Search for dissertations about: "vertical-cavity surface-emitting laser"

Showing result 1 - 5 of 27 swedish dissertations containing the words vertical-cavity surface-emitting laser.

  1. 1. High Speed Vertical Cavity Surface Emitting Lasers for Short Reach Communication

    Author : Petter Westbergh; [2011]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; high speed modulation; GaAs; Semiconductor laser; InGaAs; vertical cavity surface emitting laser VCSEL ; laser dynamics; fabrication;

    Abstract : The vertical cavity surface emitting laser (VCSEL) is a low cost light source with attractive performance characteristics such as low power consumption, high speed capabilities at low currents, and a circular output beam. These features have made the VCSEL an established component in digital communication networks, particularly in short reach optical data transmission applications where links consisting of GaAs-based 850nm VCSELs and multimode fiber have become the standard solution. READ MORE

  2. 2. Vertical-Cavity Surface-Emitting Lasers: Large Signal Dynamics and Silicon Photonics Integration

    Author : Emanuel Haglund; [2016]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; vertical-cavity surface-emitting laser VCSEL .; silicon photonics; high-speed modulation; semiconductor lasers; optical interconnects; laser dynamics; large signal modulation; Heterogeneous integration;

    Abstract : The GaAs-based vertical-cavity surface-emitting laser (VCSEL) is the standard light source in today's optical interconnects, due to its energy efficiency, low cost, and high speed already at low drive currents. The latest commercial VCSELs operate at data rates of up to 28 Gb/s, but it is expected that higher speeds will be required in the near future. READ MORE

  3. 3. Optical Guiding and Feedback in Gallium Nitride Based Vertical Cavity Surface Emitting Lasers

    Author : Seyed Ehsan Hashemi; [2015]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; antiguiding; vertical-cavity surface-emitting laser; gallium nitride laser; TiO2 high contrast grating;

    Abstract : The gallium-nitride (GaN) semiconductor material has been the core of the revolutionary breakthroughs during the last two decades in the lighting industry, by enabling manufacturing of efficient blue light emitting diodes (LEDs), for which the 2014 Nobel prize in physics was awarded. The GaN technology has further led to violet edge-emitting lasers (EELs), enabling the Blu-ray disk technology, and also to the commercialization of directly green emitting EELs. READ MORE

  4. 4. Design, Fabrication, and Evaluation of High-Speed Vertical-Cavity Surface-Emitting Lasers

    Author : Petter Westbergh; [2009]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; semiconductor laser; high speed modulation; fabrication; vertical-cavity surface-emitting lasers VCSELs ;

    Abstract : The vertical-cavity surface-emitting laser (VCSEL) is a low cost light source with inherent high speed capabilities. These properties, along with low power consumption and a circular output beam, have made the VCSEL a well established component in digital communication networks, particularly in short reach optical data transmission where links consisting of GaAs-based 850nm VCSELs and multimode fiber have become the standard solution. READ MORE

  5. 5. GaAs based Vertical-Cavity Surface-Emitting Transistor-Lasers

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Yu Xiang; KTH.; [2014]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electrical Engineering; Elektro- och systemteknik;

    Abstract : The ever-increasing demand for broadband capacity of the global optical communication networks puts enormous requirements on the semiconductor laser used in the optical transmitter. Industrial standard bodies for optical communication project requirements of single-channel data rates as high as 100 Gbit/s around year 2020. READ MORE