Optical waveguide writing is demonstrated by means of a diode-pumped cavity-dumped Yb:glass femtosecond laser oscillator with a pulse energy of 270 nJ at a 166-kHz repetition rate. Waveguides realized on an Er:Yb-doped phosphate glass are almost perfectly mode matched to standard single-mode fibers at 1.55µm and show a 1.2-dB net gain in a standard telecommunications amplifier setup. Waveguide writing with a compact femtosecond laser oscillator is an important step toward introducing this technique into an industrial context.
© 2004 Optical Society of America
(130.3120) Integrated optics : Integrated optics devices
(140.3390) Lasers and laser optics : Laser materials processing
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.7090) Lasers and laser optics : Ultrafast lasers
Roberto Osellame, Nicola Chiodo, GiuseppeDella Valle, Stefano Taccheo, Roberta Ramponi, Giulio Cerullo, Alexander Killi, Uwe Morgner, Max Lederer, and Daniel Kopf, "Optical waveguide writing with a diode-pumped femtosecond oscillator," Opt. Lett. 29, 1900-1902 (2004)