Low-Noise and High-Power GaAlAs Laser Diodes with a New Real Refractive Index Guided Structure

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概要

• 論文の詳細を見る

• We demonstrate for the first time a real refractive index guided GaAlAs laser structure that has both very low-noise characteristics at a low output power (reading mode) and a stable fundamental transverse mode up to a high power level (writing mode) sufficient for optical read-write systems. The low-noise characteristics are realized by self-sustained pulsation which is induced by large saturable absorbers outside a stripe, and the high power is achieved by using a thin active layer which confines the optical flux very loosely. In order to optimize the device parameters, numerical simulation of the structure is proposed with consideration of interaction between optical field and carrier diffusion under gain nonlinearity and carrier diffusion taken into account. The calculated results are verified experimentally. The lasers showed relative intensity noise level less than -135 dB/Hz under 0-20% optical feedback and output power higher than 60 mW.

• 社団法人応用物理学会の論文
• 1995-07-15

著者

• Itoh Kikuo

  Faculty Of General Education Kumamoto University

• Itoh Kimitaka

  Plasma Physics Laboratory Kyoto University

• Takayama Tomoo

  Department Of Metallurgy Kyoto University

• Itoh K

  Discrete Device Division Semiconductor Co. Matsushita Electric Industrial Co. Ltd.

• IMAFUJI Osamu

  Electronics Research Laboratory, Matsushita Electronics Corporation

• TAKAYAMA Toru

  Electronics Research Laboratory, Matsushita Electronics Corporation

• YURI Masaaki

  Electronics Research Laboratory, Matsushita Electronics Corporation

• ITOH Kunio

  Electronics Research Laboratory, Matsushita Electronics Corporation

• Yuri M

  Semiconductor Devices Research Center Semiconductor Co. Matsushita Electric Industrial Co. Ltd.

• Imafuji O

  Semiconductor Co. Kyoto Jpn

• Takayama Toru

  Solid State Electronics Laboratory Sis-x329 Stnford University:semiconductor Devicr Research Center

• Kume Masahiro

  Electronics Research Laboratory Matsushita Electronics Corporation

• SUGIURA Hideyuki

  Electronics Research Laboratory, Matsushita Electronics Corporation

• NAITO Hiroki

  Electronics Research Laboratory, Matsushita Electronics Corporation

• Naito Hiroki

  Electronics Research Laboratory Matsushita Electronics Corporation

• Sugiura Hideyuki

  Electronics Research Laboratory Matsushita Electronics Corporation

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