Fiber and integrated optics

Compact fiber-optic compressor of ultrashort pulses

S. P. Nikitin, G. I. Onishchukov, A. A. Fomichev


Abstract: A theoretical design of a universal compact fiber-optic compressor based on a monochromator with a spherical mirror in the plane of its exit slit was considered. Ultrashort pulses emitted by an actively mode-locked YAG:Nd³⁺ laser, whose spectrum was broadened in a fiber-optic waveguide, were compressed experimentally to 2.7 ns. A universal compact compressor was developed: it produced 4-ns pulses with an average radiation power of about 1 W. The dimensions of this compressor were several times smaller than those of a traditional scheme using a diffraction grating to compress pulses having an initial duration of about 100 ns.

UDC: 681.7.068

PACS: 42.65.Re, 42.55.Rz, 42.60.Fc, 42.79.Bh, 42.60.Jf

Received: 08.08.1991

 English version: Soviet Journal of Quantum Electronics, 1992, 22:2, 178–181

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