Jds Uniphase Corporation

Lumentum Operations LLC

Niki Liu

Barthelemy Fondeur

Wenlin Jin

Jinxi Shen

David J Chapman

Michael Ayliffe

Zhongjian Wang

Qinrong Yu

Rongtang Fan

A wavelength selective device including an arrayed waveguide grating is disclosed. The wavelength selective device includes a MEMS mirror, which couples light from an input port to an elongate aperture of an input star coupler or slab of the arrayed waveguide grating. A controller tilts the MEMS mirror in response to a sensed temperature change of the arrayed waveguide grating, thereby lessening a sensitivity of the arrayed waveguide grating to the temperature change. The MEMS mirror can also be tilted to shift wavelengths of the wavelength channels of the arrayed waveguide grating by pre-defined amounts upon receiving a corresponding remote command.

Reducing temperature drift of an arrayed waveguide grating

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

Niki Liu