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Parametric THz Generation Pumped by Q-Switched Fiber Lasers in GaSe Crystal

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Two fiber lasers were simultaneously Q-switched by using one piezo to modulate the intracavity polarization-dependent loss, which were amplified as pump sources. Coherent and single-frequency THz radiation has been achieved by using all-fiber Q-switched laser pumps based on difference-frequency generation in GaSe crystal, for the first time to the best of our knowledge. The conversion efficiency was measured to be 1.26 × 10−7.

© 2007 Optical Society of America

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