@inproceedings{3cc04ff3e589474e9ba6446ed8d6b1a5,
title = "On-chip integrated lasers in Al2O3:Er on silicon",
abstract = "Erbium-doped aluminum oxide channel waveguides were fabricated on silicon substrates and their characteristics were investigated for Er concentrations ranging from 0.27 to 4.2x10e20 cm-3. Background losses below 0.3 dB/cm at 1320 nm were measured. For optimum Er concentrations in the range of 1 to 2x10e20 cm-3, internal net gain was obtained over a wavelength range of 80 nm (1500-1580 nm) and a peak gain of 2.0 dB/cm was measured at 1533 nm. Integrated Al2O3:Er3+ channel waveguide ring lasers were realized based on such waveguides. Output powers of up to 9.5 µW and slope efficiencies of up to 0.11 % were measured. Lasing was observed for a threshold diode-pump power as low as 6.4 mW. Wavelength selection in the range 1530 to 1557 nm was demonstrated by varying the length of the output coupler from the ring.",
keywords = "IR-70511, METIS-270762, optical gain, Waveguide laser, Rare-earth-ion doping, Erbium, integrated ring laser, Channel waveguide, IOMS-APD: Active Photonic Devices, EWI-17680, EC Grant Agreement nr.: FP6/017501, tunable laser, Aluminum oxide",
author = "Markus Pollnau and J. Bradley and F. Ay and Edward Bernhardi and {de Ridder}, R.M. and Kerstin Worhoff",
note = "eemcs-eprint-17680 ; null ; Conference date: 23-01-2010 Through 28-01-2010",
year = "2010",
month = feb,
doi = "10.1117/12.845842",
language = "Undefined",
isbn = "9780819480019",
series = "Proceedings of the SPIE",
publisher = "SPIE - The International Society for Optical Engineering",
pages = "76050M",
editor = "Eldada, {Louay A.} and El-Hang Lee",
booktitle = "Photonics West",
}