795nm
795nm Single-Mode VCSEL Bare Die for Atomic Clock
795nm single-mode VCSEL bare die for rubidium D1-line atomic clock, quantum sensing, magnetometer-related optical source evaluation, and compact vapor-cell module development.
Specifications
- Product Type
- VCSEL Bare Die
- Wavelength
- 795 nm typ.
- Optical Output Power
- 0.13 mW typ.
- Transverse Mode
- Single-mode VCSEL
- Operating Mode
- CW
- Test Condition
- Ta = 70±10°C, IF = 1.6 mA, DC = 100%
- Forward Voltage
- 1.7 V typ.
- Threshold Current
- 1.0 mA typ.
- Beam Divergence
- 17° typ. at 1/e²
- Die Size
- 180±10 μm × 240±10 μm
- Recommended Assembly
- Wire bonding / ceramic submount / custom packaging
Product Overview
1. Single-Mode VCSEL Bare Die for Rubidium Atomic Clock Optical Pumping
This 795 nm single-mode GaAs VCSEL bare die is designed for rubidium D1-line optical pumping in Rb vapor-cell and CPT atomic clock systems. It supports low-current CW operation and provides a compact bare die format for engineering evaluation, vapor-cell atomic clock module development, and laboratory optical source testing.
Under the specified test conditions of Ta = 70 ± 10°C, IF = 1.6 mA, and DC = 100%, the device provides a typical peak wavelength of 795 nm, typical optical output power of 0.13 mW, minimum single-mode suppression ratio of 30 dB, minimum polarization extinction ratio of 15 dB, maximum spectral linewidth of 100 MHz, and an FM modulation bandwidth of at least 3.4 GHz.
2. Application Development Direction
This product is suitable for rubidium vapor-cell optical pumping, Rb D1-line atomic clock evaluation, CPT rubidium atomic clock development, precision timing and frequency-reference systems, laboratory optical source testing, and integration into compact vapor-cell atomic clock modules.
The FM modulation bandwidth of at least 3.4 GHz supports microwave-frequency modulation and optical sideband generation for CPT rubidium atomic clock applications. Final wavelength matching, tuning range, spectral linewidth, polarization, output power, beam profile, modulation depth, sideband characteristics, and package-level integration should be validated according to the customer’s actual vapor-cell, optical-path, temperature-control, and electronic-drive conditions.
Optional package configurations may include standard TO-can packaging, integrated TEC temperature control, NTC thermistor or PT1000 temperature sensing, vacuum-sealed packaging, and dry-nitrogen-filled packaging. The final package configuration and preparation time should be confirmed according to the specific project requirements.
3. Evaluation Sample and Documentation Support
Evaluation sample availability and quantity may vary depending on product configuration, packaging requirements, project requirements, and inventory status. Please contact us to confirm sample availability, sample quantity, pricing, package configuration, delivery time, and international express shipping costs for this 795 nm single-mode VCSEL.
Available technical documentation may include the product datasheet, LIV characteristics, die dimensional drawing, electrical and optical test information, and material compliance documentation, including RoHS, REACH, and halogen-free documentation, upon request.
System-level CE, EMC, EN 60825 laser safety, LVD, and other regulatory compliance requirements should be evaluated according to the customer’s final product design and intended application.
Please contact us for sample testing, engineering evaluation, temperature-controlled packaging, or customized rubidium atomic clock optical source support.
