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866.214nm DBR Laser Diode
The 866.214nm DBR series high-performance edge-emitting laser diodes are based on advanced monolithic single-frequency gallium arsenide (GaAs) laser technology. These lasers provide single spatial mode beam output and employ facet passivation technology to ensure reliability. The 866.214nm DBR series devices are widely used in calcium ion-based atomic spectroscopy applications. The 866.214nm DBR series is spectroscopically certified to precisely cover the calcium ion cooling transition frequency within an ambient temperature range of ±10°C around room temperature.
Product features:Monolithically integrated DBR structure;cavity facet passivation;high-reliability design;ESD-sensitive device
Part Number:MP-DBR-866.214-240-14BF-PA
Application area:Quantum Technology | Atomic Physics | Precision Spectroscopy
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Center Wavelength
866.214nm

Model Parameters
Detailed parameters

866.214nm (COS) package characteristics
Chip architecture | |
Parameter 1 | High power |
Nominal wavelength (nm)2 | 866.214 ± 0.6 |
Power range (mW) | 80–240 |
Maximum Operating Current (CW & Pulsed) (mA) | 350 |
Optical power at maximum operating current (mW) | 240 |
Nominal Slope Efficiency (W/A) | 0.9 |
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 together.



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