C+L Band DWDM DFB(Distributed feedback type) semiconductor laser is a 14PIN butterfly package, with built-in TEC, lens, thermistor and PD integrated in the 14PIN butterfly package. The airtight design meets the requirements of telecommunications grade work. It has the characteristics of narrow line width and high power (20mW). It supports pigtail PM1550 or SMF-28E device output, and also supports customer-specified pin definition customization.
Tsub=25°C, CW bias unless stated otherwise
Optical Electrical Characteristics (TCHIP = 15 - 35 °C, TCASE = 25 °C, Iop = 150 mA)
Parameters | Min | Typ. | Max | Unit |
Central wavelength | 1530 | 1550 | 1610 | nm |
Side Mode Suppression Ratio（SMSR） | 40 | 50 | - | dB |
Linewidth*1 | - | 3 | - | MHz |
Power In fiber | 10 | 20 | - | mW |
Forward Voltage | - | 2.0 | 2.5 | V |
Forward Current | - | 120 | 150 | mA |
Mode hope free tuning current | 20 | 50 | - | mA |
Threshold Current | - | 15 | - | mA |
Quantum Efficiency | - | 0.25 | - | W/A |
Current Tuning Coefficient | - | 0.002 | - | nm/mA |
Temperature Tuning Coefficient | - | 0.08 | - | nm/°C |
MPD Responsivity | - | 0.5 | - | A/W |
PER(PM Version) | - | 18 | - | dB |
*1 reference below linewidth testing value.
Pigtail parameters
Fiber Type | SM15-PS-U25D |
Mode Field Diametera | 10.5 ± 0.5 µm @ 1550nm |
Numerical Aperture | 0.12 |
Fiber Length | 1.0m |
Connector | FC/APC (2.0 mm Narrow Key) |
Jacket | Ø900 µm |
Maximum rating values
Parameters | Typical value | unit |
Power in fiber | 10 | mW |
Max Driving Current | 150 | mA |
LD Reverse Voltage | 2 | V |
PD Reverse Voltage | 15 | V |
Operation case temp | 0 to 50 | °C |
Storage Temp | -10 to 65 | °C |
TEC Current | 2.5 | A |
TEC Voltage | 4.0 | V |
Thermistor Resitance value | 10 | kohms |
OSA Analyse
Wavelength Stability test curve(0.34931pm≈43，5MHZ)
DFB Linewidth Testing Result(50KM Delay）
L-I-V Curve
Wavelength tuning ability(Eg:1531nm DFB LASER DIODE)
PER Value testing（PM Version）
Mode hope tuning Range
