Nokia Solutions and Networks Oy

Elenion Technologies, LLC

The Royal Institution for the Advancement of Learning / Mcgill University

Valorbec L.p.

Christopher Williams

Alexander V Rylyakov

Yang Liu

Ran Ding

Richard C Younce

Abdelrahman Ahmed

Mostafa Ahmed

Odile Liboiron-Ladouceur

Monireh Moayedi Pour Fard

Glenn Cowan

A multi-section optical modulator and related method are disclosed wherein two waveguide arms traverse a plurality of successive modulating sections. A differential drive signal is applied separately to each waveguide arm of each modulating sections in synchronism with the transmission of light along the waveguide arms, effecting a dual differential driving of each section. By suitably selecting the number of modulating sections and the section length, a high modulation bandwidth and a high modulation efficiency may be achieved simultaneously for a given peak-to-peak voltage swing of the drive signal.

Optical waveguide modulator

A multi-section optical modulator and related method are disclosed wherein two waveguide arms traverse a plurality of successive modulating sections. A differential drive signal is applied separately to each waveguide arm of each modulating sections in synchronism with the transmission of light along the waveguide arms, affecting a dual differential driving of each section. By suitably selecting the number of modulating sections and the section length, a high modulation bandwidth and a high modulation efficiency may be achieved simultaneously for a given peak-to-peak voltage swing of the drive signal.

There is described a photodetector for detecting incoming infrared light. The photodetector generally has a substrate; an i-type semiconductor region extending along the substrate, the i-type semiconductor region being sandwiched between a p-type semiconductor region and an n-type semiconductor region; a grating coupler being optically connected to one of two ends of the i-type semiconductor region, the grating coupler redirecting incoming infrared light into and along the i-type semiconductor region via the one of the two ends of the i-type semiconductor region for propagation of infrared light along the i-type semiconductor region; and a photocurrent detection circuit electrically connected to the p-type semiconductor region and to the n-type semiconductor region for detecting a photocurrent resulting from said propagation.

Photodetector for detecting incoming infrared light

A multi-section optical modulator and related method wherein two waveguide arms traverse a plurality of successive modulating sections. A differential drive signal is applied separately to each waveguide arm of each modulating sections in synchronism with the transmission of light along the waveguide arms, effecting a dual differential driving of each section. By suitably selecting the number of modulating sections and the section length, a high modulation bandwidth and a high modulation efficiency may be achieved simultaneously for a given peak-to-peak voltage swing of the drive signal.

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Montreal, Canada

Christopher Williams