"Diode laser systems for space applications," by Markus Krutzik (Humboldt-Universität Berlin)

Date: 
Tuesday, March 7, 2017 - 2:30pm to 3:30pm
Series: 
AMO Seminars

AMO Seminar

Knudsen Hall Room 4-134
Tuesday, March 7, 2017
2:30PM

Guest Speaker: Markus Krutzik (Humboldt-Universität Berlin)

Talk Title: "Diode laser systems for space applications"

Abstract:

Frequency stabilized laser systems are one of the key elements in modern precision experiments based on cold atom interferometry, optical clocks and spacetime distance measurements. Future space missions such as (quantum)interferometry based gravity mapping, tests of the equivalence principle or the detection of gravitational waves require complex but robust and compact laser systems. 

Semiconductor lasers are a promising candidate for deployment in space - they are small, cost-effective and subject to a rapid performance increase. In this talk, we present a new generation of diode laser systems optimized for precision measurements with ultracold atoms. The systems are based on a micro-integrated laser technology platform devel-oped at the Ferdinand-Braun Institute in a joint lab activity with Humboldt-Universität zu Berlin, providing compact, robust and energy-efficient semiconductor laser modules.

Our laser systems operate in experiments at the Bremen drop tower to study ultracold Rubidium and Potassium atoms with the long-term goal of differential interferometry in microgravity. As a next stepping stone towards orbital deployment of high-precision quantum sensors, we have developed laser payloads for operation on sounding rockets and reached TRL 9 on such sub-orbital vehicles through flight qualification and successful mission operation. We will give an overview about distributed feedback (DFB) and extended cavity diode laser (ECDL) assemblies brought to space for several minutes within the TEXUS 51/53  and MAIUS missions. The latter just recently demonstrated the first BEC in space. Moreover, we  discuss a  high-performance optical frequency reference based on molecular iodine (JOKARUS) scheduled for launch in late 2017, and prospects for nanosatellite-based lasermetrology in space.

Event Attachments: 
Location: 
Knudsen 4-134