Tunable terahertz signals using a helicoidally polarized ceramic microchip laser

Aaron McKay; Judith M. Dawes

doi:10.1109/LPT.2009.2013727

Tunable terahertz signals using a helicoidally polarized ceramic microchip laser

Aaron McKay^*, Judith M. Dawes

^*Corresponding author for this work

MQ Photonics Research Centre

Research output: Contribution to journal › Article › peer-review

39 Citations (Scopus)

39 Downloads (Pure)

Abstract

A two-frequency microchip laser based on highly doped ceramic Nd:YAG and twisted polarization modes is presented. The frequency difference between modes was tunable continuously over a frequency range of 150 GHz, from radio frequency to terahertz frequencies. This tuning is limited by the gain bandwidth of the Neodymium-doped YAG laser medium. The long-term frequency stability of the resulting narrow-linewidth beat-note signal is very good. This offers a simple, yet widely tunable terahertz source with potential for portable frequency reference applications.

Original language	English
Pages (from-to)	480-482
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	21
Issue number	7
DOIs	https://doi.org/10.1109/LPT.2009.2013727
Publication status	Published - 1 Apr 2009

Bibliographical note

Copyright 2009 IEEE. Reprinted from IEEE photonics technology letters, Volume 21, Issue 7, 480-482. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of Macquarie Universityâ€™s products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to [email protected]. By choosing to view this document, you agree to all provisions of the copyright laws protecting it.

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abstract = "A two-frequency microchip laser based on highly doped ceramic Nd:YAG and twisted polarization modes is presented. The frequency difference between modes was tunable continuously over a frequency range of 150 GHz, from radio frequency to terahertz frequencies. This tuning is limited by the gain bandwidth of the Neodymium-doped YAG laser medium. The long-term frequency stability of the resulting narrow-linewidth beat-note signal is very good. This offers a simple, yet widely tunable terahertz source with potential for portable frequency reference applications.",

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Tunable terahertz signals using a helicoidally polarized ceramic microchip laser

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