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    • Denggle > Lighting News >

    Dissection Of Infrared Laser And VCSEL Technology

    Dissection Of Infrared Laser And VCSEL Technology

    Source： http://www.ledinside.com/ 03 Jan 2018
    Osram Apple Epistar

     In recent years, VCSEL has been increasingly applied in the consumer market, such as distance sensing, autofocus, 3D sensing (structured light and time of flight) and so on, and numbers of tech firms are scramble for VCSEL technology.

     

     VCSEL (vertical-cavity surface-emitting laser) technology has been at the center stage in the tech world of late, in the wake of the debut of the new iPhone X, which contains a 3D sensing module with VCSELs as its core components. Their importance even made Apple fork over quite an amount of money to secure some of the VCSEL shipment from Finisar, a laser chip producer.

     

    The strong support of Apple has made VCSEL a shining star in the tech world, although it, an infrared laser technology, is by no means a new technology, with its birth dating back to the 1980s and commercialization in 1996.

     

    Dissection of infrared laser and VCSEL technology

    Compared with infrared LED, infrared laser boasts the merits of resonant cavity design, small angle for light divergence, high light-power conversion efficiency, and rapid data transmission. It is harmless to the eyes, thanks to the employment of pulsed light in product design. Along with technological progresses, infrared red laser has been increasingly applied in sensing components, with its application having been extended from industrial use to commercial and consumer markets.  

     

    Types of infrared laser contain VCSEL and EEL, with the former possessing the advantages of the potential of low critical current, optical beam featuring round symmetry, high light-power conversion efficiency, and lighting source with coherence and high directivity.

     

    VCSEL has tremendous potential in the consumer and auto markets

    In recent years, VCSEL has been increasingly applied in the consumer market, including distance sensing, autofocus, 3D sensing (structured light and time of flight), iris recognition, and air- and water-quality detection. Among them, the application fields of 3D sensing include residential automation, robot, wearables, computer, gaming, TV, vehicles, biological recognition, and wearables.

     

    In addition, VCSEL can remove speckles, has a symmetric round beam facilitating control of lighting angle via lens, and can offer high-resolution image for auto night-vision lighting, promising considerable potential for auto application.

     

    Dissection of infrared laser and VCSEL technology

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    Before：Hybrid Quantum Dot Light Emitting Electrochemical Cells
    Next：3D Facial Recognition Apply in Technology Ecosystems

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