Keopsys

What Keopsys does

Keopsys designs, develops, and manufactures high-performance fiber lasers and fiber amplifiers, operating as a wholly-owned subsidiary of Lumibird Group (formerly Keopsys & Quantel, rebranded 2018). Founded in 1997 by Marc Le Flohic in Lannion, France, the company is built around proprietary double cladding fiber technology pumped by broad stripe diodes, with key optical components developed in-house. Its product portfolio spans four categories: CW Amplifiers (Ytterbium, Erbium, Thulium, Frequency Converted), Pulsed Amplifiers (Erbium), CW Lasers (Ytterbium, Visible, Raman, Erbium, Thulium), and Pulsed Lasers (UV, Green, Ytterbium, Erbium), available as OEM modules or benchtop units.

The company generates revenue through direct B2B sales and a global network of authorized distributors, serving defense, environmental monitoring (LIDAR), scientific research, space, telecommunications, and medical verticals. Notable technical achievements include a world-record 38.4 Tbps optical transmission over 762 km via the CHFA hybrid fiber amplifier (developed for the SASER-Siegfried project with Orange and Ekinops) and MIL-STD-810 vibration-tested Kult platform for defense applications. Production capacity exceeds 2,500 devices annually from a 2,500 m² ISO 9001:2015-certified facility in Lannion, with no public pricing — all transactions are quote-based. The Lumibird parent group reported over €80 million in revenue and 400+ employees post-merger, with additional operations in the US, Japan, and Canada.

Name

Keopsys

Legal name

Lumibird S.A.

Website

https://keopsys.com

Company type

Public

Founded year

1997

Operating status

Operating

Headcount range

101–250 employees

Short description

Keopsys designs and manufactures high-performance fiber lasers and fiber amplifiers for defense, LIDAR, scientific research, space, telecom, and medical customers, operating as the Lannion-based subsidiary of Lumibird Group with 25+ years of fiber optics expertise.

Ownership category

akta.pro rank

Product category

Fiber Laser and Amplifier Manufacturing

NAICS

Other Communications Equipment Manufacturing (33429)

SIC

Optical Instruments & Lenses (3827)

akta.pro primary industry

Optoelectronic Emitters (LED/Laser/VCSEL) (HDAHALAL)

Keywords

• Fiber laser manufacturing
• Fiber amplifier systems
• Photonics components
• OEM laser modules
• Scientific laser sources

Headquarters

HQ city

Lannion

HQ country

France

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Operations, Technology or R&D, Infrastructure, Marketing or Sales, Supply Chain

Revenue model

1. Fiber Lasers and Amplifiers: Manufacture and sale of high-performance fiber lasers and fiber amplifiers for scientific, industrial, and military applications. Products include CW Amplifiers (Ytterbium, Erbium, Thulium, Frequency Converted), Pulsed Amplifiers, CW Lasers (Ytterbium, Visible, Raman, Erbium, Thulium), and Pulsed Lasers (UV, Green, Ytterbium, Erbium). Available as OEM modules or benchtop units.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels5 records

Core offering

Keopsys designs, develops and manufactures fiber lasers and fiber amplifiers sold as OEM modules or benchtop units across CW and pulsed configurations and wavelengths covering UV, visible, Ytterbium (1 µm), Erbium (C/L-band, 1.5 µm), Thulium (2 µm) and Raman. Products are deployed in defense, environmental/LIDAR, scientific research, space, medical and telecommunications applications, and are available as standard solutions or custom-engineered designs.

Product overview

Keopsys (a Lumibird Group company) manufactures high-performance fiber lasers and fiber amplifiers available as OEM modules or benchtop units. The product portfolio includes four main categories: CW Amplifiers (Ytterbium, Frequency Converted, Erbium C-band/L-band, Thulium), Pulsed Amplifiers (Erbium), CW Lasers (Ytterbium, Visible, Raman, Erbium, Thulium), and Pulsed Lasers (UV, Green, Ytterbium, Erbium). Products serve LIDAR, defense, scientific research, medical, space, and telecommunications applications. Key series include CYFA-PB for Ytterbium amplification, CEFA-C-PB-HP for high-power Erbium C-band, PYFL-KULT for compact pulsed Ytterbium (25 kW peak), and PEFA-LP-C for wind monitoring. The company emphasizes compact design, 100% reliability, and maintenance-free operation with a 1-year full warranty.

Differentiator

Problem solved

Functional benefit

Products and services

• CEFA-C-WDM-LP Series Erbium-Doped Fiber Amplifiers Erbium-doped fiber amplifiers designed for Dense Wavelength Division Multiplexing (DWDM) applications in telecommunications networks.
• CVFA Series Frequency Converted Fiber Amplifier Continuous-wave frequency-converted fiber amplifiers operating at 5xx and 7xx nm wavelengths for scientific research applications.
• CTFA-PB Series CW Thulium Fiber Amplifier Continuous-wave Thulium-doped fiber amplifier delivering up to 40 dBm output power in the 2000-2050 nm wavelength range, with high signal-to-noise ratio and near-diffraction-limited beam quality.
• CEFA-C-PB-HP Series High-Power Erbium Fiber Amplifier Multi-stage Erbium-doped fiber amplifier providing up to 43 dBm output power for high-power C-band applications.
• CEFA-L-PB-HP Series L-Band Erbium Fiber Amplifier L-band high-power continuous-wave Erbium fiber amplifier delivering up to 37 dBm output power for extended wavelength applications.
• CYFA-PB Series Ytterbium Fiber Amplifier Multi-stage Ytterbium-doped fiber amplifier for high-power applications in the 1 µm wavelength range.
• PEFA-SP-C Series Pulsed Erbium Fiber Amplifier Pulsed Erbium-doped fiber amplifier designed to amplify picosecond pulses for time-critical applications.
• CVFL-GIGA Series Visible Fiber Lasers Visible-wavelength continuous-wave fiber lasers emitting at 5xx and 6xx-7xx nm for super-resolution microscopy and biotechnology applications.
• CVFL KILO Series Frequency-Converted Fiber Lasers Frequency-converted fiber lasers providing precise wavelengths for atomic cooling and quantum research.
• CYFL-KILO Series CW Ytterbium Fiber Laser Single-frequency CW Ytterbium fiber laser delivering up to 20W output power for scientific applications including atomic cooling.
• CYFL-MEGA Series Ytterbium-Doped Fiber Laser Continuous-wave Ytterbium-doped fiber laser designed for Second Harmonic Generation applications.
• CEFL-KILO Series Single-Frequency Fiber Laser Single-frequency Erbium fiber laser delivering up to 20W output power for atomic cooling applications.
• CRFL Series Continuous Raman Fiber Laser Continuous Raman fiber laser providing up to 20W output power for distributed Raman amplification.
• PYFL-PICO Series Picosecond Pulsed Ytterbium Fiber Laser Pulsed Ytterbium fiber laser with picosecond pulses (~50 ps) at 1064 nm with 100 MHz repetition frequency, used as a seeder for high-energy amplifiers and for confocal microscopy and Raman spectroscopy.
• PYFL-KULT Pulsed Ytterbium Laser Compact and rugged pulsed Ytterbium laser on the Kult platform delivering up to 25 kW peak power with 1-50 ns pulse duration for 3D scanning, ranging and telemetry.
• PYFL-MIRVISION Pulsed Ytterbium Fiber Laser High peak-power pulsed Ytterbium fiber laser delivering up to 25 kW for range-finding applications.
• PEFL-EOLA Pulsed Erbium Fiber Laser Long-pulsed Erbium fiber laser providing up to 400 µJ pulse energy for environmental monitoring applications.
• PEFL-MIRVISION Pulsed Erbium Fiber Laser High peak-power pulsed Erbium fiber laser delivering up to 25 kW peak power for range-finding applications.
• PEFL-KULT Pulsed Erbium Doped Fiber Laser Pulsed Erbium-doped fiber laser on the Kult platform delivering up to 100 µJ pulse energy for 3D scanning applications.
• PEFA-LP-C Series Pulsed Erbium Fiber Amplifier Pulsed Erbium fiber amplifier for wind monitoring with long-pulse operation at 1.5 µm wavelength.
• PUFL Series Pulsed UV Fiber Laser Pulsed UV fiber laser in an ultra-compact laser transmitter configuration for applications requiring UV wavelength output.
• PGFL Series Pulsed Green Fiber Laser Compact green pulsed fiber laser for underwater telemetry applications.
• CTFL-TERA Series CW Thulium Fiber Laser Continuous-wave Thulium fiber laser delivering up to 20W output power for medical urology applications.
• CEFL-TERA Series CW Erbium Fiber Laser Continuous-wave Erbium fiber laser providing up to 20W output power for spectroscopy and non-linear applications.
• CW 1.5 µm Fiber Amplifiers (C-band & L-band) Full range of CW 1.5 µm fiber amplifiers covering C-band and L-band for Free Space Optics communication, Optical Ground Station, quantum, testing and sensing applications.
• CHFA Hybrid Fiber Amplifier Hybrid fiber amplifier combining FPGA and DAC technologies in a compact module, delivering 21 dBm output power and 15-25 dB gain for high-capacity telecommunications.
• CEFA-C-BD Bi-directional Fiber Amplifier Bidirectional Erbium-doped fiber amplifier for long-distance controllable applications, supporting very low input signals down to -45 dBm with 12-21 dB gain and noise figure below 5 dB.

Quantifiable outcome

• World record: 38.4 Tbps over 762 km transmission achieved using Keopsys hybrid amplifiers
• +1 more outcomes

Named customers2 records

Segments6 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Ten partnerships are on record, tiered moderate, core and minor.

• Lawrence Livermore National Laboratory (LLNL) - StarfiremoderateStrategic or Co-development Partner · 10 September 2025Hub for inertial fusion energy where Lumibird joined working group bringing together laser diode experts. Part of major fusion projects alongside Megajoule laser (where Lumibird supplies ytterbium fiber amplifiers and CEA's 96 preamplifier modules).
• MIGA Project (LP2N)moderateStrategic or Co-development Partner · 12 July 2017Matter Wave Laser Interferometric Gravitation Antenna project. Keopsys provides low noise and highly stable amplifiers used to amplify narrow linewidth source at 1550nm up to 2-5W, doubled to 780nm for atomic transition experiments detecting gravitational waves.
• 4F Project ConsortiumcoreStrategic or Co-development Partner · 4 July 2017French consortium for developing microstructured optical fiber manufacturing for future lasers. Includes Amplitude, Eolite Systems, Quantel, Keopsys, Thales, Azur Light Systems, GLO Photonics, and research institutions (Ecole Polytechnique, CNRS Xlim, PhLAM/IRCICA, Foton, Photonics Bretagne-PERFOS, ALPhANOV). Project 4F received €7 million funding from Bpifrance under the Programme d'investissements d'avenir (PSPC).
• REFIMEVE+ ConsortiumminorStrategic or Co-development Partner · 30 September 2015Réseau Fibré Métrologique à Vocation Européenne - French consortium for optical frequency metrology at continental scale. Uses Keopsys bidirectional amplifiers for long distance ultra-stable optical frequency transfer between atomic clocks.
• EkinopscoreTechnology or Integration · 22 June 2015Partnership enabled Orange to set world record in optical transmission: 38.4 Tbps over 762 km (Lyon-Marseille-Lyon). Keopsys provided hybrid fiber amplifier technology for the SASER-Siegfried project.
• EPIC (European Photonics Industry Consortium)moderateStrategic or Co-development PartnerLeading European Photonics Industry Consortium, a membership-led not-for-profit industry association promoting sustainable development of photonics organizations. Members encompass the entire value chain from LED lighting, PV solar energy, Silicon photonics, Optical components, Lasers, Sensors, Displays, Projectors, Optic fiber, and related technologies.
• Images et RéseauxmoderateStrategic or Co-development PartnerWorld-leading cluster bringing together industry and research players who combine forces to imagine future needs and provide solutions. Members work jointly on research and development projects as the main driving force behind growth and jobs.
• Photonics BretagnemoderateStrategic or Co-development PartnerRegional photonics cluster in Brittany with objectives to create a common brand for local photonics industry, increase interaction between key parties (Industry, Research, Schools), and benefit from efficient organization.
• AFOP (Syndicat professionnel Optique – Photonique)minorOthersProfessional syndicate for optics and photonics industry in France.
• Redfern Integrated Optics (RIO)coreChannel Partner/ Reseller/ DistributorKey distribution partner for France territory. Offers RIO Planex (14-pin Butterfly Package PLANEX ECL laser for fiber optic sensing) and RIO Orion (compact PLANEX ECL module for single frequency low noise source) at 1550nm wavelengths.

Scale indicators5 records

Recent moves9 records

Expansion highlights5 records

Broad incumbents

• Lumentum: US-based provider of photonic products including high-power lasers, optical amplifiers (EDFAs), and telecom components. Overlaps with Keopsys in Erbium-doped fiber amplifiers and pulsed lasers for sensing/LiDAR.
• Coherent Corp: Large diversified photonics and laser manufacturer with broad materials processing, telecom, and scientific portfolios. Comparable to Keopsys in fiber laser and optical amplifier components but operates at much greater scale across many adjacent categories.
• TRUMPF: German industrial laser and machine tool leader offering fiber lasers for cutting, welding, and additive manufacturing. Comparable to Keopsys in industrial fiber laser technology but serves a broader materials processing customer base.
• Thorlabs: US-based broad-line photonics components and instruments supplier with fiber lasers, amplifiers, and OEM modules. Comparable to Keopsys in scientific fiber laser offerings but operates an extensive catalog model with many adjacent product lines.

Direct peers

• IPG Photonics: Global market leader in fiber lasers and amplifiers across industrial, scientific, and defense applications. Directly comparable to Keopsys across Ytterbium/Erbium/Thulium fiber laser and amplifier product lines, with substantially greater scale and vertical integration.
• nLight: US-based manufacturer of high-power semiconductor and fiber lasers serving industrial, aerospace/defense, and medical markets. Overlaps with Keopsys in fiber-coupled laser sources for directed energy, sensing, and materials processing.
• NKT Photonics: Danish specialist in fiber lasers, supercontinuum sources, and photonic crystal fibers for scientific, medical, and industrial markets. Closely comparable to Keopsys in scientific and OEM fiber laser/amplifier offerings.
• Toptica Photonics: Germany-based developer of diode and fiber lasers for scientific research, quantum optics, biophotonics, and metrology. Directly comparable to Keopsys's scientific/quantum single-frequency and narrow-linewidth fiber laser lines.

Emerging players

• Menlo Systems: German specialist in fiber laser-based precision metrology, optical frequency combs, and timing systems. Comparable to Keopsys's scientific/quantum customer set (e.g., REFIMEVE+, MIGA) though focused on integrated frequency comb solutions.
• CILAS: French defense laser specialist (ArianeGroup subsidiary) producing rangefinders, LIDAR, and directed-energy sources. Directly comparable to Keopsys in European defense laser applications and part of Lumibird's broader M&A footprint.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/keopsys

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries2 records

Funding overview

Funding rounds1 record

Investors3 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Keopsys