Photonic generation of sub-terahertz noises and its application to spectroscopy measurement
- Title
- Photonic generation of sub-terahertz noises and its application to spectroscopy measurement
- Authors
- Song, Ho-Jin; Shimizu, Naofumi; Furuta, Tomofumi; Wakatsuki, Atsushi; Nagatuma, Tadao
- Date Issued
- 2008-10
- Publisher
- IEEE
- Abstract
- We present a photonic technique for generating subterahertz noise with an optical amplifier, arrayed waveguide grating (AWG), and uni-travelling carrier photodiode (UTC-PD). This scheme provides a high noise level and good controllability of the noise level and frequency band. The power density of the generated sub-terahertz noise is approximately -130.1 dBm/Hz at 350 GHz, which is 43.9 dB higher than the thermal noise (-174 dBm/Hz). Utilizing the implemented sub-terahertz noise generator with an UTC-PD module, we measured the absorption lines of N
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/112739
- Article Type
- Conference
- Citation
- 38th European Microwave Conference, EuMC 2008, page. 373 - 376, 2008-10
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