Distributed Bragg reflector fiber laser fabricated by femtosecond laser inscription.
A femtosecond laser inscription technique is proposed for the fabrication of a fiber grating laser directly into a nonphotosensitive gain fiber. A distributed Bragg reflector fiber grating laser is realized in a conventional, untreated Er:Yb-codoped fiber as an illustration. Robust, single-mode, single-polarization laser operation at temperatures in excess of 600 degrees C is further achieved without compromising performance. A nonlinear, thermally induced wavelength shift is also observed at elevated temperatures.
Lai
Y
Y
Photonics Research Group, School of Engineering and Applied Science, Aston University, Birmingham, UK. laiy@aston.ac.uk
Martinez
A
A
Khrushchev
I
I
Bennion
I
I