Tunable wavelength generation in the 1µm region incorporating a 16-channel arrayed waveguide grating (AWG)

Abstract

A tunable single-and dual-wavelength ytterbium-doped fiber laser, incorporating a 16-channel arrayed waveguide grating is proposed and demonstrated. The side mode suppression ratio from the proposed setup has an average value of 52.97 dB (single-wavelength generation) and 58.19 dB (dual-wavelength generation). The tunable dual wavelength ranged from 1039.98 nm to 1047.48 nm with wavelength spacing ranging from 0.50 nm to 7.5 nm. A stability test from the experiment shows a power variation of 0.8 dB, and a wavelength fluctuation of 0.02 nm indicates the stability and reliability of the proposed work.

Generation of dual-wavelength ytterbium-doped fibre laser using a highly nonlinear fibre

“…Utilizing the FBG as wavelength filter is still a popular method in both EDF and YDF [12][13][14]. Ahmad et al reported the YDF-based DWFL using an optical channel selector and an arrayed waveguide grating [15,16]. Furthermore, the YDF has a broader spectrum range (970-1200 nm [17]), which is a plus point when compared to the spectrum range of an EDF (1550-1625 nm).…”