Title :
Wavelength-flattened asymmetric directional couplers written by focused femtosecond laser
Author :
Chen, Wei-Jen ; Eaton, Shane M. ; Zhang, Haibin ; Herman, Peter R.
Author_Institution :
Edward S. Rogers Dept. of Electr. & Comput. Eng. & Inst. for Opt. Sci., Toronto Univ., Toronto, ON
Abstract :
Asymmetric directional couplers were written inside bulk borosilicate glass by a high repetition rate femtosecond laser. Wavelength-dependent coupling ratios were tuned by laser exposure and coupler geometry, yielding flattened spectral response (plusmn5%) over >400-nm bandwidth.
Keywords :
borosilicate glasses; high-speed optical techniques; integrated optics; laser materials processing; optical directional couplers; optical glass; B2O3SiO2; asymmetric directional couplers; bulk borosilicate glass; coupler geometry; femtosecond laser; focused laser; laser tuning; wavelength-dependent coupling ratio; wavelength-flattened couplers; Directional couplers; Laser modes; Laser theory; Laser tuning; Optical coupling; Optical interferometry; Optical waveguides; Programmable control; Ultrafast optics; Waveguide lasers; (230.1360) Beam splitters; (230.7370) Waveguides; (320.2250) Femtosecond phenomena; (350.3390) Laser materials processing;
Conference_Titel :
Lasers and Electro-Optics, 2008 and 2008 Conference on Quantum Electronics and Laser Science. CLEO/QELS 2008. Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-55752-859-9
