Hewlett-packard Development Company, L.P.

Hewlett Packard Enterprise Development LP

Kian Teck Poh

Jing Kai Tan

Chee How Lee

Kum Cheong Adam Chan

Keng Hua Chuang

Kah Hoe Ng

Tzye Perng Poh

An optical waveguide has a window for receiving optical signals re-directed by a beam splitter and a heating element associated with the window.

Window of optical waveguide

An example provides an apparatus including a shielding panel in spaced relation to a substrate such that a heat sink mounted on the substrate protrudes through an opening in the shielding panel. A first airflow path may be provided between the substrate and a first side of the shielding panel, and a second airflow path may be provided on a second side of the shielding panel across a portion of the heat sink protruding through the opening.

Shielding panel having an opening for a heat sink

A system includes an external light supply to a silicon photonic chip. The light supply includes a primary light source, a secondary light source, an optical coupler, an optical splitter, and a dark sensor. The optical coupler is to combine any output from the primary light source and any output from the secondary light source into an input to the silicon photonic chip. The optical splitter is located in an optical path between the primary light source and the optical coupler, and is to divert part of the output from the primary light source. The dark sensor is to receive the diverted part of the output from the primary light source and to selectively activate the secondary light source based on the diverted part of the output from the primary light source.

Redundant light supply for silicon photonic chip

In one implementation a device connector includes a first electronic device magnet, second electronic device magnet, and third electronic device magnet to connect to a power supply. The power supply magnet can be oriented to the opposite pole of one of the electronic device magnets.

Device connector including magnet

A network switching device includes at least two stacking ports, each stacking port being connectable via a stacking cable to a stack including at least one external network switching device. The device further includes an internal communication medium coupled to the stacking ports and capable of transmitting a frequency division multiplexed signal between the stacking ports. The device further includes a network switch and an interface to enable communication between the network switch and the internal communication medium. The interface includes a parallel coupling to the internal communication medium such that a signal with one carrier frequency being communicated between the network switch and the internal communication medium does not interfere with transmission between the two stacking ports of a signal with a different carrier frequency.

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Singapore, Singapore

Kian Teck Poh