Abstract

We report frequency-tunable terahertz (THz) generation with a photomixer driven by an ultra-broadband tunable micro-electro-mechanical system vertical-cavity surface-emitting laser (MEMS-VCSEL) and a fixed-wavelength VCSEL, as well as a tunable MEMS-VCSEL mixed with a distributed feedback (DFB) diode. A total frequency span of 3.4 THz is covered in direct detection mode and 3.23 THz in the homodyne mode. The tuning range is solely limited by the dynamic range of the photomixers and the Schottky diode/photoconductor used in the experiment.

© 2015 Optical Society of America

Bidirectional electrostatic MEMS-tunable VCSELs

Arnhold Simonsen, Masoud Payandeh, Søren Engelberth Hansen, Andrey Marchevsky, Gyeong Cheol Park, Hitesh Kumar Sahoo, Elizaveta Semenova, Ole Hansen, and Kresten Yvind
Opt. Lett. 49(4) 802-805 (2024)

Tunable terahertz wave generation through a bimodal laser diode and plasmonic photomixer

S.-H. Yang, R. Watts, X. Li, N. Wang, V. Cojocaru, J. O’Gorman, L. P. Barry, and M. Jarrahi
Opt. Express 23(24) 31206-31215 (2015)

MEMS-tunable VCSELs using 2D high-contrast gratings

Pengfei Qiao, Kun Li, Kevin T. Cook, and Connie J. Chang-Hasnain
Opt. Lett. 42(4) 823-826 (2017)

Tunable continuous-wave terahertz generation/detection with compact 1.55 μm detuned dual-mode laser diode and InGaAs based photomixer

Namje Kim, Sang-Pil Han, Hyunsung Ko, Young Ahn Leem, Han-Cheol Ryu, Chul Wook Lee, Donghun Lee, Min Yong Jeon, Sam Kyu Noh, and Kyung Hyun Park
Opt. Express 19(16) 15397-15403 (2011)

Far-field, linewidth and thermal characteristics of a high-speed 1550-nm MEMS tunable VCSEL

Sujoy Paul, Mohammad Tanvir Haidar, Julijan Cesar, Mohammadreza Malekizandi, Benjamin Kögel, Christian Neumeyr, Markus Ortsiefer, and Franko Küppers
Opt. Express 24(12) 13142-13156 (2016)