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Proceedings Paper

THz wave generation using frequency stabilized laser diodes
Author(s): Yasuhito Minamisawa; Toshiya Nimonji; Kenji Nakano; Tkashi Sato; Masashi Ohkawa
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Paper Abstract

A laser diode (LD) has been used in many areas, such as optical communication systems. However, its oscillation frequency changes, with variations in ambient temperature and injection current, so its frequency stabilization is of vital importance. In these situations, Rb saturated absorption spectroscopy is the method of choice. We use the beat signal, both for the purpose of evaluating frequency stability between two independently stabilized LDs, and for generating THz waves. This work shows a basic experiment using our beat signal observation, by high-speed photodetector. In addition, we have also used a frequency-stabilized etalon, to improve frequency selectivity.

Paper Details

Date Published: 28 February 2012
PDF: 8 pages
Proc. SPIE 8255, Physics and Simulation of Optoelectronic Devices XX, 82551L (28 February 2012); doi: 10.1117/12.908275
Show Author Affiliations
Yasuhito Minamisawa, Niigata Univ. (Japan)
Toshiya Nimonji, Niigata Univ. (Japan)
Kenji Nakano, Niigata Univ. (Japan)
Tkashi Sato, Niigata Univ. (Japan)
Masashi Ohkawa, Niigata Univ. (Japan)

Published in SPIE Proceedings Vol. 8255:
Physics and Simulation of Optoelectronic Devices XX
Bernd Witzigmann; Marek Osinski; Fritz Henneberger; Yasuhiko Arakawa, Editor(s)

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