Berlin 2008 – wissenschaftliches Programm

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DS: Fachverband Dünne Schichten

DS 7: Semiconductor Nanophotonics: Materials, Models, Devices - Surface Emitters

DS 7.1: Hauptvortrag

Montag, 25. Februar 2008, 11:15–12:00, H 2032

Recent advances of VCSEL photonics — •Fumio Koyama — Tokyo Institute of Technology, Yokohama 226-8503, Japan

A vertical cavity surface emitting laser (VCSEL) was invented 30 years ago. A lot of unique features have been proven, such as low power consumption, wafer-level testing, small packaging capability and so on. The market of VCSELs has been growing up rapidly in recent years and they are now key devices in local area networks using multi-mode optical fibers. Also, long wavelength VCSELs are currently attracting much interest for use in single-mode fiber metropolitan area and wide area network applications. In addition, a VCSEL-based disruptive technology enables various consumer applications such as a laser mouse and laser printers.

In this talk, the recent advance of VCSEL photonics will be reviewed, which include the wavelength engineering and integration of single-mode VCSEL arrays. The athermal operation of micromachined VCSELs is demonstrated. Also, this presentation explores the potential and challenges for new functions of VCSELs, including high-speed nonlinear phase-shifters, slow light modulators/switches and so on.