SILENTSYS
SILENTSYS is a French deep-tech company that develops and commercializes ultralow noise photonic, electronic, and microwave/THz systems for research institutions, system integrators, and industrial customers in quantum technologies, metrology, optical sensing, and LiDAR/radar applications. Founded in 2021.
- Company typePrivate
- Founded2021
- HeadquartersLe Mans, France
- Headcount1–10
- GTM typeB2B
- OfferingHardware or Manufacturing
What SILENTSYS does
SILENTSYS is a privately-held French deep-tech company (SAS, SIRET 89362851100022) founded in February 2021 and headquartered at 10 rue Xavier Bichat, 72000 Le Mans, France. It designs, develops, and commercializes ultralow noise systems that span photonics, electronics, and microwave/THz domains, serving research institutions, industrial partners, and system integrators worldwide. The company was co-founded by Dr. Pierre Brochard (President, a photonics scientist) and Ing. Romain Frénéhard (CEO, a low-noise electronics engineer), and emerged from several years of advanced research in time-frequency science and photonics initiated in Switzerland. Ing. Pierre Heslon joined as Deputy CEO in 2023 to support commercial scaling.
The core technology stack is built on fiber-based interferometers (modified Michelson or Mach-Zehnder), proprietary SAPO (Self-Adaptive Photonic Oscillator) Brillouin laser technology licensed from Institut FOTON at Université de Rennes, microkelvin-level passive thermal stabilization, and specialized vibration/acoustic isolation expertise developed in collaboration with the University of Le Mans, ENSIM, and LAUM. The commercial portfolio comprises seven core instruments: the SLIM LINER narrow-linewidth Brillouin laser (frequency noise <0.0005 Hz²/Hz), the OFD optical frequency discriminator (<0.01 Hz²/Hz noise floor, 400–2200 nm), the OFC optical frequency correlator for tunable GHz/THz signal generation, the ULN-PDB balanced photodetector, and the PID-01 high-speed servo controller, FIL-01 ultralow noise voltage amplifier, and ALM-X ultralow noise power supplies. Products are positioned as compact, turnkey, OEM-ready units targeted at four primary vertical use cases: quantum technologies, time and frequency metrology, optical sensing, and LiDAR/radar, with secondary exposure to high-performance communications.
SILENTSYS runs a direct, sales-led go-to-market: products are sold worldwide as one-time perpetual purchases to enterprise and institutional buyers, with prices ranging from €790 (FIL-01) to €49,900 (SLIM LINER), supplemented by custom design/manufacturing services and studies & analysis engagements billed at daily rate or fixed price. Technical marketing is the primary demand-generation channel, supported by downloadable datasheets, user guides, white papers, and an active LinkedIn presence. The company is not venture-backed; instead, it funds R&D through non-dilutive programmes from ESA, bpiFrance, ANR (France 2030 – ATOMQTRL, ref. ANR-23-ATOM-0001), the Pays de la Loire region (France 2030 – QoQeliQo), and the European Union (AQLAS).
SILENTSYS firmographics
Firmographics- Name
- SILENTSYS
- Legal name
- SILENTSYS SAS
- Website
- https://silentsys.com
- Company type
- Private
- Founded year
- 2021
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- SILENTSYS is a French deep-tech company that develops and commercializes ultralow noise photonic, electronic, and microwave/THz systems for research institutions, system integrators, and industrial customers in quantum technologies, metrology, optical sensing, and LiDAR/radar applications. Founded in 2021.
- Ownership category
- akta.pro rank
SILENTSYS industry classification
Industry- Product category
- Ultralow Noise Photonic & Electronic Instrumentation
- NAICS
- Communications Equipment Manufacturing (3342)
- SIC
- Instruments For Meas & Testing Of Electricity & Elec Signals (3825)
- akta.pro primary industry
- Microwave/RF Signal Generation, Up/Downconversion & LO Chains (HDAGABAG)
- akta.pro secondary industries
- Readout Electronics (Amplifiers, Digitizers, Parametric Amplifiers) (HDAGABAH), Calibration, Characterization & Test Instrumentation (Cryo/RF) (HDAGABAM)
Keywords
Where SILENTSYS is headquartered
LocationHeadquarters
- HQ city
- Le Mans
- HQ country
- France
- HQ region
- Europe
Offices2 records
Markets served
SILENTSYS business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Technology or R&D, Personnel, Operations, Supply Chain, Marketing or Sales, Infrastructure
Revenue model
- Photonics Products: Sale of ultralow noise laser sources, optical frequency discriminators, balanced photodetectors, and related photonics products. Products are turnkey, compact, and designed for both laboratory and industrial applications.
- Electronics Products: Sale of electronic modules including power supplies (ALM-X series), servo controllers (PID-01), and voltage amplifiers (FIL-01) designed for low-noise signal generation and acquisition.
- GHz/THz Signal Generation Systems: Sale of systems like the Optical Frequency Correlator (OFC) that enable low-noise THz or GHz signal generation by beating two wavelength-distant laser sources.
- Custom Design and Manufacturing Services: SILENTSYS can design and manufacture products based on customer specifications, transforming ideas or prototypes into industrial-grade, market-ready products. Follows a classical and optimized development process.
- Studies and Analysis Services: Expertise-based consulting services covering phase/frequency/intensity noise characterization, frequency stability analysis, oscillator linewidth evaluation, and high-resolution voltage, current, resistor, and temperature measurements. Offered at daily rate or fixed price per service.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| One time/ perpetual license | Pay-as-you-go | ALM-01: 3-output ultralow noise power supply (5V, 12V, 15V DC) |
| One time/ perpetual license | Pay-as-you-go | ALM-05: Single-output 5VDC power supply up to 3A |
| One time/ perpetual license | Pay-as-you-go | ULN-PDB: Ultralow Noise Balanced Photodetector |
| One time/ perpetual license | Pay-as-you-go | FIL-01: Ultralow Noise Voltage Amplifier |
| One time/ perpetual license | Pay-as-you-go | PID-01: High-Speed Servo Controller |
| One time/ perpetual license | Pay-as-you-go | OFD: Optical Frequency Discriminator |
| One time/ perpetual license | Pay-as-you-go | OFC: Optical Frequency Correlator |
| One time/ perpetual license | Pay-as-you-go | SLIM LINER: Lowest Phase Noise Brillouin Laser |
| Other | Pay-as-you-go | Studies & Analysis Services |
Go-to-market motion2 records
Distribution channels2 records
Marketing channels5 records
SILENTSYS product offering
Product offeringCore offering
SILENTSYS develops and manufactures ultralow noise systems for the photonic, microwave, and electronic industries. Its product range covers low-phase-noise Brillouin lasers, optical frequency discriminators and correlators, balanced photodetectors, high-speed servo controllers, voltage amplifiers, and ultralow noise power supplies, sold as turnkey, plug-and-play units to research institutions and industrial partners in quantum technologies, metrology, sensing, and communications. The company complements its hardware with custom design/manufacturing and technical studies/analysis services.
Product overview
SILENTSYS develops and commercializes ultralow noise systems in photonics, electronics, and microwave/THz domains. The product portfolio centers on precision laser sources and optical instruments (SLIM LINER Brillouin laser, OFD/OFC optical frequency discriminators/correlators, ULN-PDB balanced photodetector) complemented by electronic modules (PID-01 servo controller, FIL-01 voltage amplifier, ALM-X power supplies). These products form an integrated ecosystem for laser frequency stabilization, noise characterization, and high-precision measurement applications in quantum technologies, metrology, sensing, and communications. The company also offers custom design services and technical consulting.
Differentiator
Problem solved
Functional benefit
Products and services
- ALM-X Ultralow Noise Power Supplies Series of ultralow noise power supply modules (ALM-01 three-output 5/12/15 VDC up to 25W; ALM-05 single 5 VDC up to 3A; ALM-08 2 VDC at 8A + 5 VDC at 1A) with residual ripple below 5–50 µVrms and short-circuit protection, for powering low-noise photonic and electronic systems.
- FIL-01 Ultralow Noise Voltage Amplifier High-pass filter and amplifier module with 600 mHz AC-coupling cutoff, 66 dB (2000x) gain, 3 MHz bandwidth, and 0.6 nV/√Hz input voltage noise, designed for ultralow voltage noise characterization in low-noise electronic setups.
- PID-01 High-Speed Servo Controller Touchscreen-controlled servo controller with proportional, simple integrator, and double integrator functions, >200 dB open-loop gain, >30 MHz control bandwidth, 5 nV/√Hz input noise, ±5 V input range, and ±4.5 V output range, for locking lasers and other low-noise systems.
- ULN-PDB Ultralow Noise Balanced Photodetector Plug-and-play InGaAs balanced photodetector with 100 MHz bandwidth, 39 kV/A transimpedance gain, 3 pW/√Hz noise-equivalent power, 91% quantum efficiency at 1560 nm, 800–1700 nm spectral range, and 50 dB CMRR, for low-noise optical detection in laser stabilization and quantum systems.
- OFD Optical Frequency Discriminator Turnkey fiber-based optical frequency discriminator that delivers a voltage proportional to laser frequency fluctuations, with 400–2200 nm wavelength coverage, 4 MHz to 2 GHz free spectral range, frequency noise floor below 0.01 Hz²/Hz, and Hz-level achievable laser linewidth, for laser noise characterization and stabilization.
- OFC Optical Frequency Correlator Dual-input optical frequency discriminator system for stabilizing two wavelength-distant lasers on the same optical reference, enabling tunable GHz/THz signal generation with very low frequency noise and high frequency stability, for RF photonics, metrology, and LiDAR/radar applications.
- SLIM LINER Lowest Phase Noise Brillouin Laser Single-frequency, ultra-narrow linewidth continuous-wave laser based on Self-Adaptive Photonic Oscillator (SAPO) technology, with frequency noise below 0.0005 Hz²/Hz, tunable 1529–1562 nm wavelength, ~10 mW output power, and RIN below −150 dBc/Hz at 1 MHz, for quantum, metrology, sensing, and LiDAR applications.
- Custom Design & Manufacturing Services Custom engineering service in which SILENTSYS designs and manufactures products based on customer specifications, transforming ideas or prototypes into industrial-grade, market-ready photonic, electronic, or GHz/THz systems following a classical and optimized development process.
- Studies & Analysis Services Expert consulting services covering phase, frequency, and intensity noise characterization, frequency stability analysis, oscillator linewidth evaluation, laser environment sensitivity, and high-resolution voltage, current, resistor, and temperature measurements, offered on a daily-rate or fixed-price basis.
Quantifiable outcome
- Frequency noise reduced by more than 60 dB to reach Hz-level laser linewidth from MHz-level sources
- +6 more outcomes
Companies that use SILENTSYS
Customer profileSegments5 records
Ideal customer profiles4 records
SILENTSYS technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature6 records
SILENTSYS partnerships and signals
Strategic signalPartnerships
Four partnerships are on record, tiered core, supporting and minor.
- Institut FOTON (Université de Rennes)coreInstitut FOTON at Université de Rennes developed the Self-Adaptive Photonic Oscillator (SAPO) technology used in SILENTSYS SLIM LINER product. SILENTSYS commercializes products based on this technology, which is fundamental to their flagship Brillouin laser offering.
- University of Le Mans, ENSIM and LAUMsupportingCollaboration with University of Le Mans, ENSIM and LAUM on vibration and acoustic isolation expertise. This academic partnership has contributed to SILENTSYS specialized capabilities in minimizing vibrations and acoustic disturbances for embedded systems in challenging environments.
- OVHminorOVH hosts the silentsys.com website at their headquarters in Roubaix, France (2 Rue Kellermann, 59100 Roubaix).
- FD communicationminorFD communication agency provides website maintenance services for silentsys.com.
Scale indicators11 records
Recent moves6 records
Expansion highlights6 records
SILENTSYS competitors and assessment
Company assessmentDirect peers
- Toptica Photonics: Toptica manufactures diode and fiber lasers, including ultra-narrow linewidth and frequency-stabilized lasers for quantum optics, metrology, and cold-atom applications — directly competing with SILENTSYS' SLIM LINER and OFD products in the same research-customer base.
- Vescent Photonics: Vescent supplies narrow-linewidth lasers, servo controllers, and electro-optic modules for cold-atom and quantum technology customers — a close direct peer on the locking-electronics and frequency-stabilization stack that SILENTSYS sells.
- Stable Laser Systems: Stable Laser Systems specializes in ultra-stable cavity-stabilized lasers for optical clocks and precision spectroscopy — a direct peer to SILENTSYS' SLIM LINER in the ultralow-linewidth commercial segment.
- OEwaves: OEwaves develops ultra-low-noise optoelectronic oscillators and photonic microwave sources, overlapping directly with SILENTSYS' GHz/THz signal-generation OFC platform and its precision oscillator/photodetector portfolio.
- Menlo Systems: Menlo Systems offers optical frequency combs, ultralow-noise laser locking electronics, and terahertz systems — overlapping directly with SILENTSYS' OFD/OFC frequency discriminators and its GHz/THz signal-generation value proposition.
Emerging players
- ID Quantique: ID Quantique provides quantum-safe communication and quantum sensing products using single-photon detectors and entangled-photon sources — an emerging player that shares the quantum-photonics customer base with SILENTSYS, with partial rather than full product overlap.
Broad incumbents
- Thorlabs: Thorlabs is a broad photonics and electronics catalog vendor offering photodetectors, amplifiers, servo controllers, and laser systems — competing with SILENTSYS' electronics modules (PID-01, FIL-01, ALM-X, ULN-PDB) from a wider, lower-priced catalog position.
- iXblue (now Exail): Exail (formerly iXblue) supplies fiber-optic gyroscopes, atomic clocks, and quantum sensing instruments — a broader incumbent that competes with SILENTSYS in inertial navigation, time-frequency metrology, and ruggedized photonic subsystems.
- M Squared Lasers: M Squared builds laser systems and photonic platforms for quantum, biophotonics, and industrial applications — a broader incumbent that overlaps with SILENTSYS in quantum-technology laser sources and metrology instrumentation.
- NKT Photonics: NKT Photonics manufactures fiber lasers, supercontinuum sources, and photonic crystal fibers serving quantum, metrology, and sensing customers — a broader incumbent with adjacent technology to SILENTSYS' fiber-based photonic schemes and Brillouin laser.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks6 records
Key highlights6 records
Customer concentration
SILENTSYS social profiles
Digital presenceSILENTSYS financial estimates
Financial estimateRevenue estimate
Valuation estimate
SILENTSYS leadership team
Management profileNumber of profiles
Profiles3 records
SILENTSYS funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
SILENTSYS M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about SILENTSYS
What does SILENTSYS do?
SILENTSYS develops and manufactures ultralow noise systems for the photonic, microwave, and electronic industries. Its product range covers low-phase-noise Brillouin lasers, optical frequency discriminators and correlators, balanced photodetectors, high-speed servo controllers, voltage amplifiers, and ultralow noise power supplies, sold as turnkey, plug-and-play units to research institutions and industrial partners in quantum technologies, metrology, sensing, and communications. The company complements its hardware with custom design/manufacturing and technical studies/analysis services.
Is SILENTSYS a public or private company?
SILENTSYS is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was SILENTSYS founded?
SILENTSYS was founded in 2021. It employs 1 to 10 people.
Where is SILENTSYS based?
SILENTSYS is headquartered in Le Mans, France, in the Europe region.
How does SILENTSYS make money?
Five revenue lines are on record. Photonics Products are the primary driver. The others are electronics Products, GHz/THz Signal Generation Systems, custom Design and Manufacturing Services and studies and Analysis Services.
Who are SILENTSYS's main competitors?
Direct peers on record are Toptica Photonics, Vescent Photonics, Stable Laser Systems, OEwaves and Menlo Systems. ID Quantique is listed as an emerging player. Broad incumbents are Thorlabs, iXblue (now Exail), M Squared Lasers and NKT Photonics.
Does SILENTSYS have an API?
No public API is recorded for SILENTSYS.
What industry is SILENTSYS in?
SILENTSYS's product category is Ultralow Noise Photonic & Electronic Instrumentation. Its primary akta.pro industry code is HDAGABAG, Microwave/RF Signal Generation, Up/Downconversion & LO Chains, with a secondary code of HDAGABAH, Readout Electronics (Amplifiers, Digitizers, Parametric Amplifiers). Its NAICS code is 3342 and its SIC code is 3825.