Recent developments in dual-wavelength DFB waveguide lasers fabricated by femtosecond laser pulses

Author

Duan, Yuwen ; Ams, Martin ; Marshall, Graham D. ; Dekker, Peter ; Steel, M.J. ; Withford, Michael J.

Author_Institution

Dept. of Phys. & Astron., Macquarie Univ., Sydney, NSW, Australia

fYear

2011

fDate

Aug. 28 2011-Sept. 1 2011

Firstpage

1349

Lastpage

1350

Abstract

We report a dual-wavelength (DW) distributed feedback (DFB) waveguide laser based on a symmetric periodically sampled grating fabricated in Yb-doped phosphate glass, using the femtosecond laser direct-write technique. The experimental results show that the peak spacing must be larger than 10 nm for stable operation. For improvement of the lasing performance, an asymmetric sampled grating structure is proposed such that a DW-DFB waveguide laser with 40 pm peak spacing is possible.

Keywords

distributed feedback lasers; high-speed optical techniques; laser materials processing; optical fabrication; waveguide lasers; ytterbium; dual-wavelength DFB waveguide lasers; dual-wavelength distributed feedback waveguide laser; femtosecond laser direct-write technique; femtosecond laser pulses; phosphate glass; size 40 pm; symmetric periodically sampled grating; Bragg gratings; Fiber lasers; Gratings; Laser modes; Laser theory; Optical waveguides; Waveguide lasers;

fLanguage

English

Publisher

ieee

Conference_Titel

Quantum Electronics Conference & Lasers and Electro-Optics (CLEO/IQEC/PACIFIC RIM), 2011

Conference_Location

Sydney, NSW

Print_ISBN

978-1-4577-1939-4

Type

conf

DOI

10.1109/IQEC-CLEO.2011.6193864

Filename

6193864