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845.584 nm DBR Laser Diode
The 845.584 nm Distributed Bragg Reflector (DBR) high-performance edge-emitting laser diode is based on advanced monolithic integrated single-frequency Gallium Arsenide (GaAs) laser technology.This series of laser diodes outputs single spatial mode laser beams, with passivated facet design to ensure device reliability. The 845.584 nm DBR device is applicable to atomic spectroscopy fields based on Calcium (Ca) related application scenarios. In addition, this series of devices has passed spectral certification, which can accurately match the frequency doubling of calcium atom cooling transition within the ambient range of room temperature ±10 °C.
Product features:Excellent spectral performance;High output power and outstanding operational reliability;Intelligent control and user-friendly usability
Part Number:MP-DBR-845.584-160-14BF-PA
Application area:High-end Pumping Applications | Precision Sensing & Measurement Applications
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Center Wavelength
845.584nm

Detailed parameters
845.584nm (COS) package characteristics
Chip architecture | |
Parameter 1 | High power |
Nominal wavelength (nm)2 | 845.584 ± 0.6 |
Power range (mW). | 80–240 |
Maximum operating current (CW & Pulsed) (mA). | 350 |
Optical power (mW) at maximum operating current | 240 |
Nominal Slope Efficiency (W/A). | 0.9 |
Nominal threshold current (mA). | 50 |
1. Unless otherwise stated, all parameters are measured at a junction temperature of 25°C. If used outside of these parameters, the warranty will be void
2. The sealed package may contain a chip-on-substrate (CoS) with a deviation of ±1.2 nm from the nominal value.
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 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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