SPL785-20-4-PD
TECHNICAL DATA
Pigtailed Coaxial Laser Diode
Features
•
•
•
•
785 nm
SM Fiber
Coaxial package
Built-in PD
Applications
•
•
Medical laser treatment
Printing
Electrical Connection
Pin Configuration
p-type
PIN
1
2
3
Function
LD Anode
LD Cathode, PD Anode
PD Cathode
Bottom View
Specifications (25°C)
Type
Optical Specification
Output Power P
F
Center Wavelength
λ
C
Spectral Width
Δλ
Fiber Characteristics
Fiber Core Size
Fiber Length
Connector
Electrical Specification
Slope Efficiency E
S
Threshold Current I
th
Operation Current I
O
Operation Voltage V
f
Monitor Current I
m
PD Reverse Voltage
Package Style
Absolute Maximum Ratings
Reverse Voltage V
r
Operating Temperature T
Op
Storage Temperature T
stg
Lead Soldering Temperature (10 sec.)
Min.
-
775
-
-
-
Typ.
20
785
-
4
0.8
FC/ST/SMA-905
1.1
35
115
2.0
0.5
30
Coaxial
2.0
-10 … +50
-40 … +85
260
Max.
30
795
-
-
1.0
Unit
mW
nm
nm
µm
m
-
-
-
-
-
-
-
-
-
-
-
-
mW/mA
mA
mA
V
mA
V
V
°C
°C
°C
The above specifications are for reference purpose only and subjected to change without prior notice.
19.04.2011
SPL785-20-4-PD
1 of 3
Safety of Laser light
•
Laser Light can damage the human eyes and skin. Do not expose the
eye or skin directly to any laser light and/or through optical lens. When
handling the LDs, wear appropriate safety glasses to prevent laser
light, even any reflections from entering to the eye. Focused laser
beam through optical instruments will increase the chance of eye
hazard.
These LDs are emitting invisible light.
•
Cautions
1. Operating methode
•
This LD shall change its forward voltage requirement and optical ouput power according to
temperature change. Also, the LD will require more operation current to maintain same ouput
power as it degrades. In order to maintain output power, use of APC (Automatic Power
Control) is recommended. Which use monitor feedback to adjust the operation current.
•
Confirm that electrical spike current generated by swithing on and off does not exceed the
maximum operating current level specified herein above as absolute maximum rating. Also,
employ appropriat countermeasures to reduce chattering and/or overshooting in the circuit.
2. Static Electricity
•
Static electricity or electrical surges will reduce and degrade the reliability of the LDs. It is
recommended to use a wrist trap or anti-electrostatic glove when handeling the product.
3. Absolute Maximum Rating
•
Active layer of LDs shall have high current density and generate high electric field during its
operation. In order to prevent excessive damage, the LD must be operated striclty below
absolute maximum rating.
19.04.2011
SPL785-20-4-PD
3 of 3
Embedded System
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