A5090912459- Magneto-Optical Properties and Applications
- Cold Atom Physics and Bose-Einstein Condensates
- Advanced Fiber Laser Technologies
- Laser Design and Applications
- Photonic and Optical Devices
- Advanced Frequency and Time Standards
- Semiconductor Quantum Structures and Devices
- Semiconductor Lasers and Optical Devices
- Optical Network Technologies
- Spectroscopy and Laser Applications
- Solid State Laser Technologies
- Quantum optics and atomic interactions
- Atomic and Subatomic Physics Research
Ferdinand-Braun-Institut
2021-2023
We determine Faraday rotations and measure the optical reflection transmission from magneto-optical Cd1−xMnxTe crystals with various stoichiometric ratios. For wavelengths between 675 1025 nm, we derive Verdet constants, loss coefficients, complex indices of that are relevant measures to find suitable ratios for realization miniaturized isolators. By measurements, several different discuss observed dependence properties on ratio respect their use in Finally, show figure merit, i.e.,...
Distributed Bragg Reflector semiconductor lasers are ideally suited for quantum technology applications due to their high efficiency, small footprint, and tunability in combination with the frequency stability provided by an integrated selective element. Here we present design, fabrication, electro-optical characterization of DBR optimized strontium-based at 689.449 nm. The devices achieved optical output power up 88 mW, four times more than previously reported, as well a spectral linewidth 0.4 MHz.
We show wavelength-dependent measurements of Verdet constants and reflection/transmission values for various stoichiometric ratios Cd 1 −x Mn x Te. From the data we derive absorption coefficients that help to design optical isolators GaAs-based diode lasers.
Optical atomic clocks based on the spectroscopy of strontium (Sr) atoms currently provide most accurate time and frequency measurements. They reach fractional uncertainties in range 10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">−18</sup> [1], which makes them promising candidates for redefinition second improving, example, accuracy satellite navigation.
We present distributed Bragg reflector lasers optimized for strontium-based quantum technology applications at 689.449 nm. The devices achieved optical output powers up to 88 mW, four times more than previously reported, and a spectral linewidth of 0 . 4MHz.