High-frequency operation of a mid-infrared interband cascade system at room temperature
Abstract
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 109 cm Hz1/2/W at 300 K. These results validate the advantage of ICIPs to achieve both high speed and high sensitivity at high temperatures.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- May 16, 2016
- Source ID
- 10.1063/1.4950700
Entities
People
- Hao Ye
- Hossein Lotfi
- James A. Gupta
- Lin Lei
- Lu Li
- Matthew B. Johnson
- Michael B. Santos
- Rui Q. Yang
- S. M. Shazzad Rassel
- Tetsuya D. Mishima
- Yuchao Jiang
Organizations
- Air Force Office of Scientific Research
- National Research Council Canada
- University of Oklahoma