title: Compact field programmable gate array-based pulse-sequencer and radio-frequency generator for experiments with trapped atoms.
abstract: We present a compact field-programmable gate array (FPGA) based pulse sequencer and radio-frequency (RF) generator suitable for experiments with cold trapped ions and atoms. The unit is capable of outputting a pulse sequence with at least 32 transistor-transistor logic (TTL) channels with a timing resolution of 40 ns and contains a built-in 100 MHz frequency counter for counting electrical pulses from a photo-multiplier tube. There are 16 independent direct-digital-synthesizers RF sources with fast (rise-time of ∼60 ns) amplitude switching and sub-mHz frequency tuning from 0 to 800 MHz.
authors.affiliation: Quantum Metrology Laboratory, RIKEN, Wako-shi, Saitama 351-0198, Japan.
authors.forename: Thaned
authors.initials: T
authors.lastname: Pruttivarasin
authors.affiliation: Quantum Metrology Laboratory, RIKEN, Wako-shi, Saitama 351-0198, Japan.
authors.forename: Hidetoshi
authors.initials: H
authors.lastname: Katori