PHOTONICS / RF / THz / TEST & MEASUREMENT

Photonic instruments for
advanced RF electronics.

Broadband signal analysis for next-generation hardware — without rebuilding the measurement chain band by band.

50–500 GHzmeasured in a single scan
1 architectureacross multiple RF bands
2 patent applicationsfiled
BROADBAND SIGNAL ANALYSIS50 → 500 GHz
V W D G J Y 50 150 250 350 500 GHz
Continuous scan demo across V, W, D, G, J and Y bands.

THE PROBLEM

High-frequency testing fragments
as frequency increases.

Conventional measurement stacks depend on band-specific frontends, extenders and calibration paths. Every additional band means more hardware, more setup time and more cost.

V50–75GHz
W75–110GHz
D110–170GHz
G140–220GHz
J220–330GHz
Y325–500GHz
6 bandsmultiple frontends & repeated calibration

THE LEMETRA APPROACH

Convert RF directly into
the optical domain.

Lemetra uses antenna-coupled electro-optic transduction in thin-film lithium niobate to move high-frequency information onto light, where broadband analysis becomes simpler.

INPUTRF signalsource · oscillator · transmitter
LEMETRAPhotonic receiverRF → optical conversion
INSIGHTSpectrum & phase noiseoptical readout · DSP
01

Broadband by physics

The same photonic architecture can operate across widely separated RF bands without a carrier-frequency electronic mixer.

02

Integrated detector head

The incoming field is captured on-chip and encoded onto an optical carrier using thin-film lithium niobate photonics.

03

Standard optical readout

Telecom lasers, photodetectors and digital signal processing replace much of the specialized band-by-band RF chain.

MEASURED PROOF

Built on experimental results —
not a concept slide.

Representative measurements from the current research platform demonstrate broadband spectrum analysis and phase-noise readout.

MEASURED SPECTRUM50–500 GHz
Measured broadband spectrum from 50 to 500 GHz

Measured broadband spectrum built directly from the uploaded processed data file.

PHASE NOISE270.594 GHz
Measured phase noise plot

Measured phase-noise trace built directly from the uploaded data file.

APPLICATIONS

For teams building hardware beyond
conventional RF test limits.

01

Communications & 6G

High-frequency links, transceivers and backhaul.

signal quality · source characterization
02

RF components & semiconductors

VCOs, multipliers, PAs, MMICs and RFICs.

frequency · spectrum · phase noise
03

Radar & sensing

FMCW radar, imaging and high-resolution sensing.

chirps · spectral purity · stability
04

Advanced research

Quantum hardware, fusion diagnostics and THz science.

flexible broadband measurement

WHY WE CAN BUILD THIS

Deep technical experience in the exact
problem Lemetra is solving.

Lemetra is being built from years of research in integrated photonics and high-frequency electro-optic measurement at EPFL.

4+ yearsdirect R&D experience in photonic RF/THz signal analysis
EPFLtechnology developed and experimentally validated
2patent applications filed
Peer-reviewedexperimental results

LEMETRA INSTRUMENTS

Building the first
evaluation instrument.

We are speaking with industry partners and investors interested in high-frequency test & measurement.

aleksei.gaier@epfl.ch