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Rapid continuous tuning of a single-polarization fiber ring laser

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3 Author(s)
Frankel, M.Y. ; Naval Res. Lab., Washington, DC, USA ; Esman, R.D. ; Weller, J.F.

We have developed and studied what we believe is the first fiber laser operating in a single polarization at 1550 nm with PM fiber output and capable of wavelength tuning over a 20-nm bandwidth in less than 50 μs. The fast wavelength tuning speed in a fiber laser is achieved by incorporating an acousto-optic tunable filter into the laser. The same filter is used in an optoelectronic feedback loop to suppress the relaxation oscillations induced by wavelength transitions.

Published in:

Photonics Technology Letters, IEEE  (Volume:6 ,  Issue: 5 )