The PL-DFB-935-B-A81 935nm DFB laser diode module made by LD-PD is a cost effec-tive, highly coherent laser source. The DFB laser diode chip is packaged in an indus-try standard hermetically sealed 14 pin butterfly package with TEC and PD Built in.
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
Electrical/Optical Characteristics(Tsub=25°C, CW bias unless stated otherwise)
Parameter | Symbol | Min | Typ | Max | Unit |
Centre Wavelength | λ | 934 | 935 | 936 | nm |
Side Mode Suppression Ratio | SMSR | 30 | 40 | dB | |
Threshold Current | Ith | 20 | 30 | mA | |
Operating Current | Iop | 120 | 150 | mA | |
Chip output Power | Pf | 20 | 30 | mW | |
Quantum Efficiency | η | 0.08 | 0.15 | 0.2 | mW/mA |
Current Tuning Coefficient | ∆λ/∆I | 0.005 | nm/mA | ||
Temperature Tuning Coefficient | ∆λ/∆T | 0.09 | 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
Tuning Characteristics
DFB Linewidth Testing Result
L-I Curve
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 | 120 | 150 |
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
972.4: 972.4nm
1030: 1030nm
1532: 1532nm
1392: 1392nm
1512: 1512nm
1567: 1567nm
*****
1653.7: 1653.7nm
☆ : Output Power
A: 20-30mW
B: 40-60mW
▽: Wavelength Tolerance
1: ±1nm
2: ±2nm
XX: Fiber and Connector Type
SA=HI1060+ FC/APC
SP=HI1060+ FC/PC
PA=PM980 Fiber+ FC/APC
PP=PM980 Fiber+ FC/PC