Description
The 920 nm DBR Laser Diode from Photodigm is a high-performance edge-emitting laser designed for precision applications in atomic spectroscopy and two-photon microscopy. This advanced laser is built on monolithic single-frequency Gallium Arsenide (GaAs) technology, delivering a stable single spatial mode beam with passivated facets for enhanced reliability and performance. The 920 nm wavelength is ideal for strontium-based (Sr) applications, including atomic spectroscopy, and offers high power output ranging from 80–240 mW.
This laser diode is capable of providing a nominal output power of 240 mW at a maximum operating current of 400 mA, with a typical slope efficiency of 0.75 W/A. Its polarization extinction ratio of -20 dB ensures high precision in sensitive optical measurements. The device is suitable for precision scientific research and features reliable temperature tuning and current tuning capabilities. For additional flexibility, free-space package add-ons such as Mode-Hop Free (MHF) and Virtual Point Source (VPS) lenses are available to further optimize beam performance.
920 Single-Frequency DBR Laser Diode
Specifications
| Center Wavelength: | 0.92 um |
|---|---|
| Output Power: | 80 mW |
| Operating Current, Max (CW & Pulsed): | 400 mA |
| Optical Power At Max Operating Current: | 240 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 |
| Laser Forward Voltage: | 2 V |
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Features
- Wavelength: Nominal 920 nm ± 0.6 nm, ideal for strontium-based atomic spectroscopy and microscopy
- Power Range: 80–240 mW, with a maximum operating current of 400 mA
- Slope Efficiency: 0.75 W/A, providing efficient conversion of current to optical power
- Threshold Current: 60 mA, ensuring low start-up current for reliable operation
- Linewidth: Nominal linewidth of 500 kHz, minimizing spectral broadening
- Beam Divergence: 6° x 28° at full width half maximum (FWHM)
- Polarization Extinction Ratio: -20 dB, ensuring high-quality polarization control
- Available Add-ons: Mode-Hop Free (MHF) and Virtual Point Source (VPS) lens for optimized beam quality
Applications
- Atomic Spectroscopy: Ideal for strontium-based (Sr) spectroscopy, delivering precise wavelength control for accurate measurements
- Two-Photon Microscopy: Essential for high-resolution imaging applications, providing stable and high-power output for microscopy systems
- Quantum Research: Suitable for advanced quantum experiments requiring reliable and tunable laser sources
- Precision Measurement: Used in laboratory environments where accurate wavelength, power, and polarization are critical
- Scientific Instrumentation: A key component in instruments requiring high-performance single-frequency lasers for various analytical tasks
Frequently Asked Questions
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