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Giant Optical Gain in a Rare‐Earth‐Ion‐Doped Microstructure
Author(s) -
Geskus Dimitri,
Aravazhi Shanmugam,
GarcíaBlanco Sonia M.,
Pollnau Markus
Publication year - 2012
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201101781
Subject(s) - materials science , tungstate , doping , microstructure , rare earth , net gain , ion , optoelectronics , optics , analytical chemistry (journal) , composite material , metallurgy , amplifier , chemistry , physics , cmos , chromatography , quantum mechanics
Modal gain per unit length versus launched pump power is predicted and measured in a 47.5 at.% Yb 3+ ‐doped potassium double tungstate channel waveguide. The highest measured gain exceeds values previously reported for rare‐earth‐ion‐doped materials by two orders of magnitude.