Tunable dual wavelength fiber laser incorporating AWG and optical channel selector by controlling the cavity loss

Document Type

Article

Publication Date

1-1-2009

Abstract

In this paper, we propose and demonstrated a dual wavelength fiber laser (DWFL) based on the use of an erbium doped fiber (EDF) gain medium as well as an 1 × 24 Arrayed Waveguide Grating (AWG) together with two optical channel selectors (OCS) to provide channel spacing tunability. The output power of the two wavelengths is equalized by controlling the cavity loss in the DWFL using two Programmable Optical Attenuators (POAs). The widest spacing obtained from the DWFL is 18.13 nm while the narrowest spacing is 0.8 nm. The DWFL has good stability with only minor power fluctuations of less than 1.5 dB and a Side Mode Suppression Ratio (SMSR) of approximately 69.1 dB with peak fluctuations of less than 2.3 dB.

Keywords

Dual wavelength, Ring erbium doped fiber laser, AWG

Publication Title

Optics Communications

ISSN

0030-4018

Divisions

fac_eng,PHYSICS

Volume

282

Issue

24

Publisher

Elsevier

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