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Published July 1, 1983 | public
Journal Article Open

Direct amplitude modulation of short-cavity GaAs lasers up to X-band frequencies


Experimental and theoretical studies indicate that a high-frequency laser with bandwidths up to X-band frequencies (~> 10 GHz) should be one having a short cavity with a window structure, and preferably operating at low temperatures. These designs would accomplish the task of shortening the photon lifetime, increasing the intrinsic optical gain, and increasing the internal photon density without inflicting mirror damage. A modulation bandwidth of >8 GHz has been achieved using a 120-µm laser without any special window structure at room temperature.

Additional Information

© 1983 American Institute of Physics. Received 28 February 1983; accepted 5 April 1983. This research was supported by the Defense Advance Research Project Agency, the National Science Foundation under the Optical Communication Program, and by the Army Research Office.


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