1) Research Institute of Electrical Communication, Tohoku University
Mode-locked laser, erbium fiber laser
The final version of this article with its full bibliographical information is available. To access the article, click here (Vol. 14 (2017), No. 19 pp. 20170829-20170829).
We report a 40-GHz harmonically and regeneratively FM mode-locked erbium fiber laser with a phase-locked loop (PLL) circuit operating in the 1.6 μm region. The oscillation wavelength was extended to the L-band by using a 15 m erbium-doped fiber with an Er3+ concentration of 3500 ppm as a gain medium. As a result, a 770 fs transform-limited Gaussian pulse with a 14 mW output power was successfully generated with a timing jitter as low as 88 fs. The wavelength is tunable over 20 nm between 1583 and 1603 nm.
Edited and published by : The Institute of Electronics, Information and Communication Engineers Produced and listed by : Komiyama Printing Co., LTD.