Abstract
The temperature dependency of erbium doped distributed feedback fiber laser output performance is experimentally and theoretically investigated with two major pump schemes. The output power declined linearly as temperature increased from 30 °C to 120 °C for 980 nm and 1480 nm pumped test laser while the later exhibited stronger heat susceptibility. Further experiment and analysis identified the temperature induced absorption and emission cross section variation at pump and signal wavelength together with population inversion rate difference are the originations of the thermal sensitivity discrepancy between the two pump setups. Associated theoretical simulation concludes the erbium doped distributed feedback fiber laser thermal output sensitivity is dependent on its gain dynamics and grating structure simultaneously.
Highlights
Short cavity erbium doped distributed feedback fiber laser (DFB-FL) has been extensively studied and developed for its unique characteristics such as intrinsic fiber compatibility, robust single longitudinal mode operation, narrow linewidth in the order of 1–10 kHz, compact dimension and relative ease of fabrication [1]–[3]
A power meter (Expo FPM-600) was put at the wavelength division multiplexer (WDM) 1550 nm output arm to pick up the DFB-FL output power
We have comparatively investigated the thermal impacts on the output power performance of DFB-FL employing different pump setups
Summary
Jian Guo ,1 Haifeng Qi ,1 Zhiqiang Song, Jiasheng Ni, Chang Wang, Weitao Wang ,1 and Gangding Peng 1.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
