Lumentum Operations LLC

Huawei Technologies Co., Limited

Jds Uniphase Corporation

Zhongjian Wang

Qian Wang

Qingjiu Lin

Zhihua Mai

Michael Ayliffe

Lifeng Fu

Qinrong Yu

Jiwei Li

Niki Liu

Rongtang Fan

An electronic device that includes a fingerprint recognition circuit and the fingerprint recognition circuit, where the fingerprint recognition circuit includes a protective cover, a fingerprint recognition sensor, a circuit connector, a wall plate, and a lower cover, where the protective cover is located on a top side of the wall plate, the wall plate encircles the fingerprint recognition sensor, the protective cover fully covers an upper opening of the wall plate, electronic waterproof adhesive is provided in a seam between the wall plate and the protective cover, the lower cover is located on a bottom side of the wall plate, the lower cover bonds with a lower part of the wall plate, and the circuit connector is electrically coupled to the fingerprint recognition sensor.

Waterproof fingerprint recognition module and electronic device

A package for an arcuate planar lightwave circuit (PLC) chip includes a heater plate coupled to a base by a thick and soft support layer. The arcuate PLC is attached to the heater plate by soft adhesive. A hard adhesive is applied to a multi-waveguide end of the arcuate PLC, to additionally strengthen the attachment of the arcuate PLC to the heater plate. The structure allows the mechanical stress due to fiber pull/shock/vibration to be dissipated in the support layer without introducing large wavelength shifts in the arcuate PLC. The support layer also serves as a heat insulator, facilitating uniform heating of the arcuate PLC.

Packaging an arcuate planar lightwave circuit

The invention relates to an electro-static variable optical attenuator suitable for use in a small form factor pluggable module. A short cladding suppressing fiber, such as a double clad optical fiber, dissipates attenuated light coupled to the cladding to reduce modal interference in the output light, while also reducing PDL and WDL introduced by the off set attenuation mechanism.

Small form factor variable optical attenuator with cladding mode suppressing fiber

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Shenzhen, China

Zhongjian Wang