Title :
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
fDate :
Aug. 28 2011-Sept. 1 2011
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;
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
DOI :
10.1109/IQEC-CLEO.2011.6193864
