Title :
Pump-noise-induced linewidth contributions in distributed feedback fiber lasers
Author :
Horak, Peter ; Voo, Nyuk Yoong ; Ibsen, Morten ; Loh, Wei H.
Author_Institution :
Optoelectronics Res. Centre, Univ. of Southampton, UK
fDate :
5/1/2006 12:00:00 AM
Abstract :
We investigate experimentally and theoretically the linewidth of an Er-Yb-doped distributed feedback fiber laser. We find that two noise sources are mainly responsible for the observed behavior, fundamental thermal noise at low pump power levels and temperature fluctuations induced by pump intensity noise at higher powers. Potential techniques to overcome these limitations are discussed.
Keywords :
distributed feedback lasers; fibre lasers; fluctuations; laser noise; optical pumping; spectral line breadth; thermal noise; Er-Yb-doped laser; distributed feedback lasers; fiber lasers; fundamental thermal noise; linewidth contributions; noise sources; pump noise; pump power levels; temperature fluctuations; Distributed feedback devices; Fiber lasers; Fluctuations; Laser excitation; Laser feedback; Laser noise; Laser theory; Noise level; Pump lasers; Temperature; Distributed feedback (DFB) lasers; laser noise; laser stability; optical fiber lasers;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2006.873546
