YOUR ULTRALOW NOISE SYSTEMS.

SILENTSYS develops, produces, and commercializes solutions in photonics, microwave/THz, and electronics. With patented designs and extensive expertise, the products are compact and user-friendly. SILENTSYS targets emerging industrial and lab needs, especially in quantum technologies, metrology, sensing, and communications, offering cutting-edge performance tailored to modern applications.

PHOTONICS

We offer compact, plug and play, and convenient off-the-shelf products for your lab experiments and industrial developments.

Optical Frequency Discriminators

The OFD-X systems smartly deliver a voltage signal that is proportional to the frequency fluctuations of the input laser beam. These turn-key modules are suitable for laser frequency noise characterization and/or for laser frequency stabilization to drastically reduce its optical full width at half maximum linewidth. The OFD-X feature ultralow noise performances that can successfully achieve frequency noise levels as low as 0.01 Hz²/Hz, while remaining in a compact and user-friendly package.

Balanced Photodetectors

The ULN-PDB modules are plug-and-play ultralow noise balanced photodetectors in a compact and user-friendly package. They are proposed with InGaAs, Si, or Extended InGaAs photodiodes and offer a selection of bandwidths and gains in DC- or AC-coupled versions. Moreover, the ULN-PDB-x4 version offers 4 balanced photodetectors in one unit. The ULN-PDB modules offer adaptable optical coupling like free-space, FC/APC, FC/PC (either wide or narrow key) with additional mechanical adaptors.

Brillouin Laser

The SLIM LINER, a high spectral purity laser source, is a single-frequency, ultra-narrow linewidth laser. It is based on the Self-Narrowing Photonic Oscillator (SNPO) technology developed by the Institut Foton at Université de Rennes in France. A pump laser is locked onto a cavity using stimulated Brillouin scattering, which offers an extremely narrow gain bandwidth, naturally favoring a high spectral purity.

Laser Source Analyzer

The LSA module is a plug-and-play laser source analyzer. It can measure the temporal evolution of the laser’s emission frequency, the frequency/phase noise spectrum in three different units, the temporal evolution of the laser’s power, and the relative intensity noise spectrum (RIN), while allowing exporting raw data and plots, in a form compatible with a 19-inch 3U rack.

ELECTRONICS

SILENTSYS proposes different electronic modules that aim to improve your setups, experiments and systems.

Servo Controllers

PID-X are high-speed servo controllers that are digitally controlled using an integrated touchscreen. They provide functionalities like Proportional gain, simple Integrator, double Integrator, and more depending on the version. They feature ultralow voltage noise, high open-loop gain, a large bandwidth, and they are very easy to use.

Voltage Amplifier

The FIL-01 is an electronic high-pass filter and amplifier module developed to offer the best performances in terms of voltage noise characterization. FIL-01 acts as an AC coupling filter by removing the DC component of the input signal with a cut-off frequency of 600 mHz. The output signal is also amplified by a factor of 2000 (66 dB amplification) with a 3MHz bandwidth and an input voltage noise of 0.6 nV/√(Hz).

Power Supplies

The ALM-X are power supply modules. They have been developed to offer the best performances in terms of output voltage noise and stability. ALM-01 offers 3 ultralow noise output voltages (standard version 5VDC, 12VDC and 15VDC) with up to 25 W in total, ALM-05 offers a 5VDC voltage output with a maximum of 3A, and ALM-08 provides two voltages : a 2VDC output at up to 8A and a 5VDC output at up to 1A.

Current Drivers

The DRV-01 is an ultralow noise current source. It has been developed to offer the best performances in terms of output current suitable for floating diode lasers. It provides up to 700 mA DC current with fast external modulation. The electronic circuit is integrated in a modern designed aluminum enclosure with standard connectors for an easy use.

NTC Meter

ACQ-01 is an ultrahigh-precision NTC meter. It is an ultralow noise acquisition system for thermistors, it accurately reads up to 6 thermistors simultaneously, and it is provided with a dedicated software for precise temperature monitoring and recording.

THz/GHz

We provide laser frequency stabilization/down conversion systems that enable low-noise THz or GHz signal generation.

Optical Frequency Correlators

The OFC-X systems are comprised of a common 2-input optical frequency discriminator (OFD). This makes it possible to frequency stabilize two wavelength-distant lasers onto the same optical reference to reduce their frequency fluctuations and to correlate them. Based on this fact, the optical beat frequency between the two stabilized lasers generates a THz or GHz signal that reaches a very low frequency noise level and high frequency stability.

SERVICES

Specialized support in consulting, custom solutions, or measurement campaigns at our premises or yours.

Based on our unique combination of in-house expertise, SILENTSYS is able to transform your ideas and innovations into a proof-of-concept, or even an industrial product. It can be an application in Photonics, Electronics, GHz / THz, and anything in between.
Feel free to get in touch to share your project with us!