920 Single-Frequency DBR Laser Diode
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 |
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|---|---|
| Center Wavelength: | 0.920 ±.0.006 um |
| Output Power: | 80-240 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 |
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
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Ships from:
United States
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On FindLight:
since 2019
Frequently Asked Questions
The 920 nm DBR Laser Diode is ideal for atomic spectroscopy (particularly strontium-based applications) and two-photon microscopy. It is also used in quantum research, scientific instrumentation, and precision measurements where stable and tunable laser output is required.
The 920 nm DBR Laser Diode has a power range of 80 to 240 mW, providing flexibility for a variety of high-performance applications. The maximum optical power is achieved at a 400 mA operating current.
The laser is built with monolithic single-frequency Gallium Arsenide (GaAs) technology, providing a single spatial mode beam with passivated facets for enhanced reliability. Additionally, the device has a polarization extinction ratio of -20 dB and is available with Mode-Hop Free (MHF) add-ons for optimized beam performance.
The nominal wavelength of the 920 nm DBR Laser Diode is 920 ± 0.6 nm. This tolerance ensures stable operation for precise wavelength-sensitive applications.
The 920 nm DBR Laser Diode can operate in a temperature range of 5°C to 70°C at the case, and the laser chip operates between 5°C and 45°C. It is important to ensure that the laser is operated within these temperature limits for optimal performance and longevity.