Dissipating heat from an active region of an optical device

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United States of America Patent

PATENT NO 10809548
APP PUB NO 20170351124A1
SERIAL NO

15685374

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A device, such as an electroabsorption modulator, can modulate a light intensity by controllably absorbing a selectable fraction of the light. The device can include a substrate. A waveguide positioned on the substrate can guide light. An active region positioned on the waveguide can receive guided light from the waveguide, absorb a fraction of the received light, and return a complementary fraction of the received light to the waveguide. Such absorption produces heat, mostly at an input portion of the active region. The input portion of the active region can be thermally coupled to the substrate, which can dissipate heat from the input portion, and can help avoid thermal runaway of the device. The active region can be thermally isolated from the substrate away from the input portion, which can maintain a relatively low thermal mass for the active region, and can increase efficiency when heating the active region.

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Patent Owner(s)

  • JUNIPER NETWORKS, INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Norberg, Erik Santa Barbara, US 27 182
Roth, Jonathan Edgar San Francisco, US 64 429

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