| Project/Area Number |
01850080
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| Research Category |
Grant-in-Aid for Developmental Scientific Research (B).
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| Allocation Type | Single-year Grants |
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| Research Field |
電子機器工学
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
ARAI Shigehisa Assoc. Prof. Faculty of Engineering, Tokyo Institute of Technology, 工学部, 助教授 (30151137)
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| Co-Investigator(Kenkyū-buntansha) |
MIYAMOTO Yasuyuki Research Assoc. Faculty of Engineering, Tokyo Institute of Technology, 工学部, 助手 (40209953)
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| Project Period (FY) |
1989 – 1990
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| Project Status |
Completed (Fiscal Year 1990)
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| Budget Amount *help |
¥11,700,000 (Direct Cost: ¥11,700,000)
Fiscal Year 1990: ¥5,300,000 (Direct Cost: ¥5,300,000)
Fiscal Year 1989: ¥6,400,000 (Direct Cost: ¥6,400,000)
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| Keywords | Dynamic single mode Laser / Distributed reflector laser / DR laser / High power / BIG structure / High efficiency / Single facet output / SCH structure |
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| Research Abstract |
The main purpose of this research is to clarify the static and dynamic properties of a novel distributed reflector (DR) dynamic single mode laser.
Specific results obtained in this research are as follows.
The DR laser was theoretically investigated focusing on its high efficiency and high power operation as well as its single mode operation.
1.5 mu m GaInAsP/InP DR laser was realized by using the big structure and OMVPE buried deep corrugation. High front of rear output power ratio, as well as low threshold current operation and large side-mode suppression ratio (SMSR) were obtained by introducing asymmetric grating using shallow grating in active region and deep grating in passive region.
1.5 mu m GaInAsP/InP DR laser with SCH structure was realized using the BIG structure and OMVPE buried asymmetric corrugation. The narrow line width and small chirping characteristics of DR laser were verified experimentally.
DR laser was theoretically investigated focusing on its narrow line width operation as well as high efficiency and high power operation.
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