About

Log in?

DTU users get better search results including licensed content and discounts on order fees.

Anyone can log in and get personalized features such as favorites, tags and feeds.

Log in as DTU user Log in as non-DTU user No thanks

DTU Findit
Boolean: (bicycle AND helmet) OR (head AND protection) (always group AND in parenthesis)
Title: title:(climate change)
Author: author:("bohr niels" OR "bohr n") (avoid only full first name)
Phrase: "water pump control" (does not work with wildcards)
Wildcards: wom?n pharm*

More help on how to search

Flexible matching

About search syntax

Search syntax Advanced
Close advanced
{{problem}}
By field Using AND/OR By author
This tool can help you build boolean queries suitable for doing a broad search for different synonyms or spellings of each word. Start via the drop-down below or just start typing in the search field.
{{ row.typeTitle }}: ( )

Since our index often lack the full first name of people it can be difficult to correctly search by author.

Fill in the fields and let us help you build a good query:

If you need to find everything possible, consider only searching by last name.

Use "Starting year" to ignore publications out of year range.

More...

Conference paper

Highly efficient high power single-mode fiber amplifier utilizing the distributed mode filtering bandgap rod fiber

By Laurila, Marko1,2; Alkeskjold, Thomas T.3; Jørgensen, Mette Marie1,2; Petersen, Sidsel R.3; Broeng, Jes; Lægsgaard, Jesper1,2

Edited by Honea, Eric C.; Hendow, Sami T.

From

Department of Photonics Engineering, Technical University of Denmark1

Fiber Optics, Devices and Non-linear Effects, Department of Photonics Engineering, Technical University of Denmark2

NKT Group3

We report on an ytterbium doped single mode distributed mode filtering rod fiber in an amplifier configuration delivering high average output power, up to 292 watts, using a mode-locked 30ps source at 1032nm with good power conversion efficiency. We study the modal stability of the output beam at high average output power levels and demonstrate a 44% power improvement before the threshold-like onset of mode instabilities by operating the rod fiber in a leaky waveguide regime.

We investigate the guiding dynamics of the rod fiber and explain the improved performance by thermally induced refractive index profile change.

Language: English
Year: 2012
Pages: 823710-9
Proceedings: SPIE Photonics West : Fiber Lasers IX: Technology, Systems, and Applications
ISSN: 1996756x and 0277786x
Types: Conference paper
DOI: 10.1117/12.907736
ORCIDs: Jørgensen, Mette Marie , Broeng, Jes and Lægsgaard, Jesper
Keywords

Fiber lasers Micro structure fibers

DTU users get better search results including licensed content and discounts on order fees.

Log in as DTU user

Access

Analysis