US Patent 7102174 Light emitting device and light emitting device module
Patent 7102174 was granted and assigned to Mitsubishi Chemical Corporation on September, 2006 by the United States Patent and Trademark Office.
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The present invention discloses a light emitting device comprising a substrate transparent at the emission wavelength and an active layer structure formed on such substrate, in which the thickness of the substrate is 75 μm or less, and/or a layer for suppressing spectral-intensity-modulation due to the substrate-mode is provided between the substrate and the active layer structure. Such device can suppress the spectral-intensity modulation due to the substrate-mode, which is observed for the case the substrate is transparent at the emission wavelength, to thereby provide a light emission device excellent in linearity of the current-light output characteristics, and to thereby improve the coupling characteristics with an external cavity.
US Patent 07102174 Light emitting device and light emitting device module US Patent 7102174 Light emitting device and light emitting device module
US Patent 07102174 Light emitting device and light emitting device module
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