High-power, micro-integrated diode laser modules at 767 and 780  nm for portable quantum gas experiments

Abstract

We present micro-integrated diode laser modules operating at wavelengths of 767 and 780 nm for cold quantum gas experiments on potassium and rubidium. The master-oscillator-power-amplifier concept provides both narrow linewidth emission and high optical output power. With a linewidth (10 μs) below 1 MHz and an output power of up to 3 W, these modules are specifically suited for quantum optics experiments and feature the robustness required for operation at a drop tower or on-board a sounding rocket. This technology development hence paves the way toward precision quantum optics experiments in space.

BOOST: A satellite mission to test Lorentz invariance using high-performance optical frequency references

“…508 nm) might be of interest for addressing hyperfine spectra near the B-state dissociation limit of molecular iodine. These diode laser modules operate in experiments at the Bremen drop tower to study ultra-cold atomic gases [64], and have been used in several sounding rocket missions to realize optical frequency references [65,66] as well as the first Bose-Einstein condensate in space [23,67]. Currently, a compact iodine frequency reference is prepared for launch in April 2018 aboard the TEXUS 54 sounding rocket as an important qualification step towards space application [21].…”

A compact and robust diode laser system for atom interferometry on a sounding rocket

“…Figure 2 shows a fiber coupled MOPA module mounted on such a CCP. An extensive description of the employed laser technology can be found in [32]. For operation of the MAIUS experiment four laser modules are used (see Figure 3a).…”

An absolute optical frequency reference for space

“…This system is operated with laser diode technology developed by the Ferdinand-Braun Institute Berlin [13,14] A microintegrated 1064 nm master-oscillator power-amplifier (MOPA) module consisting of a narrow line-width extended cavity diode laser (ECDL) master oscillator and a power amplifier are used as light source for spectroscopy, providing a fiber coupled 500 mW output power [15]. While EBB and EM setups use AOMs for phase modulation, an EOM is used here because the corresponding driver electronics has lower power consumption and is less complex and easier to implement.…”