828 Single-Frequency DBR Laser Diode
Description
The 828 nm DBR Laser Diode from Photodigm is a high-performance, single-frequency laser designed for precision applications such as LIDAR and water vapor sensing. Based on advanced Gallium Arsenide (GaAs) monolithic technology, this distributed Bragg reflector (DBR) laser provides a single spatial mode beam with excellent spectral purity and narrow linewidth (~500 kHz).
This high-power laser operates within an 80–180 mW range and maintains wavelength stability at 828 ± 0.6 nm. With passivated facets ensuring long-term reliability, it delivers a high side-mode suppression ratio (SMSR) of at least 40 dB, reducing unwanted optical noise. The laser’s temperature and current tuning capabilities allow for precise wavelength control with a tuning rate of 0.06 nm/°C and 0.002 nm/mA.
Available in various free-space package configurations, including Chip on Submount (CoS), TO-8, C-Mount, and TOSA, it provides integration flexibility for diverse applications. Its robust design ensures stable operation within a wide temperature range (-5°C to +70°C) and supports reliable long-term performance.
828 Single-Frequency DBR Laser Diode
Specifications |
|
|---|---|
| Center Wavelength: | 0.828 ±.0.006 um |
| Output Power: | 80-180 mW |
| Laser Forward Voltage: | 2 V |
| Operating Current, Max (CW & Pulsed): | 250 mA |
| Optical Power At Max Operating Current: | 180 mW |
| Storage Temperature: | 0 to +70 °C |
| Nominal Laser Linewidth @ LIV Current: | 500 kHz |
| Temperature Tuning Rate: | 0.06 nm/ºC |
| Polarization Extinction Ratio: | -20 dB |
| Operating Temperature (Chip): | +5 to +45 °C |
| Beam Divergence @ FWHM (θ|| X θ⊥): | 6 x 28 º |
Features
- Single-Frequency Operation: Ensures stable, narrow-linewidth output with minimal spectral drift
- High Optical Power: Operates at 80–180 mW, suitable for high-sensitivity applications
- Excellent Spectral Purity: Provides a minimum side-mode suppression ratio of 40 dB
- Precise Wavelength Control: Temperature tuning at 0.06 nm/°C and current tuning at 0.002 nm/mA
- Passivated Facets: Enhances reliability and long-term performance
- Multiple Packaging Options: Available in CoS, TO-8, C-Mount, and TOSA configurations
- Wide Operating Temperature Range: Ensures stable performance from -5°C to +70°C
Applications
- LIDAR Systems: Ideal for precise distance measurement and atmospheric sensing
- Water Vapor Sensing: Enables accurate detection in environmental and industrial applications
- Spectroscopy: Supports high-resolution spectral analysis with minimal noise
- Optical Metrology: Used in precision measurement applications requiring single-frequency stability
- Atomic and Quantum Research: Provides stable laser sources for high-precision experiments
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Ships from:
United States
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On FindLight:
since 2019
Frequently Asked Questions
It is mainly used in LIDAR and water vapor sensing due to its stable single-frequency operation.
The laser diode operates within a power range of 80 mW to 180 mW.
The wavelength shifts by approximately 0.06 nm/°C, requiring thermal management for precision.
The typical linewidth is around 500 kHz, ensuring a narrow spectral output.
It comes in multiple configurations, including Chip on Submount (CoS), TO-8, C-Mount, and TOSA.