Coherent Optics for Artificial Intelligence.pdf

1、Chip-scale laser combsfor connectivity of AI Maxim Karpov,Co-CEOWhat are comb lasers?=+Optical sources with a series of discrete,equally spaced optical frequencies2SpectroscopyMetrologyLow-noise RF generationFundamental scienceChip-scale comb lasers Low SWaP Mass manufacturability Compatibility with

2、 standardsOptical interconnectsLiDAR5G/6GOptical computing3Optical interconnects Comb lasersComb lasers Higher modulation speed Modulation formats World exchanges 300 exabytes every month Cloud computing and LLM training requires fabric bandwidth scaling up to 10 x/yearHPC clustersEOS Supercomputer

3、20 Pb/s200,000 LasersData CentersHyperscale Data Center10 Pb/s100,000 Lasers100,000 LasersGoogleGoogleNVIDIANVIDIAHow to address?415 full-time employees(8 PhDs)Scalable and low-power optical interconnects for extreme-bandwidth communicationsEstablished 2022State-of-the art photonics and partnerships

4、Supported and backed by5Laser comb technologysingle-frequency lasermicroresonatorLaser frequencyLaser comb (microcomb)Laser comb (microcomb)Laser frequency6Enlightras combs are based on the light conversion in a laser-driven nonlinear optical microresonatorsLaser comb technology 10 1000 GHz line spa

5、cings High coherence of comb lines Works in multiple optical bands Extremely broadband(no gain limitation)WaferWafer-scale manufacturabilityscale manufacturabilityLaser comb (microcomb)Laser comb (microcomb)Laser frequencyEnlightras combs are based on the light conversion in a laser-driven nonlinear

6、 optical microresonators7Tabletop Comb Laser Shipped since the beginning of 2023 Tabletop turnkey device 100 400 GHz spacing 2000h non-stop operation(at customer site)1 100 00 GHzGHzPower(10dB/div)Power(10dB/div)8Comb Laser Engine1 mm Butterfly form-factor 100