High-frequency operation of a mid-infrared interband cascade system at room temperature
Applied Physics Letters, ISSN: 0003-6951, Vol: 108, Issue: 20
2016
- 51Citations
- 23Captures
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Article Description
The high-frequency operation of a mid-infrared interband cascade system that consists of a type-I interband cascade laser and an uncooled interband cascade infrared photodetector (ICIP) is demonstrated at room temperature. The 3-dB bandwidth of this system under direct frequency modulation was ∼850 MHz. A circuit model was developed to analyze the high-frequency characteristics. The extracted 3-dB bandwidth for an uncooled ICIP was ∼1.3 GHz, signifying the great potential of interband cascade structures for high-speed applications. The normalized Johnson-noise-limited detectivity of these ICIPs exceeded 10cm Hz/W at 300 K. These results validate the advantage of ICIPs to achieve both high speed and high sensitivity at high temperatures.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84969776919&origin=inward; http://dx.doi.org/10.1063/1.4950700; https://pubs.aip.org/apl/article/108/20/201101/31085/High-frequency-operation-of-a-mid-infrared; http://scitation.aip.org/content/aip/journal/apl/108/20/10.1063/1.4950700; http://scitation.aip.org/limit_exceeded.html
AIP Publishing
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