Title :
Frequency stabilized laser for length metrology system in Joule Balance
Author :
Yang Bai ; Pengcheng Hu ; Hongxing Yang ; Yunfeng Lu ; Zhonghua Zhang
Author_Institution :
Harbin Inst. of Technol., Harbin, China
Abstract :
This paper shows a frequency offset-locked laser designed for the length metrology system in the next-generation Joule Balance. This laser integrates most of the components in a limited volume and avoids serious thermal pollution. The frequency stability of this laser is about 4.2×10-10 at the sampling rate of 0.1s, which totally meets the demands of length measurement with the relative uncertainty better than 1×10-8 in Joule Balance.
Keywords :
balances; frequency stability; length measurement; measurement by laser beam; measurement uncertainty; frequency offset locked laser design; frequency stability; length measurement; length metrology system; next generation Joule Balance; relative uncertainty; Fiber lasers; Frequency control; Frequency modulation; Laser stability; Measurement by laser beam; Metrology; Thermal stability; Joule Balance; frequency stability; length metrology; low thermal pollution; offset-locked laser;
Conference_Titel :
Precision Electromagnetic Measurements (CPEM 2014), 2014 Conference on
Conference_Location :
Rio de Janeiro
Print_ISBN :
978-1-4799-5205-2
DOI :
10.1109/CPEM.2014.6898548
