Broad Gain Illuminators are Fabry-Pérot lasers designed for maximum width of the gain profile. They can be used as broad spectrum illuminators for spectroscopy or imaging. Combined with an anti-reflection coating,they are suitable for use in an external cavity to obtain a tunable laser with wide tuning range.
Key Features
• Large Spectral Width
• Gapless coverage
• High radiance
• Smooth spectrum possible through dithering
Key Applications
• Mid-IR Illumination
• Globar replacement
• Imaging
Specifications
|
LASER TYPE
|
LASER NAME
|
TYPICAL SPECTRAL RANGE
|
POWER
|
|
Pulsed
|
BG-5.5-6.2
|
1670 – 1780 cm-1
|
>50 mW
|
|
Pulsed
|
BG-6.2-7.4
|
1380 – 1600 cm-1
|
>30 mW
|
|
Pulsed
|
BG-7.4-9.7
|
1090 – 1280 cm-1
|
>80 mW
|
|
Pulsed
|
BG-9.7-13.1
|
800 – 980 cm-1
|
>5 mW
|
|
Pulsed
|
P-FP-6.3
|
1560 – 1620 cm-1
|
>50 mW
|
|
CW
|
BG-CW-5.9-6.2
|
1640 – 1700 cm-1
|
>100 mW
|
|
CW
|
FP-CW-6.3
|
1530 – 1585 cm-1
|
>100 mW
|
Broadgain Illuminators are available in the well-defined bands defined here. Test data is shown for operation as an illuminator devices;refer to the external cavity brochure for EC operation test data for these same chips.
This figure shows a sample spectrum from the BG-6.2-7.4 series which shows the dense coverage that can be reached with these lasers.The different colours correspond to different temperatures of operation. The laser is pulsed in this setup. The narrow dips correspond to narrow water absorption lines in the beam path.
Specifications
|
PARAMETER NAME
|
VALUE TYPICAL
|
MINIMUM VALUE
|
MAXIMUM VALUE
|
UNIT
|
NOTE
|
|
Spectral Width
|
55
|
200
|
300
|
cm-1
|
Depends on model chosen
|
|
Average Power
|
5
|
50
|
100
|
mW
|
Depends on model chosen
|
|
Output Spectrum
|
|
MM
|
|
|
Multimode spectrum
|
|
Duty cycle
|
0
|
20
|
100
|
%
|
Only certain models can reach CW operation
|
|
Beam Divergence
|
-
|
-
|
6
|
mrad
|
Is defined as FWHM along the
fast axis
|
|
Beam Diameter
|
-
|
4
|
-
|
mm
|
Measured at the window of the HHL
|
|
Pulse Width
|
20
|
300
|
CW
|
ns
|
Only certain models can reach CW operation
|
|
Packaging
|
|
HHL
|
|
|
Data for HHL shown but chips on submount also available
|
|
Dimensions
|
|
33×45×19
|
|
mm3
|
Excluding 20 mm pins
|
|
TEC Current
|
1.5
|
2
|
3
|
A
|
|
|
TEC Voltage
|
9
|
12
|
18
|
V
|
|
|
Heatsink Cooling
Capacity
|
25
|
35
|
65
|
W
|
A heat dissipation capacity of 10 W/K is recommmended to ensure optimal performances.
|
|
Lead Time
|
-
|
8
|
-
|
weeks
|
|
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