770.108 Single-Frequency DBR Laser Diode
Description
The Photodigm 770.108 nm DBR Laser Diode is a high-performance, single-frequency laser designed for precision atomic spectroscopy applications, particularly potassium (K) D1 transition experiments. Built on Photodigm’s advanced monolithic Gallium Arsenide (GaAs) platform, this distributed Bragg reflector (DBR) laser delivers a single spatial mode beam with exceptional wavelength stability.
With a narrow linewidth of 500 kHz, a side mode suppression ratio (SMSR) of >40 dB, and a passivated facet structure for long-term reliability, it ensures high spectral purity and operational stability. The 770.108 nm Series DBR lasers are Spectroscopy Certified, guaranteeing accurate wavelength alignment with potassium transitions within ±10°C from room temperature.
This laser is available in Chip on Submount (CoS), TO-8, C-Mount, and Transmitter Optical Subassembly (TOSA) configurations, with optional Mode-Hop Free (MHF) and Virtual Point Source (VPS) lensing for enhanced beam control.
770.108 Single-Frequency DBR Laser Diode
Specifications |
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|---|---|
| Center Wavelength: | 0.770 ± .0.006 um |
| Output Power: | 40-100 mW |
| Operating Current, Max (CW & Pulsed): | 200 mA |
| Optical Power At Max Operating Current: | 100 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 |
| Laser Forward Voltage: | 2 V |
| Beam Divergence @ FWHM (θ|| X θ⊥): | 6 x 28 º |
Features
- Single-Frequency Operation: Provides a stable, narrow-linewidth output with minimal mode hopping
- High Spectral Purity: Side mode suppression ratio (SMSR) of >40 dB ensures precise frequency selection
- Optimized for Potassium Spectroscopy: Wavelength aligned to the K D1 transition at 770.108 nm (±0.6 nm)
- Narrow Linewidth: 500 kHz linewidth for high-resolution spectroscopy and sensing.
- High Output Power: Power range from 40 mW to 100 mW with a slope efficiency of 0.6 W/A
- Temperature and Current Tuning: Tuning coefficients of 0.06 nm/°C (temperature) and 0.002 nm/mA (current) for precise wavelength control
- Multiple Packaging Options: Available in CoS, TO-8, C-Mount, and TOSA configurations for flexible integration
- Passivated Facets for Longevity: Enhanced reliability with reduced facet degradation over time
- Electrostatic Discharge (ESD) Protection: Requires proper handling with anti-static precautions
Applications
- Atomic Spectroscopy: Precision spectroscopy for potassium (K) D1 transitions
- Quantum Optics: Used in quantum communication, computing, and atomic cooling applications
- Raman Spectroscopy: Ideal for high-resolution Raman analysis in scientific research
- Optical Metrology: Suitable for precision measurement applications requiring stable laser sources
- Cold Atom Experiments: Used in trapping and cooling of potassium atoms in quantum physics research
For pricing, technical or any other questions please contact the supplier
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Ships from:
United States
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On FindLight:
since 2019
Frequently Asked Questions
This laser is specifically designed for atomic spectroscopy applications, particularly for potassium (K) D1 transition experiments. It is also used in quantum optics, Raman spectroscopy, and optical metrology.
The laser has a narrow linewidth of 500 kHz, ensuring high-resolution performance for precision spectroscopy applications.
Yes, it operates in a single-frequency mode with minimal mode hopping, making it ideal for spectroscopy and quantum applications.
The SMSR is greater than 40 dB, ensuring high spectral purity by suppressing unwanted side modes.
The laser is available in power ranges from 40 mW to 100 mW, with a typical slope efficiency of 0.6 W/A.