Dual channel microwave lock-in amplifier The Zurich Instruments SHFLI Lock-in Amplifier brings the advantages of lock-in amplifiers – noise rejection, phase sensitivity, frequency tracking and more – to applications that operate at frequencies up to 8.5 GHz. The SHFLI contains two physical channels that operate as independent lock-in amplifiers. Each one is equipped with 4 dual-phase demodulators that enable parallel multi-frequency analysis and with a 6 GSa/s signal generator for drive and reference signals. The demodulator filters can be tuned to give the best trade-off between noise rejection and measurement speed. The USB and gigabit ethernet digital interfaces offer continuous data transfer to the computer at up to 2 MSa/s while the 4 high-speed and 4 high-precision auxiliary outputs can convert the measurement results, with custom scaling and offset, into analog signals for integration with other instruments. The SHFLI includes the LabOne ® control software that makes setting it up easy and convenient thanks to its graphical user interface. It also provides firm control over the entire measurement toolset that comprises the lock-ins, a dual-channel oscilloscope with FFT, a parametric sweeper, a spectrum analyzer and much more. Additionally, all the functionality and data acquisition can be accessed through the major programming languages for ease of integration; LabVIEW TM, MATLAB ®, C,.NET and Python are supported. The SHFLI’s low input noise, its wide measurement window and its very fast time constant make it the ideal measurement tool even for the most demanding microwave applications. Key Features - Frequency Range: DC – 8.5 GHz - Minimum demodulator time constant: 14 ns - 2 independent lock-in units with signal generators - 4 independent demodulators per lock-in unit - 4 high-speed and 4 high-precision auxiliary outputs - LabOne ® toolset Applications The SHFLI can serve even the most demanding applications that require measurement and tracking of periodic signals, and device characterization and control up to 8.5 GHz. - Sensors: MEMS, NEMS, quantum sensing, Surface Acoustic Waves - Optics: mode-locked lasers, pump-probe spectroscopy, nano-optomechanics, optical-PLLs - Spin qubits: RF-reflectometry, qubit readout General Dimensions 449 × 460 × 145 mm 3 17.6 × 18.1 × 5.7 inch 3 Power supply AC: 100 – 240 V, 50/60 Hz Signal Inputs and Outputs Frequency range DC – 8.5 GHz Analysis bandwidth 1 GHz (> 0.8 GHz) Impedance 50 Ω (Input/output) Input noise floor ≤ 3.5 nV /√Hz (< 0.8 GHz) ≤ 2.5 nV /√Hz (> 0.8 GHz) Dynamic reserve 100 dB (typical) Input ranges 10 mV pk – 1 V pk (< 0.8 GHz) 1 mV pk – 1 V pk (> 0.8 GHz) Output ranges 10 mV pk – 0.5 V pk (< 0.8 GHz) 10 mV pk – 1 V pk (> 0.8 GHz) D/A conversion 14 bit, 6 GSa/s Demodulators No. of demodulators 8 dual-phase Continuous data rate 2 MSa/s (max) Triggered data rate 50 MSa/s (max) Time constant 14 ns – 21 s Demodulator BW 3.2 mHz – 11 MHz Filter slopes (dB/Oct) 6, 12, 18 and 24 Auxiliary & Others Auxiliary Outputs (High precision) 4 Channels, ±4 V (in 50 Ω), 18 bit, 1 MSa/s, 200 kHz Auxiliary Outputs (High speed) 4 Channels, ±4 V (in 50 Ω), 14 bit, 50 MSa/s, 15 MHz Auxiliary Inputs 2 Channels, ±1.5 V, 14 bit Triggers 4 inputs, 4 outputs Clock (in/out) 10 MHz or 100 MHz Connectivity USB 3.0, LAN 1GbE
Zurich instruments’ lock-in amplifiers are ideal instruments for measuring the amplitude and phase of periodic signals from a large variety of optical experiments, covering the range from elementary to cutting-edge experimental designs. Thanks to their low input noise and large dynamic reserve, they can detect minute signals and achieve large signal-to-noise ratios (SNRs) quickly and reliably. Each instrument is equipped with a set of advanced measurement tools, such as an oscilloscope, a parametric sweeper, a spectrum analyzer, and more,allowing you to characterize your optical signals more comprehensively. Additionally, if an analog interface to other instruments is needed — for example, a control voltage for laser cavities or delay lines — internal measurement results or other customizable signals can easily be routed out from the instruments via the auxiliary output connectors. This toolset, together with several field upgradeable options, expand the functionality of the instruments well beyond lock-in amplification,making them a perfect fit for the demanding requirements of many applications. Each of these functionalities can be controlled through LabOne®,a proprietary software of Zurich Instruments.This platform-independent instrument control tool provides users with a powerful and intuitive user interface, together with support for the most popular programming languages. These features make Zurich Instruments' lock-in amplifiers extremely versatile, allowing them to be tailored to any experimental setup, reducing experiment complexity and decreasing the time to publication. Explore higher frequency domains of your optical experiment with high noise rejection and faster measurements: with signal inputs up to 8.5 GHz, Zurich Instruments’ lock-in amplifiers cover a wide range of modulation techniques and applications. Carry out multiple tasks in parallel with one instrument: for example, you can simultaneously perform lock-in detection and boxcar averaging on the signal from the photodetector while running a PID/PLL control loop to stabilize your laser cavity. The parallelization of several experimental aspects allows you to achieve results more efficiently and quickly. Ease of integration: thanks to our APIs (LabVIEW, MATLAB, Python,.NET, C), swiftly connect your lock-in amplifier with all the elements, e.g., delay lines and/or modulators, in your experimental setup.
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Operation from DC to 8.5 GHz 1 GHz bandwidth free from mixer calibration High output power for short qubit gates
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