Title :
A digital optical phase-locked loop based on field programmable gate array and its applications
Author :
Zhouxiang Xu ; Kaikai Huang ; Xuanhui Lu
Author_Institution :
Dept. of Phys., Zhejiang Univ., Hangzhou, China
Abstract :
A highly digital optical phase-locked loop (OPLL) is designed and implemented to generate phase-coherent lasers in quantum optics. All the controlling circuit in this OPLL are implemented in a single field programmable gate array (FPGA) chip. Pipeline and parallelism technology have been adapted in PID controller. Especially, an equivalent 3.5 GHz high speed clock and twisted ring counter have been integrated in the most crucial part. This OPLL has the narrow beat note line width below 1 Hz, residual mean-square phase error of 0.05 rad2 and transition time of 100 μs under 10 MHz frequency step.
Keywords :
field programmable gate arrays; light coherence; mean square error methods; optical phase locked loops; pipeline processing; quantum optics; three-term control; FPGA; OPLL; PID controller; beat note line width; digital optical phase-locked loop; field programmable gate array; frequency 3.5 GHz; mean-square phase error; parallelism technology; phase-coherent lasers; pipeline technology; quantum optics; time 100 mus; transition time; Clocks; Digital filters; Diode lasers; Field programmable gate arrays; Phase frequency detector; Phase locked loops; Radiation detectors; FPGA; PFD; PLL; high speed clock; twisted ring counter;
Conference_Titel :
Information Science, Electronics and Electrical Engineering (ISEEE), 2014 International Conference on
Conference_Location :
Sapporo
Print_ISBN :
978-1-4799-3196-5
DOI :
10.1109/InfoSEEE.2014.6947776
