Analysis of a narrowband terahertz signal generated by a unitravelling carrier photodiode coupled with a dual-mode semiconductor Fabry-Perot laser

作者：Latkowski Sylwester^*; Parra Cetina Josue; Maldonado Basilio Ramon; Landais Pascal; Ducournau Guillaume; Beck Alexandre; Peytavit Emilien; Akalin Tahsin; Lampin Jean Francois

来源：Applied Physics Letters, 2010, 96(24): 241106.

DOI：10.1063/1.3447931

• Fabry-Perot interferometers
• horn antennas
• microwave photonics
• photodiodes
• semiconductor lasers
• signal generators
• terahertz wave generation

A narrowband terahertz signal generated by a unitravelling carrier photodiode (UTC-PD) interfaced with a dual-mode Fabry-Perot laser diode is demonstrated. A beat tone corresponding to the free spectral range is generated on the UTC-PD, and radiated by a transverse-electromagnetic-horn antenna. A terahertz signal at a frequency of 372 GHz, featuring a linewidth of 17 MHz is recorded by a subharmonic mixer coupled to an electrical spectrum analyzer. All components involved in this experiment operate at room temperature. The linewidth and the frequency of the emitted terahertz wave are analyzed, along with their dependency on dc-bias conditions applied to laser diode.

• 出版日期2010-6-14