795nm
795nm Single-mode VCSEL Bare Die for Rb OPM Magnetometer
795nm single-mode VCSEL bare die for compact Rb OPM magnetometers and rubidium vapor-cell magnetic sensing, with 0.7mW output and ≤30MHz linewidth.
Specifications
- Product Type
- Single-mode VCSEL Bare Die
- Wavelength
- 795nm typ. / 794.5nm – 795.5nm
- Optical Output Power
- 0.7mW typ. @ Ta=70 °C, IF=2mA, DC=100%
- Operating Mode
- CW / DC=100%
- SMSR / PER
- ≥35dB / ≥20dB
- Spectral Linewidth
- ≤30MHz
- Field of View
- D86 16° typ.
1. 795nm Single-mode VCSEL Bare Die for Rb OPM Magnetometer
The 795nm Single-mode VCSEL Bare Die is designed for rubidium D1-line optical pumping in Rb optically pumped magnetometer and vapor-cell magnetic sensing systems.
This product is supplied as a bare die for compact vapor-cell magnetometer integration, quantum sensing optical-source evaluation and laboratory optical-source testing for OPM systems. It is intended for engineering teams that require a low-current, single-mode 795nm VCSEL source for rubidium-based magnetic sensing development.
The device provides a typical 795nm peak wavelength, 0.7mW typical optical output power, narrow spectral linewidth, high single-mode suppression ratio and defined polarization performance for Rb OPM magnetometer applications.
Lead Time: In-stock products are dispatched within 3 business days; custom-packaged products have a lead time of 15–20 days.
MOQ: The minimum order quantity is 1 reel; selected special models support small-batch orders.
2. Single-mode Optical Characteristics for Rubidium OPM Systems
The 795nm wavelength corresponds to rubidium D1-line optical pumping and can be used as an optical source for Rb vapor-cell magnetic sensing and optically pumped magnetometer development.
In an Rb OPM system, the VCSEL wavelength, linewidth, polarization state, optical output power, vapor-cell temperature, circular polarization optics, magnetic shielding, detector response and final magnetic-field signal behavior should be validated together at the system level.
Parameter | Value | Condition |
|---|---|---|
Peak Wavelength | 795nm typ. / 794.5nm – 795.5nm | Ta=70 °C, IF=2mA, DC=100% |
Optical Output Power | 0.7mW typ. | Ta=70 °C, IF=2mA, DC=100% |
Threshold Current | 0.4mA typ. | According to datasheet condition |
Forward Voltage | 1.9V typ. | According to datasheet condition |
SMSR | ≥35dB | Single-mode operation |
PER | ≥20dB | Defined polarization output |
Spectral Linewidth | ≤30MHz | Standard specification |
Field of View | D86 16° typ. | According to datasheet condition |
Wavelength Shift vs. Temperature | 0.06nm/K typ. | According to datasheet condition |
Wavelength Shift vs. Current | 0.38nm/mA typ. | According to datasheet condition |
Die Thickness | 150μm | Bare die format |
This product is suitable for:
- Rubidium-based optically pumped magnetometers
- Rb vapor-cell magnetic sensing evaluation
- Rubidium D1-line optical pumping
- Compact vapor-cell magnetometer module development
- Quantum sensing optical-source evaluation
- Laboratory optical-source testing for OPM systems
Final suitability should be verified according to optical power, wavelength matching, linewidth, polarization optics, vapor-cell condition, magnetic shielding, detector response, thermal design and the complete customer system.
3. OPM Integration and Magnetic-Environment Considerations
Bare Die Supply for Vapor-Cell Magnetometer Integration
The standard supply form for this product page is bare die. Bare die supply is suitable for customers who need compact magnetometer module integration, direct optical alignment, chip-level thermal design or custom packaging for vapor-cell magnetic sensing systems.
Bare die integration should be handled in an ESD-controlled process. Customers should verify die bonding, wire bonding, current control, thermal path, optical alignment and magnetic-environment compatibility in the final OPM system.
Optional Non-Magnetic Packaged Evaluation Configuration
For OPM projects that require a packaged optical source, optional non-magnetic packaged evaluation configurations are available upon request.
These configurations are project-specific and should not be treated as the standard supply form of this page. Package structure, material selection, pin definition, optical geometry, temperature sensor, sealing method and preparation time should be confirmed separately according to the customer’s OPM system requirement.
This page does not define a standard residual-magnetism specification or a guaranteed magnetic-field compatibility level. For high-sensitivity OPM systems, package suitability should be reviewed together with the customer’s magnetic shielding, laser-source location, optical coupling path and system-level magnetic-noise requirements.
TEC, Temperature Sensor and Sealing Options
Temperature control is important for rubidium D1-line wavelength matching. For packaged project configurations, TEC / Peltier control and temperature-sensor selection may be reviewed according to the required wavelength setpoint, optical layout and module structure.
NTC and PT1000 temperature-sensing options, vacuum-sealed packages and dry-nitrogen-filled packages are available for project-specific integration. Final configuration should be confirmed before production.
4. Paid Evaluation Samples and Project Support
Paid evaluation samples are available for early-stage wavelength, linewidth, optical-power, polarization and vapor-cell magnetic sensing validation. The standard evaluation quantity is 5 pcs per set. An Evaluation Kit with 10 pcs / KIT is available for project-specific verification, driver testing, thermal review, optical alignment and initial module integration.
Samples & Pilot Production: Evaluation kits, low-volume pilot production, and pre-production validation are supported.
Evaluation support can help customers verify:
- 795nm wavelength matching
- Rubidium D1-line optical-source behavior
- Optical output power
- Linewidth and single-mode performance
- Polarization performance
- Temperature-control requirements
- Bare die integration or package-configuration direction
- Vapor-cell magnetic sensing system compatibility
For project-specific wavelength binning, package configuration, non-magnetic evaluation packaging, TEC integration, temperature sensing or vapor-cell magnetometer module adaptation, submit the application information and target operating conditions for engineering review.
For applicable products, CE, EMC, EN 60825, LVD, RoHS, REACH and halogen-free certification and compliance documents are available. Documentation depends on the corresponding product model and does not represent certification of the customer's finished device.
For rubidium atomic clock and CPT atomic clock projects, review the related page:
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5. Frequently Asked Questions
FAQ 1. Is this 795nm VCSEL designed for Rb OPM magnetometer applications?
Yes. This 795nm Single-mode VCSEL Bare Die is designed for rubidium D1-line optical pumping in Rb optically pumped magnetometer and vapor-cell magnetic sensing systems.
The device should be validated together with the customer’s vapor cell, polarization optics, temperature-control design, magnetic shielding, detector response and final magnetic-field signal behavior.
FAQ 2. Is this product supplied as bare die or packaged VCSEL?
This product page refers to bare die supply as the standard form.
Optional non-magnetic packaged evaluation configurations, TO-can packaging, TEC / Peltier integration, NTC or PT1000 temperature sensing, vacuum sealing, dry-nitrogen filling, ceramic submounts and collimating lenses are available as project-specific configurations. These package options are not treated as the default configuration of this page.
FAQ 3. Does this page define a standard non-magnetic OPM package?
No. This page does not define a standard non-magnetic OPM package, residual-magnetism specification or guaranteed magnetic-field compatibility level.
For OPM systems, package suitability should be reviewed according to the customer’s magnetic shielding, optical coupling method, laser-source position, package material requirement and magnetic-noise budget.