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High-performance laser frequency stabilization scheme of Shandong University Institute of Oceanography

High-performance laser frequency stabilization scheme of Shandong University Institute of Oceanography

Marine sensor research team of Institute of Oceanography, Shandong University

The Institute of Oceanography of Shandong University is an independent scientific research institution directly under the university, relying on the comprehensive advantages of Shandong University's disciplines, to create a first-class marine science platform for interdisciplinary innovation, and to build an emerging interdisciplinary discipline with multidisciplinary and cross-field integration and development such as marine biology, marine chemistry, marine environment, marine geology, mechanical engineering, electronic science and technology, control science and engineering, etc. Guided by the major needs of the country, led by the frontier of international marine science and technology, and based on the micro-system chip of marine sensors based on optoelectronic integration, the marine sensor research team develops emerging disciplines involving cross-field cross-integration such as electronic science and technology, optical engineering, marine biology, marine chemistry, mechanical manufacturing, detection technology and automatic control, artificial intelligence and robot learning.

▍Challenges faced by customers

The marine sensor research team of the Institute of Oceanography of Shandong University needed a set of high-stability DFB laser frequency stabilization scheme. The traditional oscilloscopes, signal generators, lock-in amplifiers and other instruments in the laboratory are independent, produced by different manufacturers, with large volume and high unit price. The customer was looking for a simple, lightweight, and efficient laboratory test and measurement system solution to replace traditional measuring instruments and reduce procurement costs.

▍Moku: Lab Solution/Product Advantages

The Moku Laser Lock Box uses high-performance modulation technology to stabilize the frequency of the laser to a reference cavity or atomic transition. It can be used for most lasers and frequency references such as Pound-Drever Hall (PDH), Dither locking, RF locking, and Heterodyne offset phase locking, as well as for stabilizing the frequency of CW lasers. Moku:Lab's single laser frequency-locking/stabilizing instrument integrates the functions of waveform generator, oscilloscope, filter, and PID controller, including automated programs such as fast and accurate scanning and advanced locking diagnostics, and can quickly lock to the zero intersection point after the error signal is demodulated, providing an all-in-one solution for laser frequency stabilization.

After a thorough product research and testing, the marine sensor research team decided to use Moku:Lab for laser frequency stabilization. It not only meets the needs of scientific research projects, but also can further apply Moku:Lab to experimental teaching.

Powerful, cost-effective

Moku:Lab integrates 12 professional instruments into one device: oscilloscope, lock-in amplifier, spectrum analyzer, arbitrary waveform generator, frequency response analyzer, digital filter, laser frequency-locked/stabilized, waveform generator, phase meter, data logger, PID controller, and FIR filter generator. These instruments are commonly used in laboratories and are suitable for applications such as signal acquisition, processing and analysis, and control systems. Moku:Lab can now replace most traditional signal test and measurement instruments with a single device for comprehensive time, frequency, and phase characterization of signals. Moku:Lab is equipped with a variety of research-grade instrument functions, breaking the limitations of insufficient hardware equipment, and helping universities to introduce innovative practical teaching systems and carry out modern teaching experiments. Save the space and cost of the experimental platform to the greatest extent, optimize the experimental teaching environment, and reasonably allocate teaching resources.

The integration is simple, flexible and efficient

Moku:Lab is equipped with user-friendly and intuitive control software for iPad and Windows, allowing users to wirelessly configure and control instrument functions anytime, anywhere. The unified and intuitive operator interface not only saves time in learning instrument operation, but also provides a consistent user experience, which can greatly save valuable research time and improve work efficiency. In addition, Moku:Lab offers application programming interfaces (APIs) including LabVIEW, Python, and MATLAB, allowing users to integrate Moku:Lab's measurement capabilities into existing operating software interfaces through API programming.

Moku:Lab is based on FPGA, and the unique advantage of FPGA reconfigurability makes Moku:Lab scalable and upgradeable

 

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