The PL-FP-840-1-A81 -SA High brightness, high quality, and high reliability are the foundation of our single mode product line.LD-PD’s 840nm single mode laser modules are available with up to 70mW of continuous output power from a 14-pin butterfly packaged fiber. All chips are mounted on a 2.1mm COS within the package and come standard with an internal thermistor, TEC, and photodiode. LD-PD’s trademark laser chip design offers un-measurable degradation and long lifetimes that make our chips among the most reliable in the industry today. Our 840nm single mode line serves a broad range of applications including optical data storage, printing, laser ranging, illumination, defense, spectral analysis, and graphics.
Product model
| 840nm FP PM 14-Pin Butterfly Module Laser Diode |
PL-FP-840-1-A81-PA | Central wavelength 840nm, Output Power 30mW, Spectral Width 0.5nm, Tolerance ±1nm, with TEC, PM850, FC/APC | Central wavelength: 840nm Output power: 30mW Spectral Width: 0.5 nm |
| 840nm FP SM 14-Pin Butterfly Module Laser Diode |
PL-FP-840-1-A81-SA | Central wavelength 840nm, Output Power 30mW, Spectral Width 0.5nm, Tolerance ±1nm, with TEC, HI780, FC/APC | Central wavelength: 840nm Output power: 30mW Spectral Width: 0.5 nm |
Parameter
Features
● Optical output: 70mW
● FC-APC connector
● Efficient coupling into single mode fiber
● 14-pin butterfly package
● CW or pulsed operation
● Internal monitor PD and TEC
● SM or PM Fiber (ø0.9mm)
Laser Specifications
Electrical/Optical Characteristics (Tsub=25°C, CW bias unless stated otherwise)
Parameter | Symbol | Min | Typ | Max | Unit |
Centre Wavelength | λ | 835 | 840 | 845 | nm |
Spectral Width | Δλ | 0.1 | 0.5 | 2.0 | nm |
Threshold Current | Ith |
| 20 | 30 | mA |
Operating Current | Iop |
| 130 | 160 | mA |
Fiber output Power | Pf | 60 | 70 | 80 | mW |
PD Dark Current (VRD=5V) | Id |
|
| 0.1 | uA |
Extinction Ratio(PM VERSION) | PER | 17 | 20 |
| dB |
Coupled Fiber Type | HI780 |
Forward Voltage | Vf |
| 1.8 | 2.5 | V |
Thermistor Resistance | RT | 9.5 | 10 | 10.5 | KΩ |
Thermistor Temp. Coefficient |
|
| -4.4 |
| %/°C |
Connector | FC/APC |
Spectrum

L-I Curve

Package Size
Unit(mm)

Pin definition

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 | 160 |
Forward Voltage | V | 0.8 | 1.2 | 1.8 |
TEC Current | A | - | 1.2 | 1.4 |
Reverse Voltage(LD) | V | - | - | 1.8 |
Reverse Voltage(PD) | V | - | - | 10 |
Application
● Printing
● Optical Data Storage
● Spectral Analysis
● Graphics
● Laser Ranging
● Illumination
● Defense
Ordering Info
PL-FP-□□□□-☆-A8▽-XX
□□□□: Wavelength
405: 405nm
633: 633nm
680: 680nm
850: 850nm
*****
1550: 1550nm
☆: Output Power
1: 30mW
2: 70mW
▽: Wavelength Tolerance
1: ±1nm
2: ±2nm
XX: Fiber and Connector Type
SA=SMF-28E+ FC/APC
SP=SMF-28E+ FC/PC
PP=PM Fiber+ FC/PC
PA=PM Fiber+ FC/APC
Product model
PL-FP-840-1-A81-PACentral wavelength: 840nm
Output power: 30mW
Spectral Width: 0.5 nm
PL-FP-840-1-A81-SACentral wavelength: 840nm
Output power: 30mW
Spectral Width: 0.5 nm
Parameter
● Optical output: 70mW
● FC-APC connector
● Efficient coupling into single mode fiber
● 14-pin butterfly package
● CW or pulsed operation
● Internal monitor PD and TEC
● SM or PM Fiber (ø0.9mm)
Electrical/Optical Characteristics (Tsub=25°C, CW bias unless stated otherwise)
Parameter
Symbol
Min
Typ
Max
Unit
Centre Wavelength
λ
835
840
845
nm
Spectral Width
Δλ
0.1
0.5
2.0
nm
Threshold Current
Ith
20
30
mA
Operating Current
Iop
130
160
mA
Fiber output Power
Pf
60
70
80
mW
PD Dark Current (VRD=5V)
Id
0.1
uA
Extinction Ratio(PM VERSION)
PER
17
20
dB
Coupled Fiber Type
HI780
Forward Voltage
Vf
1.8
2.5
V
Thermistor Resistance
RT
9.5
10
10.5
KΩ
Thermistor Temp. Coefficient
-4.4
%/°C
Connector
FC/APC
Spectrum
L-I Curve
Unit(mm)
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
160
Forward Voltage
V
0.8
1.2
1.8
TEC Current
A
-
1.2
1.4
Reverse Voltage(LD)
V
-
-
1.8
Reverse Voltage(PD)
V
-
-
10
● Printing
● Optical Data Storage
● Spectral Analysis
● Graphics
● Laser Ranging
● Illumination
● Defense
PL-FP-□□□□-☆-A8▽-XX
□□□□: Wavelength
405: 405nm
633: 633nm
680: 680nm
850: 850nm
*****
1550: 1550nm
☆: Output Power
1: 30mW
2: 70mW
▽: Wavelength Tolerance
1: ±1nm
2: ±2nm
XX: Fiber and Connector Type
SA=SMF-28E+ FC/APC
SP=SMF-28E+ FC/PC
PP=PM Fiber+ FC/PC
PA=PM Fiber+ FC/APC