학술논문
Portable Frequency Stabilized Lasers for Quantum Technologies Using Digital Techniques
Document Type
Periodical
Author
Source
IEEE Transactions on Instrumentation and Measurement IEEE Trans. Instrum. Meas. Instrumentation and Measurement, IEEE Transactions on. 72:1-6 2023
Subject
Language
ISSN
0018-9456
1557-9662
1557-9662
Abstract
Quantum atomic technologies, such as optical clocks and atom interferometers, have demonstrated their potential in laboratory settings; however, their widespread deployment for real-world applications requires significant improvement in their size, weight, power, and cost (SWaP-C). We have fabricated compact laser avionics suitable for laser cooling and spectroscopy applications. The system employs a commercial laser diode, fiber-coupled optics, current and temperature controllers, analog-to-digital converters (ADCs), and all-digital signal processing, and operates on a single 5-V power supply. Using these components, a 780-nm laser has been stabilized to the Rb D2 transition via frequency modulation (FM) spectroscopy, with a SWaP budget of 1 L, 300 g, and less than 10 W. Due to its modular design and digital reprogrammability, the low-SWaP-C system developed here can be applied to devices across the quantum technology sector.