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Topic

Silicon Photonics

Technology for fabricating optical circuits on silicon chips using CMOS processes, paired with III-V materials for lasers, used in high-speed data links.

Current stories

leadershipConfirmed6 publishers

AMD and Intel invest in Salience Labs' $125m round for optical data-centre switches

Salience Labs, an Oxford chip startup, raised $125m in a Series B led by Bullhound Capital that included AMD Ventures and Intel Capital. City AM reports the switches could reduce power consumption but gives no measured figure.

Perspective Coverage

7 publishers
Builder
Builder 39%
Operator
Operator 21%
Investor
Investor 40%

Reality

Evidence45
Adoption
Not scored
Hype gap+35
Incentives65
Confidence72
productOne report1 publisher

Xanadu is moving its photon detectors onto GlobalFoundries' 300mm line in New York

Xanadu will move its photon-counting detectors and silicon nitride photonics onto GlobalFoundries' 300mm line in Malta, New York, under a multi-year deal. Its scaling case now depends on how chips from a commercial fab perform.

Reality

Evidence30
Adoption20
Hype gap+35
Incentives70
Confidence35
buildOne report1 publisher

Tower's $4 billion optical-chip build-out in Japan starts inside an already-qualified fab

Tower Semiconductor and Japan will co-invest $4 billion to reach 45,000 300mm-equivalent wafers a month of optical-connectivity capacity by 2029. Until the new fab lands in 2029, growth comes from adding tools to a fab that already ships.

Publishers:tomshardware.com

Reality

Evidence40
Adoption50
Hype gap+30
Incentives55
Confidence40
productOne report1 publisher

Photonics aims at 20 of the 400 tonnes of copper inside a 100MW data centre

Operators are betting light replaces copper between the chips inside a data centre. Whether it does turns on hall temperature and cable routing as much as on an optical cost curve that is still expensive.

Publishers:bbc.co.uk

Reality

Evidence46
Adoption
Not scored
Hype gap+20
Incentives80
Confidence50
investOne report1 publisher

Marvell paid $3.25bn for silicon photonics maker Celestial AI to target market KeyBanc sees hitting $20bn by 2030

KeyBanc's optical thesis for Marvell and Marvell's own revenue guidance both land near $30 billion, four years apart and measuring different things. The purchase price for the technology is already committed.

Reality

Evidence32
Adoption45
Hype gap+30
Incentives62
Confidence36
productOne report1 publisher

Kyocera anneals an optical isolator onto a silicon waveguide with a 700-micrometer laser spot

Kyocera and Tohoku University report 13.6 decibels of isolation on a silicon waveguide, roughly a 95 percent cut in reflected light, from garnet crystallised by a laser aimed at one small patch. Lower loss and mass production are still on their list.

Reality

Evidence48
Adoption8
Hype gap+28
Incentives58
Confidence55
scienceOne report1 publisher

Laser pulses retune EPFL's suspended silicon metasurfaces in nanoseconds

In Nature Communications, Hatice Altug's EPFL group tunes one metasurface two ways: on-chip microheaters running at kilohertz rates, and ultrafast laser pulses running about a million times faster, a route that needs an external laser.

Publishers:phys.org

Reality

Evidence55
Adoption
Not scored
Hype gap+25
Incentives70
Confidence55
productOne report1 publisher

Nvidia now carries $99bn of its own customers on its balance sheet

The book grew from about $7bn in a year, and roughly half of it is priced by funding rounds rather than by markets, which means a demand forecast built on customer orders is partly a forecast of Nvidia's own marks.

Publishers:thenextweb.com

Reality

Evidence70
Adoption76
Hype gap+12
Incentives72
Confidence64
productOne report1 publisher

UIUC's quasi-periodic photonic crystal lased single-mode at room temperature at 1.5 microns

The demonstration is photopumped, so nobody is specifying it into a lidar module yet. The buried silicon dioxide pattern it lases through is the part that could let one wafer carry several photonic-crystal designs.

Reality

Evidence55
Adoption
Not scored
Hype gap+20
Incentives58
Confidence52
scienceOne report1 publisher

Deuterated silicon nitride on 8-inch wafers puts a broadband light source inside the fab

A Singapore team swapped hydrogen for deuterium in silicon nitride, cut loss to 0.54 dB per centimeter, and spanned 1.7 octaves. The sub-400 C process is the part fabs will care about.

Publishers:phys.org

Reality

Evidence66
Adoption
Not scored
Hype gap+18
Incentives55
Confidence60
buildOne report1 publisher

The optical interconnect bill: $144B by 2030, and 63.7% of it is silicon photonics

A forecast filed with a Hong Kong IPO puts data center optics at $144.4 billion in 2030, and the $15 billion already spent means rack decisions made now are bets on a moving roadmap.

Publishers:tomshardware.com

Reality

Evidence34
Adoption32
Hype gap+38
Incentives82
Confidence45