladding layer, a second cladding layer and an active region sandwiched therebetween forming a mesa on the layer of material. The mesa has generally vertical sides and an upper surface with an electrically conductive and light reflective system positioned on the vertical sides of the mesa and partially covering the upper surface to form a first electrical contact for the LED, the electrically conductive and light reflective system defining a centrally located light emitting opening on the surface of the mesa, the mesa having a diametric dimension of the surface greater than one time larger than a diametric dimension of the opening.
摘要:
An article and method for making a vertical cavity surface emitting laser (101) is provided. The vertical cavity surface emitting laser includes a semiconductor substrate (102) having a first surface (105) on which a first set of distributed Bragg reflectors (103) are deposited. The distributed Bragg reflectors (103) are made of alternating layers of indium aluminum gallium phosphide and aluminum arsenide. An active region (106) is disposed on the distributed Bragg reflectors with a subsequent of and active region (106) and another cladding region (107). Another distributed Bragg reflector (103) is deposited on cladding region (107).
摘要:
A substrate (102) having a surface (103) with a first stack of distributed Bragg reflectors (106), a first cladding region (107), an active region (108), a second cladding region (109), a second stack of distributed Bragg reflectors (110), and a contact region (111) is provided. A mesa (131) with a surface (133) and a trench (136) is formed. A first dielectric layer (122) is formed overlying substrate (102) and covering a portion of trench (136). A second dielectric layer (128) is formed on surface (133) of mesa (131). A seed layer (126) having a pattern is formed, with the pattern of seed layer (126) having an opening on a portion of second dielectric layer (128) of mesa (131). A metal is selectively plated on seed layer (126), thereby generating a layer (204) on seed layer (126) for removal of heat from VCSEL (101).
摘要:
A switchable lens/diffuser including an optical component constructed to form an optical image in cooperation with light directed thereon and a layer of polymer dispersed liquid crystal material having a clear state and a diffusing state, the layer of material being positioned in conjunction with the optical component so that the optical component forms an optical image when the layer of polymer dispersed liquid crystal material is in the clear state and the layer of polymer dispersed liquid crystal material serves as a diffusing screen to form an image in cooperation with the light directed thereon in the diffusing state.
摘要:
An article and method for making a plastic molded optoelectronic interface are provided. A leadframe having a first segment and a second segment with the first segment having a first tab and the second segment having a second tab is provided. The first and the second tabs extend away from the first segment and the second segment, respectively, and toward each other. The first segment and the second segment are positioned in a parallel configuration with the first and second tabs pointing toward each other. A first optical portion having a reflective surface with an angle is formed between the first tab of the first segment and the second tab of the second segment. A second optical portion that surrounds the first optical portion is formed.