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Journal Article

C-band waveguide amplifier produced by femtosecond laser writing

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Killi,  A.
Division Prof. Dr. Joachim H. Ullrich, MPI for Nuclear Physics, Max Planck Society;

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Morgner,  U.
Division Prof. Dr. Joachim H. Ullrich, MPI for Nuclear Physics, Max Planck Society;

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Citation

Della Valle, G., Osellame, R., Chiodo, N., Taccheo, S., Cerullo, G., Laporta, P., et al. (2005). C-band waveguide amplifier produced by femtosecond laser writing. Optics Express, 13(16), 5976-5982. Retrieved from http://www.opticsinfobase.org/abstract.cfm?URI=oe-13-16-5976.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0011-884F-C
Abstract
An optical waveguide amplifier fabricated on erbium-ytterbium-doped phosphate glass by direct femtosecond laser writing is demonstrated. The waveguides are manufactured using 1040-nm radiation from a diode-pumped cavity-dumped Yb:KYW oscillator, operating at a 885 kHz repetition rate, with a 350 fs pulse duration. Peak internal gain of 9.2 dB is obtained at 1535 nm, with a minimum internal gain of 5.2 dB at 1565 nm. Relatively low insertion losses of 1.9 dB enable for the first time an appreciable net gain in the full C-band of optical communications.