Optical Sciences

Biomolecules and nanostructures

The Optical Sciences group studies the interaction of light and matter. Our current focus is on detection and sensing/imaging with an emphasis on the development of integrated photonics. We are part of Twente University's Department of Science and Technology and member of the MESA+ institute.


73-nm tuning of a double-clad Yb3+-doped fiber laser based on a hybrid array

(full pdf)

Alvarez-Chavez JA, Martinez-Rios A, Torres-Gomez I, Gonzalez-Garcia A, Offerhaus HL
Laser Physics
vol. 18 issue 3 p353-356 april 3, 2008

We report on a wide wavelength tuning in a double-clad ytterbium-doped fiber laser. The laser cavity consists of an array of broadband high-reflection fiber Bragg gratings and a bulk grating as the output coupler and wavelength selection element. The proposed fiber laser configuration combines a low intracavity loss of the fiber Bragg grating mirrors with a wide wavelength tuning of the bulk gratings. We demonstrate a > 70-nm wavelength tuning range, limited only by the available fiber Bragg gratings.
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