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1550nm 450mW PM FP Laser Diode
The 1550nm single-mode laser module adopts a 14-pin butterfly package. All chips are mounted on a 2.1mm COS (Chip on Submount) inside the package, and it comes standard with a built-in thermistor, TEC, and photodiode. Our 1550nm single-mode product line is widely used in applications such as optical data storage, printing, laser ranging, illumination, defense, spectral analysis, and graphics processing.
Product features:Stable output; Low noise; Wide operating temperature range
Part Number:MP-FP-1550-450-14BF-PA
Application area:Fiber optic communication systems | Optical sensing | Laser ranging | Laboratory research | Industrial inspection equipment
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Central Wavelength Spectral Width Output Power
1540 nm – 1560 nm 3 nm – 9 nm 450mW

Detailed Parameters
Specification Table
Electrical / Optical Characteristics (Tsub = 25 °C, CW bias, unless otherwise specified)
Parameter | Symbol | Min | Typ | Max | Unit |
Central Wavelength | λ | 1540 | 1550 | 1560 | nm |
Spectral Width | Δλ | 3 | 6 | 9 | nm |
Threshold Current | Ith | — | 80 | 100 | mA |
Operating Current | Iop | — | 1650 | 2000 | mA |
Fiber Output Power | Pf | — | 450 | 500 | mW |
PD Dark Current (VRD=5V) | Id | — | — | 0.1 | μA |
Polarization Extinction Ratio (PM version) | PER | 17 | 20 | — | dB |
Coupled Fiber Type | SMF-28E/PM1550 | ||||
Forward Voltage | Vf | — | 1.8 | 2.5 | V |
Thermistor Resistance | RT | 9.5 | 10 | 10.5 | kΩ |
Thermistor Temperature Coefficient | — | — | -4.4 | — | %/°C |
Connector | FC/APC | ||||
Pin Definition:

PIN# | Function | PIN# | Function |
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
Parameter | Unit | Min | Typ | Max |
Case Temperature | °C | -5 | 25 | 70 |
Chip Temperature | °C | +10 | 25 | 40 |
Operating Current | mA | 0 | 1800 | 2500 |
Forward Voltage | V | 0.8 | 1.2 | 2.1 |
TEC Current | A | — | 1.5 | 2.0 |
Reverse Voltage (LD) | V | — | — | 2.0 |
Reverse Voltage (PD) | V | — | — | 20 |
Characteristic Curves
Spectrum Diagram:

L-I Curve:
Ordering Information:
MP-FP-□□□□-☆-A8▽-XX
□□□□: Wavelength
1091: 1091nm
1532: 1532nm
1392: 1392nm
1512: 1512nm
1567: 1567nm
*****
1653.7: 1653.7nm
1950: 1950 nm
☆: Output Power
A: 20 mW
B: 150 mW
C: 300 mW
D:400mW
▽: Wavelength Tolerance
1: ±5 nm
2: ±10 nm
XX: Fiber Type & Connector
SA = SMF-28E + FC/APC
SP = SMF-28E + FC/PC
PP = PM Fiber + FC/PC
PA = PM Fiber + FC/APC
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