A long-term frequency stabilized deep ultraviolet laser for Mg+ ions trapping experiments

Abstract

As many precision laser spectroscopy experiments require frequency stabilized lasers, development of long-term stabilized lasers is of great interest. In this work, we report long-term frequency stabilization of a 280 nm deep ultraviolet laser to a high precision wavemeter with digital servo control such that the long-term drift of the laser frequency was greatly reduced. Long-term laser frequency drift was measured with a fiber frequency comb system over 8 h. After locking, the maximum drift rate of the 280 nm laser was lowered from 576 MHz/h to 6.4 MHz/h. With proper environment control of the wavemeter, the maximum drift rate of the 280 nm laser was further lowered to less than 480 kHz/h. The locked laser system was successfully used in a Mg(+) ions trapping experiment, which was also discussed in this work.

VECSEL systems for the generation and manipulation of trapped magnesium ions

“…To the best of our knowledge, commercial fiber laser systems are not currently available that can reach either 1120 nm for repumping on the 2 S 1/2 ↔ 2 P 1/2 transition or 1141 nm for photoionization. Frequency-quadrupled diode laser systems are available that cover all required wavelengths for magnesium ion experiments [16]. These systems are currently limited to about 2 W of IR power if a tapered amplifier is used to amplify the diode seed laser.…”

Long-term wavelength drift compensation of tunable pulsed dye laser for sodium detection lidar

“…Various techniques for stabilizing a continuous-wave (CW) laser wavelength have been well developed and used in vary fields [5][6][7][8][9][10]. Nevertheless fewer methods have been proposed for a pulsed-output laser directly.…”

Ultraviolet laser spectroscopy of aluminum atoms in hollow-cathode lamp

“…The uncertainty of the wavemeter is better than 0.3 MHz at measurement cycle of dozens seconds, which is mainly limited by temperature fluctuations in the lab [30]. The wavemeter is calibrated by a 534 nm laser which is generated by frequency doubling of an ultra-stable laser at 1068 nm.…”