Low-power integrated projection technology can play a key role in development of low-cost mobile devices with built-in high-resolution projectors. Low-cost 3D imaging and holography systems are also among applications such technology. In this paper, an system based on two-dimensional optical phased array fast beam steering capability is reported. Forward biased p-i-n phase modulators 200MHz bandwidth used per each element for rapid control. An optimization algorithm implemented to compensate...

An integrated silicon nanophotonic coherent imager (NCI), with a 4 × array of pixels is reported. In the proposed NCI, on-chip optical processing determines intensity and depth each point on imaged object based instantaneous phase amplitude wave incident pixel. The NCI operates modified time-domain frequency modulated continuous (FMCW) ranging scheme, where concurrent measurements both period zero-crossing time electrical output chip allows to overcome traditional resolution limits domain...

Analog/mixed-signal (AMS) computation can be more energy efficient than digital approaches for deep learning inference, but incurs an accuracy penalty from precision loss. Prior AMS focus on small networks/datasets, which maintain even with 2b precision. We analyze applicability of to larger networks by proposing a generic error model, implementing it in existing training framework, and investigating its effect ImageNet classification ResNet-50. demonstrate significant recovery exposing the...

Millimeter-sized and low-cost sensor nodes can enable future applications of the Internet Things (IoT), for which number sensors is projected to grow a trillion within next decades. RF far-field power transfer potential technique wirelessly powering these since it offers flexible configuration networks, beamforming capability large range compared near-field approaches. However, system design needs be completely rethought this new paradigm IoT sensors. This paper, therefore, presents...

We propose the use of airborne ultrasound for wireless power transfer to mm-sized nodes, with intended application in next generation Internet Things (IoT). show through simulation that ultrasonic can deliver 50 [Formula: see text] a node 0.88 m away from ~ 50-kHz, 25-cm2 transmitter array, peak pressure remaining below recommended limits air, and load increasing area. report recovery measurements precharged capacitive micromachined transducer, demonstrating 5 at simulated distance 1.05 m....

We present an ultralow-power millimeter-sized ultrasonic wake-up receiver (WuRx) that uses precharged transducers to wirelessly receive signatures. Our WuRx takes advantage of the low carrier frequency afforded by speed sound achieve high impedance, and thus sensitivity, operation in a form factor. discuss system-level considerations arise from use ultrasound as mode signature transmission, including choice operating effect transducer miniaturization on sensitivity. describe design...

For over 30 years, protocols based on the mass spectrometry (MS) of permethylated derivatives, complemented by enzymatic degradations, have underpinned glycomic experiments aimed at defining structures individual glycans present in complex mixtures that are characteristic biological samples. Both MS instrumentation and sample handling improved markedly recent enabling greater sensitivity better signal-to-noise ratios, thereby facilitating detection much higher masses than could be achieved...

This paper presents electrical beam steering in an integrated 4×4 2D optical phased array (OPA) on a silicon insulator (SOI) process enabling fast and repeatable for next generation projection, tracking, imaging.

The next generation of the Internet Things is envisioned to include unobtrusive, distributed mm-sized nodes capable sensing and communicating information about their surroundings. Wake-up receivers (WuRXs) - ultra-low-power that monitor environment for a wake-up signature are an important part this vision, as they can extend lifetime wireless node by keeping it asleep until interrogated. state art in WuRXs, measured terms sensitivity power, has recently been advanced streamlining signal path...

The first integrated wideband laser phase noise reduction scheme is presented where the detected using a photonic chip, processed an electronic and subtracted from in feed-forward manner. proof-of-concept experiments on commercially available 1553nm distributed feedback show linewidth 6MHz to 250kHz equivalent 14dB improvement. hybrid integration of chips enables dramatic power consumption area compared bench-top designs. This performs independent light source and, as such, it compatible...

We propose the use of a combination ultrasonic and magnetic fields in conductive media for creation RF electrical current via Lorentz force, order to achieve generation with extreme sub-wavelength resolution at large depth. demonstrate modeling, generation, measurement solution, show that this can be localized distance 13 $cm$ from source region about three orders magnitude smaller than corresponding wavelength electromagnetic waves same operation frequency. Our results exhibit greater...

We introduce CRADLE, or combined RF/acoustic detection and localization, for the remote parametric ranging of passive tags. In this approach, a tag consists an RF antenna connected to ultrasonic transducer via electrical network. A reader looks tags by transmitting both continuous-wave pulsed ultrasound into region interest; when is within that region, incident on varies capacitance, creating time-varying load thus parametrically modulating waves reradiated from tag. The localizes...

A 2-λ, 20 Gb/s microring-based clock-forwarded DWDM optical link is demonstrated. Clock forwarding enables jitter tracking between the data and clock channel resulting in superior BER performance compared to a conventional that uses recovery.

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