Elsevier

Optics Communications

Volume 66, Issue 1, 1 April 1988, Pages 41-46
Optics Communications

A new mode-locking technique using a nonlinear mirror

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Abstract

A novel simple technique of mode-locking is demonstrated. It uses a nonlinear mirror with intensity-dependent reflection coefficient. The mirror is constituted by a combination of a SHG crystal and a dichroic mirror with high reflectivity for the second harmonic and partial transmission for the fundamental. In a preliminary experiment with a Nd:YAG laser a train of ultrashort pulses has been obtained with individual pulse duration at the second harmonic wavelength of approx. 100 ps.

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Cited by (0)

1

On leave from: Department of Physics, Sofia University, BG- 1126 Sofia, Bulgaria. The author holds a research fellowship from Alexander von Humboldt-Foundation, 1986–1988.

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