K
Kenichi Iga
Researcher at Tokyo Institute of Technology
Publications - 593
Citations - 12004
Kenichi Iga is an academic researcher from Tokyo Institute of Technology. The author has contributed to research in topics: Laser & Semiconductor laser theory. The author has an hindex of 47, co-authored 592 publications receiving 11661 citations. Previous affiliations of Kenichi Iga include University of Santiago de Compostela.
Papers
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Surface emitting semiconductor lasers
TL;DR: In this paper, a vertical-cavity surface emitting semiconductor laser was proposed to reduce the threshold current of the laser reflector and introduced a circular buried heterostructure, which is 7 mu m long and 6 mu m in diameter.
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Surface-emitting laser-its birth and generation of new optoelectronics field
TL;DR: In this article, the progress of the surface emitting laser and the vertical-cavity surface-emitting laser (VCSEL), covering the spectral band from infrared to ultraviolet by featuring its physics, materials, fabrication technology, and performances, such as threshold, output powers, polarizations, linewidth, modulation, reliability, and so on.
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GaInAsP/InP surface emitting injection lasers.
Journal ArticleDOI
Frequency chirping in external modulators
Fumio Koyama,Kenichi Iga +1 more
TL;DR: In this paper, a general formula is given that expresses frequency chirping in some types of external intensity modulators, such as the loss modulator, directional-coupler-type modulator and total-internal-reflection type modulator.