Method for making optical device with composite passive and tapered active waveguide regions

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United States of America Patent

PATENT NO 5985685
SERIAL NO

09161714

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Abstract

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A semiconductor optical device, for example a laser, has a composite optical waveguide including a tapered, MQW active waveguide in optical contact with a substantially planar, passive waveguide. The fundamental optical mode supported by the composite waveguide varies along the length of the composite waveguide so that, in a laser, the laser mode is enlarged and is a better match to single mode optical fibre. A method for making such semiconductor optical devices is also disclosed.

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Patent Owner(s)

Patent OwnerAddress
IPG PHOTONICS CORPORATION50 OLD WEBSTER ROAD OXFORD MA 01540

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lealman, Ian F Ipswich, GB 7 121
Perrin, Simon D Ipswich, GB 2 54
Robertson, Michael J Ipswich, GB 10 192

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  • 31 Citation Count
  • H01S Class
  • 92.41 % this patent is cited more than
  • 26 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges6135572110412101 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 7081 - 900102030405060708090100110120130140150

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