English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We describe a polarization-maintaining (PM) λ/4-shifted DFB Er-doped fiber laser (EDFL), in which optical pulsation effects caused by Er3+ ion-pairs were successfully removed by co-doping erbium fiber with 12wt% aluminum. Stable CW operation was realized at a pump power of 100mW. The laser exhibited single longitudinalmode oscillation with a single polarization. The output power, linewidth of the longitudinal mode, and RIN at the relaxation oscillation frequency were 0.5mW, 82 kHz, and −79 dB/Hz at a pump power of 100mW, respectively. Stable operation was also obtained at a pump power of 140mW, where the above values were improved to 0.8mW, 43 kHz, and −92 dB/Hz, respectively.

A CW, polarization-maintaining .LAMBDA./4-shifted DFB Er-doped fiber laser at 1.54.MU.m