01 / Rb Atomic Clock1
795nm VCSEL for rubidium CPT atomic clocks
795nm single-mode VCSEL bare die supports rubidium D1-line optical pumping for CPT atomic clock evaluation and compact vapor-cell timing module development.
RB D1 / CPT CLOCK / TIMING
Single-mode VCSEL sources for atomic clocks and OPM magnetometers.
Single-mode VCSEL sources for atomic clocks and OPM quantum sensing.
1ONELASER provides 795nm and 894.6nm single-mode VCSEL bare die products for rubidium and cesium vapor-cell systems, including atomic clock optical source evaluation and optically pumped magnetometer applications.
Standard products are supplied as bare die by default. For selected atomic-clock projects, TO-46 packaged VCSELs are supported. For OPM magnetometer projects, TO-46 non-magnetic package support is available according to the system requirements.
APPLICATION OVERVIEW
VCSEL wavelength matching for rubidium and cesium vapor-cell systems.
Atomic clock and quantum sensing systems require optical sources matched to alkali-metal transition lines. 795nm VCSELs support rubidium D1-line systems, while 894.6nm VCSELs support cesium D1-line systems.
For atomic clocks, 795nm VCSELs provide optical sources for Rb CPT clock development, while 894.6nm VCSELs provide optical sources for Cs atomic-clock development. For OPM magnetometers, 795nm and 894.6nm VCSELs provide pump-laser sources for Rb- and Cs-based vapor-cell systems.
APPLICATION DIRECTIONS
VCSEL optical sources for precision timing and magnetic-field sensing.
Single-mode VCSELs support compact vapor-cell systems where wavelength matching, low-current operation, polarization behavior, thermal stability and package integration are important.
View 795nm Rb Clock VCSEL
02 / Cs Atomic Clock2
894.6nm VCSEL for cesium atomic clocks
894.6nm single-mode VCSEL bare die supports cesium D1-line optical source evaluation for Cs vapor-cell atomic clocks and precision timing applications.
CS D1 / ATOMIC CLOCK / PRECISION TIMING
03 / Rb OPM3
795nm VCSEL for rubidium OPM magnetometers
795nm single-mode VCSELs provide compact pump-laser sources for rubidium-based optically pumped magnetometers and vapor-cell magnetic-sensing modules.
RB OPM / MAGNETOMETER / VAPOR CELL
04 / Cs OPM4
894.6nm VCSEL for cesium OPM magnetometers
894.6nm single-mode VCSELs provide pump-laser sources for cesium-based OPM magnetometers, supporting Cs D1-line optical pumping and magnetic-field sensing.
CS OPM / OPTICAL PUMPING / MAGNETIC SENSING
05 / Quantum Sensing5
VCSEL sources for vapor-cell quantum sensing
VCSEL optical sources can be reviewed with vapor cells, polarization optics, thermal control, magnetic shielding and photodetector circuits for compact quantum sensing modules.
QUANTUM SENSING / VAPOR CELL / OPTICAL SOURCE
06 / Custom Package6
Custom VCSEL Packaging & Integration
For projects beyond bare-die supply, we offer TO-46 and non-magnetic packaging, ceramic submounts, thermal-path design, integrated TEC, NTC or PT1000 sensing, vacuum or dry-nitrogen sealing, beam collimation, and custom assembly.
CUSTOM PACKAGE / TO-46 / NON-MAGNETIC / TEC / VACUUM / N₂
ENGINEERING REVIEW
Key VCSEL selection points for vapor-cell atomic clock and OPM systems.
Atomic clock and OPM magnetometer systems require more than a nominal wavelength match. The VCSEL should be reviewed together with the vapor cell, temperature condition, optical path, polarization control, package form and final signal response.
01
D-Line Wavelength Matching
Review the VCSEL wavelength against the target alkali-metal D-line transition, including 795nm for Rb D1 and 894.6nm for Cs D1 systems.
02
Linewidth, SMSR and PER
Spectral linewidth, single-mode suppression ratio and polarization extinction ratio are important for stable optical pumping and repeatable vapor-cell response.
03
Operating Temperature
Operating temperature, wavelength shift versus temperature and TEC-related control should be reviewed to maintain wavelength alignment under actual working conditions.
04
Optical Pumping Path
Collimation, circular polarization optics, beam alignment and vapor-cell geometry affect optical pumping efficiency, CPT signal quality and OPM magnetic-field response.
05
Packaging & Integration
Bare die is the default standard product form. TO-46 packaging is supported for atomic clocks, while TO-46 non-magnetic packaging, ceramic submounts, thermal-path design, integrated TEC, NTC or PT1000 sensing, vacuum or dry-nitrogen sealing, beam collimation, and custom assembly.
06
System-Level Validation
Final suitability should be validated under the customer’s actual optical, thermal, electrical, vapor-cell and magnetic-field sensing conditions.
EVALUATION SUPPORT
Datasheets, Evaluation Kits and Package Configuration
We support early-stage evaluation for atomic clock, OPM magnetometer and vapor-cell quantum sensing projects with product datasheets, 5-piece evaluation kits, bare die samples and application-specific packaging options.
Standard products are supplied as bare die by default. When requesting samples, please specify the required delivery form, such as bare die, standard TO packaging, non-magnetic packaging, integrated TEC, NTC or PT1000 temperature sensing, vacuum sealing or dry-nitrogen filling.
NEXT STEP
Advance your atomic clock, OPM or vapor-cell project with 795nm or 894.6nm single-mode VCSELs, evaluation kits, or custom packaging.
Share your target wavelength, optical power, linewidth, operating temperature, magnetic and temperature-control requirements. Our team will recommend the suitable device and package configuration.
795nm Rb D1-line · 894.6nm Cs D1-line · Bare die and custom package options
Single-Mode VCSELs for Atomic Clocks & OPM