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Roithner

DFB-2004-3 Datasheet Preview

DFB-2004-3 Datasheet

DFB laser diodes

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DFB-2004-3
Description
2.0 μm DFB laser diodes (in the following a 2004nm device is exemplary presented) show
unique device performance to meet the requirements of our customers.
Their high side mode suppression ratio (SMSR) and high spectral purity make them
perfectly suited for applications like e.g. CO2 spectroscopy. Mode-hop free DFB emission
with a high side mode suppression ratio (SMSR) around 35dB is guaranteed for the
device in the entire specified temperature and current range of operation.
Spectrum
Fig. 1:Spectrum of a 2004nm DFB Laser diode.
Applications
trace gas sensing of CO2
10.08.2010
dfb_2004_3.doc
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Roithner

DFB-2004-3 Datasheet Preview

DFB-2004-3 Datasheet

DFB laser diodes

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Absolute Maximum Ratings
Parameter
LD forward current
LD reverse voltage
Operating temperature
Storage temperature
Symbol
If
Ur
Top
Tstore
Unit
mA
V
°C
°C
Electrical/Optical Characteristics
Parameter
Wavelength
Symbol Unit
λ nm
Side mode supression
dB
Optical output power
Forward current
Threshold current
Beam divergence parallel
Popt mW
If mA
Ith mA
deg.
Beam divergence perpendicular
deg.
Slope efficiency
e mW/mA
Current tuning rate
Temperature tuning rate
CI nm/mA
CT nm/K
min
2003
32
40
20
25
45
0.08
0.01
0.18
Rating
100
1.5
-20 … 50
-20 … 85
typical
2004
35
3
50
25
30
50
0.12
0.02
0.2
max
2005
40
100
50
35
60
0.15
0.03
0.22
10.08.2010
dfb_2004_3.doc
2 of 3


Part Number DFB-2004-3
Description DFB laser diodes
Maker Roithner
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DFB-2004-3 Datasheet PDF






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