Position at Toptica
Toptica has an open ESR (PhD) position on the topic "High spectral purity and very low frequency noise".
Lasers are essential components of ultracold-atom based quantum sensors, such as the integrated quantum clock. This device requires laser with a narrow linewidth, high spectral purity, and ideally a very low phase noise. Another important component is the frequency comb laser that transfers the spectral purity of clock transition to various wavelengths and down to the radio frequencies. For the integrated quantum clock, compactness and ruggedized design are further requirements. In this project the ESR will investigate several approaches to achieve these goals with semiconductor-based laser systems.
i) Identifying approached for compact high-spectral purity and very low frequency noise lasers satisfying requirement of integrated Sr quantum clocks: The ESR will familiarise with the laser technology required for integrated strontium quantum clocks. Based on these system requirements, the ESR will identify viable approaches towards realising a low-phase noise clock laser and other cooling, lattice and re-pump lasers.
ii) Designing of the laser and required optical systems:
Based on the first task, the ESR will design the laser and required optical and electronic systems. Once the design has been finalized, the ESR will built the laser and its auxiliary systems. The ESR will work on novel laser lock and rapid wavelength tuning techniques. The design will incorporate control interfaces which allow a facile integration of the system with standard computer controls. The ESR will also provide program code for the operation and interfacing of the laser.
iii) Demonstration of spectral purity and phase noise:
Once the laser system is realised, the ESR will thoroughly characterise the device and optimize or modify were required. The ESR will investigate the concepts of stability transfer from optical transition to the microwave region. In a follow-up step, the laser will be used as part of an integrated quantum clock.
For more information please contact personal [at] toptica.com.
Lasers are essential components of ultracold-atom based quantum sensors, such as the integrated quantum clock. This device requires laser with a narrow linewidth, high spectral purity, and ideally a very low phase noise. Another important component is the frequency comb laser that transfers the spectral purity of clock transition to various wavelengths and down to the radio frequencies. For the integrated quantum clock, compactness and ruggedized design are further requirements. In this project the ESR will investigate several approaches to achieve these goals with semiconductor-based laser systems.
i) Identifying approached for compact high-spectral purity and very low frequency noise lasers satisfying requirement of integrated Sr quantum clocks: The ESR will familiarise with the laser technology required for integrated strontium quantum clocks. Based on these system requirements, the ESR will identify viable approaches towards realising a low-phase noise clock laser and other cooling, lattice and re-pump lasers.
ii) Designing of the laser and required optical systems:
Based on the first task, the ESR will design the laser and required optical and electronic systems. Once the design has been finalized, the ESR will built the laser and its auxiliary systems. The ESR will work on novel laser lock and rapid wavelength tuning techniques. The design will incorporate control interfaces which allow a facile integration of the system with standard computer controls. The ESR will also provide program code for the operation and interfacing of the laser.
iii) Demonstration of spectral purity and phase noise:
Once the laser system is realised, the ESR will thoroughly characterise the device and optimize or modify were required. The ESR will investigate the concepts of stability transfer from optical transition to the microwave region. In a follow-up step, the laser will be used as part of an integrated quantum clock.
For more information please contact personal [at] toptica.com.
