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Mode-locking of an Yb:Er fiber laser at 1.56µm

Suni, P.J., Hanna, D.C., Kazer, A., Phillips, M.W. and Shepherd, D.P. (1989) Mode-locking of an Yb:Er fiber laser at 1.56µm At Conference on Lasers and Electro-Optics (CLEO '89 ), United States.

Record type: Conference or Workshop Item (Paper)


We describe the first operation of an actively mode-locked Er fiber laser at 1.56 µm. Short pulse laser sources operating in the 1.5-µm spectral range are needed for two reasons. First, current fiber optical communication systems operate in this spectral region because of the low loss of silica fibers. Second, 1.56 µm falls in the region of the negative group velocity dispersion (GVD) of silica. It is well known that by combining the effects of a Kerr nonlinearity to produce a frequency chirped pulse and negative GVD, significant pulse compression can be achieved. The laser we describe is of particular significance because it has all the ingredients needed to produce significant nonlinear propagation effects. In addition to operating at a suitable wavelength, the doped silica fiber already incorporates the Kerr nonlinearity and negative GVD. Thus, in contrast to other nonlinear laser systems which introduce an external cavity to produce the nonlinearity, in this laser the necessary nonlinear element is an integral part of the laser cavity. Currently the pulse peak powers in our laser are approaching the level at which nonlinear effects become significant

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Published date: April 1989
Additional Information: TUP5
Venue - Dates: Conference on Lasers and Electro-Optics (CLEO '89 ), United States, 1989-04-01
Organisations: Physics & Astronomy


Local EPrints ID: 77567
PURE UUID: 8e619238-2710-4e5d-aca5-d68b7026925d
ORCID for D.P. Shepherd: ORCID iD

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Date deposited: 11 Mar 2010
Last modified: 18 Jul 2017 23:31

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Author: P.J. Suni
Author: D.C. Hanna
Author: A. Kazer
Author: M.W. Phillips
Author: D.P. Shepherd ORCID iD

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