Effective mode selector for tunable terahertz wire lasers
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Hu_Effective mode.pdf
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376.52 KB
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Author(s)
Qin, Qi
Han, Ningren
Kao, Tsung-Yu
Reno, John L.
Hu, Qing
Kao, Tsung-Yu
Date Issued
February 2013
Journal
Optics Letters
Publisher
Optical Society of America
Citation
Qin, Qi, Ningren Han, Tsung-Yu Kao, John L. Reno, and Qing Hu. “Effective Mode Selector for Tunable Terahertz Wire Lasers.” Optics Letters 38, no. 4 (February 15, 2013): 407. © 2013 Optical Society of America.
Version
Final published version
Abstract
We demonstrate an effective mode selector design that enables a terahertz quantum cascade wire laser to have a robust single-mode operation at frequencies much lower than the gain peak. This is achieved by selectively guiding the undesired modes into a lossy session while keeping the desired lasing mode largely unperturbed. The large mode discrimination obtained by this mode selector is necessary to further extend the tuning range to the lower half of the gain curve. Additionally, the connectors of this mode selector conveniently provide electrical bias to the wire lasers without degrading the lasing performance.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Massachusetts Institute of Technology. Research Laboratory of Electronics
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
https://doi.org/10.1364/OL.38.000407
