PERSYST is a research plateform of Foton Institute located in Lannion.
We are providing expertise and technical facilities for the development and the characterization of optical systems, sub-systems and devices in particular for high-speed optical communication.
We engage in collaborative research programs and provide commercial service to
businesses, in particular start-ups and SMEs, but also larger companies or research infrastructures wishing to benefit from our expertise as well as test and measurement facilities.


PERSYST
Platform for Evaluation and Research on optical telecommunication SYSTems

Contact
Technical facilities
Tests of novel devices for optical communications and signal processing
Typical characterizations
- For packaged devices or unpackaged chips
- Optical and electro-optical response measurements
- Dynamic chirp measurement
- Possibility to couple with other facilities for full system assessment
Available equipments
- RF probe setup (up to 50 GHz) and optical coupling (vertical grating couplers, edge coupling)
- Vector spectrum analyser up to 70 GHz.
- Optical spectrum analysers, including high-resolution models (down to 0.04 pm).
- High-speed sampling oscilloscopes (BW 70 GHz).
- Electrical spectrum analysers (BW 50 GHz).



Coherent optical transmissions <= 50 Gbaud
Typical characterization
- Subsystem and link characterisation typically assessed by bit-error-rate and power / optical signal-to-noise ratio penalty measurements
- IQ modulation (QPSK, QAM16) and coherent detection, off-line and real-time digital signal processing
- Fiber links (from several hundreds to several thousands of kilometres)
- Wavelength division multiplexing
Available equipments
- Quad driver (40 GHz)
- IQ modulator (25 GHz)
- Integrated, polarisation diversity coherent detector (30 GHz)
- Real time oscilloscope 4 channels, 100 GS/s, 33 GHz BW
- 8 bits DAC, 88 GS/s sampling rate, 25 GHz BW
- Off-line DSP with standard algorithms
- 200 Gb/s transciever (28 GBaud Pol-Mux – QAM16) and real time system assessment
- Fibre (SSMF, NZDSF), EDFA, recirculating loop
- 40 WDM channels, C band, 100 GHz channel spacing



Intensity modulation and detection links (<= 50 Gbaud)
Typical characterization
- Subsystem and link characterisation typically assessed by real time bit-error-rate
- Eye diagram analysis, power / optical signal-to-noise ratio penalty measurements
- NRZ, RZ, PAM4, PAM8 modulation formats up to 50 Gbaud, direct detection, optically pre-amplified receiver
- Short links standard transceivers (XFP)
- Long haul transmissions links (hundred to several thousands of kilometres)
- WDM
Available equipements
- Emission, amplification and detection at 850 nm, O, C, L bands
- Electro-optical modulators up to 45 GHz
- Pseudo random bit sequence generator (up to 64 Gbaud)
- 3 bit DAC 60 Gbaud (for PAM4 and PAM8)
- Error detector (up to 60 Gbaud)
- Analogic FIR filter (6 TAP, 8 ps delay, BW 65 GHz)
- Eletrically pre-amplified photodiode up to 45 GHz
- Equivalent time oscilloscope (BW 70 GHz)
- 10GPON transportable test setup




Tests of novel devices for optical communications and signal processing

Coherent optical transmissions <= 50 Gbaud

Intensity modulation and detection optical links (<= 50 Gbaud)
Work with us

Contact
You are always welcome to contact us to discuss your optical characterisation needs:

Rates
If you have a standard need, we can directly charge the service following this price list:

For a customised need, a collaboration contract will be defined accordingly in order to fully answer your term of reference.
Terms and conditions
For a direct charging, we will kindly ask you to sign a terms and conditions document. In case of a collaboration contracts, terms and conditions will be specified in the contract.
Training
Lab works are delivered for Master’s degree students using the PERSYST plateform equipments.
These two main topics are available on demand:
- High bit rate optical communications
- Coherent optical communications
Other trainings could be proposed on demand depending on your needs.
They trust us
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People working on PERSYST
-
BRAMERIE Laurent
(+33)2 96 46 91 28 Research Engineer Responsable technique Persyst
-
GAY Mathilde
(+33)2 96 46 91 62 Research Engineer Responsable scientifique Persyst
-
LOBO Sébastien
(+33)2 96 46 91 26 Assistant Engineer