MARCH mmw-sprawl photonic integrated circuits for microwave photonics Martijn Heck
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1 MARCH mmw-sprawl photonic integrated circuits for microwave photonics Martijn Heck 1
2 2
3 playing field PIC technology The case for photonic integration Pros Cons system performance: speed, sensitivity and stability low cost for high volume decreased size, weight and power consumption (SWaP) component performance inherent performance tradeoff exponential bandwidth growth telecommunications exascale datacenters connectivity everywhere 4G/5G wireless accurate metrology, sensing, radar, lidar,... competing technologies discrete optics electronics MEMS,... 3
4 playing field PIC technology There is a clear case for telecom and datacom Pros Cons increased performance: speed, sensitivity and stability inherent performance tradeofffeasibility: low cost for high volume good enough high development cost increased functionality technical decreased size, weight and no standardization power consumption (SWaP) exponential bandwidth growth telecommunications exascale datacenters connectivity everywhere 4G/5G wireless internet-of-things ubiquitous sensors, networks competing technologies energy efficiency discrete optics reduced cost electronics MEMS,... 4
5 playing field PIC technology But for most other applications it s a struggle Pros increased performance: speed, sensitivity and stability increased functionality low cost for high volume decreased size, weight and power consumption (SWaP) exponential bandwidth growth telecommunications exascale datacenters connectivity everywhere 4G/5G wireless internet-of-things ubiquitous sensors, networks Cons inherent performance tradeoff high development cost no standardization performance too low competing technologies are (still) better competing technologies discrete optics electronics MEMS,... 5
6 chipscale Some state of the art microwave technology microwave filters 10-GHz oscillators analog-to-digital converters MLLDs µoeo DRO lab/rack k 1M 100M 10G 6
7 Ultra low loss waveguide technology required resonator Q values > 100M oscillator timing jitter << 10 fs (10 khz 10 MHz) waveguide losses < 0.1 db/m MLLDs µoeo DRO lab/rack k 1M 100M 10G 7
8 Ultra-low loss waveguides based on silicon nitride World record low loss: (0.045 ± 0.05) db/m Bauters et al., OSA Opt. Exp., 19 (2011). 8
9 playing field PIC technology Ultra-low loss waveguides required for high-end (microwave photonic) applications Pros Cons increased performance: 1. ultra-low loss waveguide speed, sensitivity and stability (ULLW) technology; inherent performance tradeoff increased functionality low cost for high volume high development cost decreased size, weight 2. and integration ULLW no standardization with power consumption (SWaP) III/V or silicon photonics exponential bandwidth growth telecommunications competing technologies exascale datacenters 3. opportunities for highperformance applications electronics discrete optics connectivity everywhere 4G/5G wireless MEMS,... internet-of-things ubiquitous sensors, networks 9
10 Millimeter-wave silicon photonics for future energyefficient 5G networks We use silicon photonics for 60 GHz 90 GHz generation and modulation to address the increasing bandwidth demand for wireless communications. We will use this technology to realize energyefficient wireless transceivers. 10
11 mmw-sprawl concept GHz 100 Gbps MOD filter (QAM) DFB laser Silicon photonic chip RF low-frequency RF oscillator < 20 GHz bandwidth silicon modulator 11
12 Energy efficiency analysis: trade-off photonic and electronic power consumption higher drive voltage wider comb higher drive frequency higher RF loss higher drive frequency lower oscillator efficiency Power efficiency Literature data RC fitted model Literature data Fitted model MOD 12
13 A comprehensive simulation tool for overall system efficiency Frequency quadrupling optimum for 30 GHz generation Mohammadhosseini and Heck, to be published 13
14 playing field PIC technology mmw-sprawl will optimize the energy efficiency of FiWi 5G systems Pros Cons increased performance: speed, sensitivity and stability inherent performance tradeofffeasibility: low cost for high volume good enough high development cost increased functionality technical decreased size, weight and no standardization power consumption (SWaP) exponential bandwidth growth telecommunications exascale datacenters connectivity everywhere 4G/5G wireless internet-of-things ubiquitous sensors, networks competing technologies energy efficiency discrete optics reduced cost electronics (?) MEMS,... 14
15 dr. Martijn J.R. Heck Associate Professor Department of Engineering Aarhus University Our research is supported by: 15
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