10 October 2003 New IR detectors pig-tailed with IR fibers
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Proceedings Volume 5074, Infrared Technology and Applications XXIX; (2003); doi: 10.1117/12.499591
Event: AeroSense 2003, 2003, Orlando, Florida, United States
Abstract
New generation of Mercury-Cadmium-Telluride (MCT) high performance infrared radiation (IR) detectors with IR-fiber input has been developed and fabricated. This new product is originated from 25 years experience in MCT detectors and IR fiber optics technologies. Range of products includes single- and multi-element detectors designed for registration of optical signals in spectral range from 2 to 18 μm. Detectors design is integrated or modular and includes package, sensitive element, cooling system, operating temperature sensor, optical components such as narrow band-pass filter and/or lens and/or different kind of optical window, optical connection unit and fiber pig-tail or fiber cable. Cooling system options include thermoelectric cooler, long-holding time dewar filled with liquid nitrogen, Joule-Thomson micro-liquidizer and Stirling-cycle cooler. Registered infrared radiation is delivered to sensitive area of detector through either Polycrystalline InfraRed (PIR-) Fiber (4 - 18 μm) or Chalcogenide IR-glass (CIR-) Fiber (2 - 6 μm). Unique feature intrinsic to Hg1-xCdxTe (MCT) alloys to form continuous series of alloy compositions "x" with proportionally changed energy gap Eg(x,T) allows to tune spectral responsivity of detector sensitive element with ordered spectral range and hence to use every time the highest sensitive detector.
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Viatcheslav G. Artiouchenko, Galina V. Chekanova, Ivan Yu. Lartsev, Vladimir A. Lobachev, Mikhail S. Nikitine, "New IR detectors pig-tailed with IR fibers", Proc. SPIE 5074, Infrared Technology and Applications XXIX, (10 October 2003); doi: 10.1117/12.499591; https://doi.org/10.1117/12.499591
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KEYWORDS
Sensors

Infrared detectors

Infrared radiation

Infrared sensors

Cadmium

Chemical elements

Mercury

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