High Performance IR Pulsable Sources

High Pulse Rate IR Source

EOC offers a series of miniature pulsed infrared (IR) light sources with high intensity and ability to pulse at high frequencies. Their emission spectrum is that of a gray body.  These IR sources use patented a-CNC films as multilayer thermoresistive elements (see below).  The a-CNC’s durability makes it possible to have a 2 micron thick element with very low thermal mass that allows rapid heating and cooling for pulsing at higher frequencies than any other technology can do.

Check the high efficiency Nanostructure IR Sources with a near black-body emittance. They are high power and also available in SMD packaging.

The key advantages of these pulsed sources are:

Wide Spectral Output
1 – 20 μm provides the widest emission spectrum

High Efficiency
With emissivity of >0.8 the spectrum is close to that of a black body

Fast Response
These IR sources can be modulated at a frequency of over 100 Hz because the sources’ membranes are only 2 microns thick with very low thermal mass.

Operates at Higher Temperatures
Achieves its efficiency by operating at a higher temperature than competing technologies

Long Life and Cost Effective
With a lifetime of up to 25,000 hours and absence of any need for separate modulation, maintenance and product cost are reduced

Windows for Explosive Gases and Harsh Environments
NovaIR offers as an option detectors with windows for applications with explosive gasses or harsh environments

Custom Design
Custom design of IR sources is available.

Unique technology
These IR sources are based on proprietary conducting amorphous carbon nanocomposite (a-CNC) films as multilayer thermoresistive elements. High emissivity, high thermal conductivity and low thermal mass (2 microns thick) made possible by the high strength of the a-CNC material allow rapid heating and cooling for pulsed operations at higher frequencies than can be achieved with competing technologies. The IR pulsable light sources are fabricated using MEMS technology.

Schematic cross section of the infrared light source chip and the source mounted in a TO-5 housing.
(1) Bonding pads: (2) a-CNC multilayer membrane; (3) silicon support; (4) active emitter area.

Technical Notes on a-CNC:Nanoamorphous Carbon Coatings

Applications:

IR sources for infrared gas detectors for industrial, consumer, research and medical applications:

• Explosive gas detection systems: detecting methane and other explosive gases
• Combustion efficiency and stack emissions monitoring systems: measuring CO, CO₂, etc.
• Toxic emission systems: measuring SO_x, NO_x, NH₃
• Air quality monitoring systems
• HVAC efficiency: controlling airflow by measuring CO₂ concentration
• Spectrophotometers
• Patient bedside monitoring systems
• Anesthesia gas monitoring systems: CO₂ and anesthetic gases
• Noninvasive glucose measurements
• Automotive engine control and exhaust monitoring

To avoid damaging the IR sources during soldering and cleaning, consider using Sockets

Size mm/mm2	Modulation Frequency Hz	Modulation Depth	Input Power Typ/Max mW	Drive C & V Typ/Max mA/V	Effective Optical Gain	Lifetime @ 605 C	Package
2.2 x 2.2 4.8	1 - 100	99%@10Hz 50%@70Hz	770 / 1000	130mA / 5.9V 149mA / 6.7V		100,000 hrs	TO-5 TO-39
2.2 x 2.2 4.8	1 - 100	99%@10Hz 50%@70Hz	770 / 1000	130mA / 5.9V 149mA / 6.7V		100,000 hrs	TO-5 TO-39
2.2 x 2.2 4.8	1 - 100	99%@10Hz 50%@70Hz	770 / 1000	130mA / 5.9V 149mA / 6.7V	8 - 10 X	100,000 hrs	TO-5 TO-39
2.2 x 2.2 4.8	1 - 100	99%@10Hz 50%@70Hz	770 / 1000	130mA / 5.9V 149mA / 6.7V	8 - 10 X	100,000 hrs	TO-5 TO-39
2.2 x 2.2 4.8	1 - 100	99%@10Hz 50%@70Hz	770 / 1000	130mA / 5.9V 149mA / 6.7V		100,000 hrs	KD-DBOG-18
1.7 x 1.7 2.89	1 - 100	99%@10Hz 50%@100Hz	690 / 900	117mA / 5.9V 134mA / 6.7V		100,000 hrs	TO-5 TO-39
1.7 x 1.7 2.89	1 - 100	99%@10Hz 50%@100Hz	690 / 900	117mA / 5.9V 134mA / 6.7V		100,000 hrs	TO-5 TO-39
1.7 x 1.7 2.89	1 - 100	99%@10Hz 50%@100Hz	690 / 900	117mA / 5.9V 134mA / 6.7V	8 - 10 X	100,000 hrs	TO-5 TO-39
1.7 x 1.7 2.89	1 - 100	99%@10Hz 50%@100Hz	690 / 900	117mA / 5.9V 134mA / 6.7V	8 - 10 X	100,000 hrs	TO-5 TO-39

* Windows	λ Range - μm	Part Number
Can Only, No Window		-CAN
Sapphire	0.1 - 5.0	-SAP
CaF2	1.5 - 10	-CAF
BaF2	0.2 - 11	-BAF
Silicon with AR coating	1.1 - 14	-SIL

Technical Notes:

Frequently Asked Questions
Frequency vs Modulation Depth 
Operating Guidelines & Power vs Frequency
End of Life Measurements
Lifetime & Temperature vs Durability
Nanoamorphous Carbon Coatings
Beam Angular Distribution
Temperature Distribution
Temperature vs Lifetime & Input Power
Sockets for IR Sources