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770.108nm DBR Laser Diode
The 770.108 nm DBR series high-performance edge-emitting laser diodes are developed with advanced monolithic single-frequency gallium arsenide (GaAs) laser technology. This laser series provides single spatial mode beam output and adopts facet passivation technology to ensure long-term reliability.770.108 nm DBR devices are widely applied in potassium-based atomic spectroscopy. Spectroscopic certification guarantees precise coverage of the potassium D1 transition line within a temperature range of ±10 °C relative to room temperature.
Product features:Precise wavelength locking; ultra-narrow linewidth; high side-mode suppression ratio; mode-hop-free tuning
Part Number:MP-DBR-770.108-100-14BF-PA
Application area:Quantum Technology | Precision Spectroscopy | Aerospace
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Center Wavelength
770.108nm

Model Parameters
Detailed parameters
770.108nm (COS) package characteristics
Chip architecture | |
Parameter 1 | High power |
Nominal wavelength (nm)2 | 770.108 ± 0.6 |
Power range (mW) | 40–100 |
Maximum Operating Current (CW & Pulsed) (mA) | 200 |
Optical power at maximum operating current (mW) | 100 |
Nominal Slope Efficiency (W/A) | 0.6 |
Nominal threshold current (mA) | 50 |
1. Characteristics at TC = 25 °C unless otherwise specified. Operating outside of these parameters voids warranty.
2. Hermetically sealed packages may contain CoS that are ± 1.2 nm from nominal.
Available free-space package add-ons

Laser specifications
Parameters | unit | Minimum | Typical values | Maximum |
Storage temperature | °C | 0 | - | 70 |
Shell operating temperature | °C | 5 | - | 70 |
Laser chip operating temperature ¹ | °C | 5 | - | 45 |
Laser series resistance | Ω | - | 2 | - |
Forward voltage of the laser at LIV current | V | - | 2 | - |
Nominal laser line width at LIV current | kHz | - | 500 | - |
Beam divergence angle at half-height and full width (θ|| × θ⊥) | º | - | 6 x 28 | 8 x 32 |
Edge-mode rejection ratio (SMSR) | dB | - | -40 | - |
Polarization extinction ratio | dB | -17 | -20 | - |
Polarized state of the laser | TE | |||
Pattern structure | Basic mode | |||
Temperature tuning rate | nm/°C | - | 0.06 | - |
Current tuning rate | nm/mA | - | 0.002 | - |
Laser reverse voltage | V | - | - | 0 |
If not sealed, it is not recommended to use below the dew point
Freespace Encapsulation add-on specifications
Parameters | unit | Minimum | Typical values | Maximum |
Photodiode forward current | mA | - | - | 10 |
Photodiode reverse voltage | V | - | - | 50 |
TEC Current (TOSA) | A | -1.1 | - | 1.1 |
TEC Voltage (TOSA) | V | -3.0 | - | 3.0 |
TEC current TO-8 | A | -1.8 | - | 1.8 |
TEC voltage TO-8 | V | -2.2 | - | 2.2 |
Thermistors | kΩ | - | 10 | - |
Handling Precautions
These devices are sensitive to ESD. When handling the module, grounded work area and wrist strap must be used. Always store in an antistatic container with all leads shorted togethe



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