ROITHNER RLT7870MG

RLT7870MG
TECHNICAL DATA
High Power Infrared Laser Diode
Features
•
•
•
•
Lasing Mode Structure: single transverse mode
Peak Wavelength : typ. 785 nm
Optical Ouput Power: 70 mW
Package: 5.6 mm
Electrical Connection
Pin Configuration
Bottom View
n-type
PIN
1
2
3
Function
LD Anode
LD Cathode
Absolute Maximum Ratings (TC=25°C)
Item
CW Output Power
Pulsed Output Power*
Reverse Voltage
Operating Case Temperature
Storage Temperature
Symbol
PO
PO pulse
UR
TC
Tstg
Value
70
100
2
-10 … +60
-40 … +100
Unit
mW
mW
TC
°C
°C
* duty < 50%, pulse width <0.1µs
Specifications (TC=25°C)
Item
Optical Specification
CW Output Power
Peak Wavelength
Test Conditions
Symbol
Min.
Typ.
Max.
Unit
CW, PO = 60mW
CW, PO = 60mW
FWHM Beam Divergence
CW, PO = 60mW
PO
λP
θ║
θ┴
775
7
17
785
9
20
70
798
11
24
mW
nm
deg
deg
Electrical Specification
Threshold Current
Operating Current
Slope Efficiency
Operating Voltage
CW
CW, PO = 60mW
CW, PO = 60mW
CW, PO = 60mW
Ith
Iop
η
Uop
-
40
95
1.0
1.8
50
140
2.2
mA
mA
mW/mA
V
The above specifications are for reference purpose only and subjected to change without prior notice.
21.12.2011
RLT7870MG
1 of 3
Package Dimensons
9 mm Package (Unit:mm)
21.12.2011
RLT7870MG
2 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 switching 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.
21.12.2011
RLT7870MG
3 of 3