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Simultaneous Amplification of Terahertz Difference Frequencies by an Injection-Seeded Semiconductor Laser Amplifier at 850 nm

Matsuura, Shuji and Chen, Pin and Blake, Geoffrey A. and Pearson, J. C. and Pickett, Herbert M. (1998) Simultaneous Amplification of Terahertz Difference Frequencies by an Injection-Seeded Semiconductor Laser Amplifier at 850 nm. International Journal of Infrared and Millimeter Waves, 19 (6). pp. 849-858. ISSN 0195-9271. http://resolver.caltech.edu/CaltechAUTHORS:20120919-094928326

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Abstract

Two-frequency operation of an 850 nm semiconductor optical amplifier was achieved by simultaneously injection seeding it with two diode lasers. The two frequencies could be independently amplified without strong interference when they were separated by more than 10 GHz, and the spectral purity was preserved by the amplification process. At frequency differences below 10 GHz, unbalanced two-frequency output was observed, which can be explained by a two-mode interaction driven by the refractive index modulation at the beat frequency. The laser system is suitable for the difference-frequency generation of coherent terahertz radiation in ultra-fast photoconductors or nonlinear optical media.


Item Type:Article
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http://dx.doi.org/10.1023/A:1022676407601DOIUNSPECIFIED
http://www.springerlink.com/content/m1820913x16u5210/?MUD=MPPublisherUNSPECIFIED
Additional Information:© 1998 Springer. Received March 27, 1998. We thank T. J. Crawford of Jet Propulsion Laboratory for his technical support. This work was supported by the National Aeronautics and Space Administration. G. A. Blake acknowledges additional support from the National Science Foundation.
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Subject Keywords:Semiconductor laser amplifier; Two-frequency injection seeding; Difference-frequency generation; Submillimeter; Terahertz; Coherent radiation
Record Number:CaltechAUTHORS:20120919-094928326
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20120919-094928326
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:34200
Collection:CaltechAUTHORS
Deposited By: Jason Perez
Deposited On:19 Sep 2012 18:42
Last Modified:19 Sep 2012 18:42

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