828 Single-Frequency DBR Laser Diode

Name: 828 Single-Frequency DBR Laser Diode
Brand: Photodigm Inc.
Availability: InStock

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.

Specifications

Center Wavelength:	0.828 um
Output Power:	80 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

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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