Strontium Rydberg Atom and Optical Clock Applications
PerciLasers' narrow linewidth high-power lasers cover wavelengths from ultraviolet to infrared, and can provide lasers of various wavelengths for the excitation of Rydberg atoms, realizing quantum computing based on strontium Rydberg atoms and strontium atomic optical clocks. Quantum computing based on strontium atoms Rydberg requires narrow linewidth lasers of various wavelengths for cooling, trapping, and manipulating atoms, as shown in the following figure [1]
High-power, low-noise lasers for optical tweezers
Real photos | wavelength | power | Solution Overview | Features |
| 813nm | 2W-15W | Used for strontium atomic optical clocks and Rydberg atoms, magic light wavelengths. It is achieved through the scheme of frequency summing of erbium-doped fiber lasers and thulium-doped fiber lasers, where the erbium-doped fiber laser is realized by a fixed external cavity semiconductor laser and an erbium-doped fiber amplifier. | High power Ultra-low intensity noise Never mode-hop |
Narrow linewidth lasers for quantum state manipulation and excitation of atoms
In order to achieve a laser covering multiple wavelengths from the ground state to the excited state of strontium atoms, PerciLasers has launched a widely tunable laser that perfectly combines the wide tuning characteristics of external cavity semiconductor lasers and the high power characteristics of fiber amplifiers.
Real photos | wavelength | power | Solution Overview | Features |
| 461nm | 1.5W | Frequency quadrupling of thulium-doped fiber lasers | High Power Never mode-hop Excellent beam quality High frequency stability |
| 698nm | 2-10W | Ytterbium-doped fiber DFB and Thulium-doped fiber DFB sum frequency realization | High Power Never mode-hop Excellent beam quality High frequency stability |
| 689nm | 0.5-8W | Ytterbium-doped fiber DFB and Thulium-doped fiber DFB sum frequency realization | High Power Never mode-hop Excellent beam quality High frequency stability |
| 679nm |
| Ytterbium-doped fiber DFB and Thulium-doped fiber DFB sum frequency realization | High Power Never mode-hop Excellent beam quality High frequency stability |
| 707nm |
| Ytterbium-doped fiber DFB and Thulium-doped fiber DFB sum frequency realization | High Power Never mode-hop Excellent beam quality High frequency stability |
| 317nm | 0.3W-1W | Ytterbium-doped fiber DFB and erbium-doped fiber lasers generate high-power 634nm lasers, and then resonant frequency doubling generates high-power 317nm lasers | Tuning range>350GHz Long life high power |
Widely tunable lasers
In order to achieve a laser covering multiple wavelengths from the ground state to the excited state of strontium atoms, PerciLasers has launched a widely tunable laser that perfectly combines the wide tuning characteristics of external cavity semiconductor lasers and the high power characteristics of fiber amplifiers.
Real photos | wavelength | power | Solution Overview | Features |
| 317nm | 0.3W-1W | Ytterbium-doped fiber DFB and erbium-doped fiber lasers generate high-power 634nm lasers by frequency doubling, and then resonant frequency doubling generates high-power 317nm lasers. One of the seed lasers is a wide-tuned laser, which achieves ultra-wide tuning output. | Tuning range ±1nm Long life high power |
Frequency Stabilization and Other Accessories
The excitation of the Rydberg state of strontium atoms requires that the laser wavelength be accurately aligned with the transition spectrum of the atom and that the wavelength be kept stable for a long time. PerciLasers has also launched corresponding frequency stabilization and other solutions.
Real photos | wavelength | power | Solution Overview | Features |
| Hertz-level ultra-stable laser system | <0.5Hz/50Hz | Based on the PDH frequency stabilization method, the laser is locked to a high-precision and portable ultra-stable laser system to achieve the narrowing of the laser line width. | Ultra-high frequency stability · Narrow line width can be handled |
| Modulation transfer frequency stabilization system | <±100kHz@24hrs | Based on all-fiber modulation transfer frequency stabilization scheme, the laser frequency is locked to the transition spectrum of rubidium atoms | High long-term frequency stability Strong environmental adaptability |
| Saturation absorption frequency stabilization system | <±150kHz@24h | Based on the all-fiber saturation absorption frequency stabilization scheme, the laser frequency is locked to the transition spectrum of the rubidium atom | High long-term frequency stability Strong environmental adaptability |
| EIT frequency stabilization | <±800kHz@24h | The all-fiber EIT frequency stabilization scheme locks the laser frequency to the transition spectrum of the rubidium atom. | High long-term frequency stability Strong environmental adaptability |
[1] Ma, S., Liu, G., Peng, P.et al.High-fidelity gates and mid-circuit erasure conversion in an atomic qubit.Nature622, 279–284 (2023).