1.8 GHz 鎖相放大器

簡介

瑞士蘇黎世儀器公司的 GHFLI 鎖相放大器將這類產品的優勢（雜訊抑制、相位靈敏度、頻率追蹤等）延伸到工作頻率高達 1.8 GHz 的應用。
GHFLI 包含兩個用作獨立鎖相放大器的物理通道。 每個通道均配備 4 個支援並行多諧波和多頻率分析的雙相解調器，以及一個用於生成驅動和參考信號的 6 GSa/s 信號產生器。 解調濾波器經過調整可以在雜訊抑制和測量速度之間達到最佳平衡。 USB 和千兆乙太網數位介面能夠以高達 4 MSa/s 的速率將數據連續傳輸到電腦，而 4 個高速輔助輸出埠和 4 個高精度輔助輸出埠可以通過自定義縮放和偏置將測量結果轉換為模擬信號，與其他儀器進行整合。

GHFLI 包括 LabOne® 控制軟體，藉助其圖形使用者介面，可以輕鬆方便地進行設置。 通過該軟體，使用者可以對包括鎖相放大器、具備快速傅里葉轉換 （FFT） 的雙通道示波器、參數掃描器和頻譜分析儀等在內的整個測量工具集進行全方位控制。 此外，所有功能和數據採集都可以通過常用程式設計語言來進行二次開發，支援 LabVIEWTM、MATLAB®、C、. NET 和 Python。

GHFLI 具備低輸入雜訊、寬分析頻寬和超短時間常數等特點，是一款理想的測量工具，適用於要求最嚴苛的微波應用。

應用

GHFLI 可以滿足最嚴苛的應用要求，例如測量和追蹤週期信號以及高達 1.8 GHz 的設備表徵和控制。

感測器：MEMS、NEMS、表面聲波、量子感測
光學設備：鎖模雷射器、泵浦-探測光譜、納米光機械產品、光學鎖相環
自旋量子比特：射頻反射譜、量子比特讀取
失效分析：激光電壓探測和成像

Introduction

The Zurich Instruments GHFLI Lock-in Amplifier extends the advantages of lock-in amplifiers – noise rejection, phase sensitivity, frequency tracking and more – to applications that operate at frequencies up to 1.8 GHz. 
The GHFLI contains two physical channels that operate as independent lock-in amplifiers. Each one is equipped with 4 dual-phase demodulators that enable parallel multi-harmonics and 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 tradeoff between noise rejection and measurement speed. The USB and gigabit ethernet digital interfaces enable continuous data transfer to the computer at up to 4 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.

Trailblazers. The GHFLI and SHFLI Microwave Lock-in Amplifiers.
The GHFLI 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: LabVIEWTM, MATLAB®, C, .NET and Python are supported.

The GHFLI’s low input noise, its wide analysis bandwidth and its very fast time constant make it the ideal measurement tool even for the most demanding microwave applications.

Applications

The GHFLI can serve even the most demanding applications that require measurement and tracking of periodic signals, and device characterization and control up to 1.8 GHz.

• Sensors: MEMS, NEMS, Surface Acoustic Waves, quantum sensing
• Optics: mode-locked lasers, pump-probe spectroscopy, nano-optomechanics, optical PLL
• Spin qubits: RF-reflectometry, qubit readout
• Failure analysis: laser voltage probing and imaging