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Optics Letters

Optics Letters


  • Vol. 26, Iss. 20 — Oct. 15, 2001
  • pp: 1615–1617

All-optical square-pulse generation and multiplication at 1.5 μm by use of a novel class of fiber Bragg gratings

M. Marano, S. Longhi, P. Laporta, M. Belmonte, and B. Agogliati  »View Author Affiliations

Optics Letters, Vol. 26, Issue 20, pp. 1615-1617 (2001)

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A new class of linearly chirped fiber Bragg gratings, suitable for all-fiber optical multiplication and reshaping of picosecond pulse trains, is proposed and experimentally demonstrated. Repetition-rate multiplication, based on the temporal Talbot effect, is achieved by accurate control of the grating chirp, and a suitable design of the index-modulation depth profile allows for simultaneous square-pulse shaping. A 50-ps squarelike optical pulse train at 10-GHz repetition rate is obtained, starting from a 2.5-GHz Gaussian pulse train emitted by a mode-locked Er-Yb laser.

© 2001 Optical Society of America

OCIS Codes
(140.3570) Lasers and laser optics : Lasers, single-mode
(320.5540) Ultrafast optics : Pulse shaping

M. Marano, S. Longhi, P. Laporta, M. Belmonte, and B. Agogliati, "All-optical square-pulse generation and multiplication at 1.5 μm by use of a novel class of fiber Bragg gratings," Opt. Lett. 26, 1615-1617 (2001)

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