Mode-hop-free single-longitudinal-mode erbium-doped fiber laser frequency scanned with a fiber ring resonator.
We describe the experimental construction of a single-longitudinal-mode erbium-doped fiber ring laser equipped with a ring resonator filter. The system is designed to avoid mode hopping and can be frequency scanned for spectroscopic sensor applications. We modified a conventional ring resonator filter to have the capability to reduce transmittance of unwanted modes, which is essential for frequency scanning without mode hopping.
Kim
S K
SK
Department of Electronic and Electrical Engineering, Optoelectronics Division, University of Strathclyde, 204 George Street, Glasgow G1 1XW, Scotland, UK. skkim@etri.re.kr
Stewart
G
G
Johnstone
W
W
Culshaw
B
B