The PL-DFB-850-A-A81 850nm DFB laser diode module made by LD-PD is a cost effective, highly coherent laser source. The DFB laser diode chip is packaged in an industry standard hermetically sealed 14 pin butterfly package with TEC and PD Built in.We special design the area only work in room Temperature. Our diode has good performance from 20-30℃.
Name | Model | Description | Parameter | Price |
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● Narrow Linewidth < 2MHz
● Excellent wavelength control and stability
● Industry Standard 14 pin Butterfly package
● Mode-Hop free tuning
● Excellant reliability
● Customer specific wavelengths available
Tsub=25°C, CW bias unless stated otherwise
Parameter | Symbol | Min | Typ | Max | Unit |
Centre Wavelength | λ | 849.5 | 850.0 | 850.5 | nm |
Side Mode Suppression Ratio | SMSR | 30 | 40 | dB | |
Threshold Current | Ith | 20 | 30 | mA | |
Operating Current | Iop | 80 | 120 | mA | |
Chip output Power | Pf | 10 | 20 | 30 | mW |
Quantum Efficiency | η | 0.08 | 0.12 | mW/mA | |
Current Tuning Coefficient | ∆λ/∆I | 0.015 | nm/mA | ||
Temperature Tuning Coefficient | ∆λ/∆T | 0.12 | nm/K | ||
Forward Voltage | Vf | 1.3 | 2 | V | |
Thermistor Resistance | RT | 9.5 | 10 | 10.5 | KΩ |
Thermistor Temp. Coefficient | -4.4 | %/°C | |||
Connector | FC/APC |
Spectrum
L-I Curve
Tuning characteristics
DFB Linewidth Testing Result
Beam Quality
2D
3D
1 | Thermoelectric Cooler (+) | 8 | N/C |
2 | Thermistor | 9 | N/C |
3 | PD Monitor Anode (-) | 10 | Laser Anode (+) |
4 | PD Monitor Cathode (+) | 11 | Laser Cathode (–) |
5 | Thermistor | 12 | N/C |
6 | N/C | 13 | Case Ground |
7 | N/C | 14 | Thermoelectric Cooler (–) |
Absolute Maximum Ratings
Item | Unit | Min | Typ | Max |
Case Temperature | ℃ | -5 | 25 | 70 |
Chip Temperature | ℃ | +10 | 25 | 40 |
Operating Current | mA | 0 | 180 | 250 |
Forward Voltage | V | 0.8 | 1.2 | 2.1 |
TEC Current | A | - | 1.2 | 1.2 |
Reverse Voltage(LD) | V | - | - | 2.0 |
Reverse Voltage(PD) | V | - | - | 20 |
● Tunable diode laser absorption spectroscopy
● Seed laser
● Fiber laser
PL-DFB-□□□□-☆-A8▽-XX
□□□□: Wavelength
850: 850nm
1392: 1392nm
1512: 1512nm
1567: 1567nm
*****
1653.7: 1653.7nm
☆ : Output Power
A: 20mW
B: 50mW
▽: Wavelength Tolerance
1: ±1nm
2: ±2nm
XX: Fiber and Connector Type
SA=HI780+ FC/APC
SP=HI780+ FC/PC
PA=PM980 Fiber+ FC/APC
PP=PM980 Fiber+ FC/PC