Optical device, optical coupler and integrated circuit

Details Optical device, optical coupler and integrated circuit Optical device, optical coupler and integrated circuit

2011-06-28

2011-06-28

Peng, Charlie (Department: 2883)

Optical waveguides

With optical coupler

Particular coupling function

C385S132000

Reexamination Certificate

active

07970243

ABSTRACT:
The present invention provides an MMI optical device that can prevent a possible decrease in transmission rate in spite of miniaturization and integration. The optical device includes a rectangular multimode waveguide and an electromagnetic wave absorber of a light source wavelength. The electromagnetic wave absorber is located on at least one side surface of the rectangular multimode waveguide and is located at a predetermined gap from a core of the rectangular multimode waveguide.

REFERENCES:
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patent: 6580850 (2003-06-01), Kazarinov et al.
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patent: 2007/0122081 (2007-05-01), Doerr
patent: 57-157209 (1982-09-01), None
patent: 2001-148536 (2001-05-01), None
Carmen Vazquez et al., “Experimental assessment of access guide first-order mode effect on multimode interference couplers”, Optical Engineering, vol. 40, No. 7, Jul. 2001, pp. 1160-1162, 2001 Society of Photo-Optical Instrumentation Engineers, Spain.

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