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

Selection of operating wavelength of the Yb‐doped fiber‐ring lasers using long‐period fiber gratings (LPFGs) is proposed. In the proposed method, customized LPFG that sustains high powers serves as a broad‐band rejection filter. It modifies the net gain profile of the laser, enabling the peak gain to occur at a designed wavelength. Spectral range of oscillation between 1050‐1110 nm was experimentally demonstrated. The spectral range can be extended to both shorter and longer wavelengths with proper design of the LPFG and length of the Yb‐doped fiber. The gratings were inscribed by CO2 laser and the grating period down to 175  μ  m was achieved being, to our best knowledge, the shortest reported LPFG period using this technique. (© 2009 by Astro Ltd., Published exclusively by WILEY‐VCH Verlag GmbH &amp; Co. KGaA)

Long‐period fiber grating as wavelength selective element in double‐clad Yb‐doped fiber‐ring lasers