Narrow Spacing Dual-Wavelength Fiber Laser Based on Polarization Dependent Loss Control

Author

Ahmad, Harith ; Soltanian, M.R.K. ; Pua, C.H. ; Zulkifli, Mohd Zamani ; Harun, Sulaiman Wadi

Author_Institution

Photonics Res. Centre, Univ. of Malaya, Kuala Lumpur, Malaysia

Volume

5

Issue

6

fYear

2013

fDate

Dec. 2013

Firstpage

1502706

Lastpage

1502706

Abstract

By controlling the polarization state of a simple ring erbium-doped fiber laser with photonics crystal fiber, polarization controller (PC) and tunable band-pass filter, this paper demonstrates stable operation of narrow spacing dual-wavelength fiber laser (DWFL). The flexibility of the tunable band-pass filter and PC allows the spacing tuning of the DWFL from 80 pm up to 600 pm. Such tuning ability offers flexibility in the application of DWFL, particularly in tunable microwave generation and radio over fiber. Throughout the experiment, the DWFL shows high power stability within 0.6 dB and wavelength shift of less than 10 pm. In addition to that, it also produces a narrow linewidth optical output of 3 pm with a high signal to noise ratio of more than 60 dB.

Keywords

band-pass filters; erbium; fibre lasers; holey fibres; laser beams; laser noise; laser stability; laser tuning; optical control; optical fibre filters; optical fibre losses; optical fibre polarisation; photonic crystals; ring lasers; DWFL; narrow linewidth optical output; narrow spacing dual-wavelength fiber laser; photonic crystal fiber; polarization dependent loss control; polarization state; power stability; radio over fiber; ring erbium-doped fiber laser; signal-to-noise ratio; stable operation; tunable band-pass filter; tunable microwave generation; tuning ability; wavelength shift; Dual-wavelength; erbium-doped fiber laser (EDFL); narrow spacing; polarization dependent loss (PDL);

fLanguage

English

Journal_Title

Photonics Journal, IEEE

Publisher

ieee

ISSN

1943-0655

Type

jour

DOI

10.1109/JPHOT.2013.2293613

Filename

6678198