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Telecom to mid-infrared spanning supercontinuum generation in hydrogenated amorphous silicon waveguides using a Thulium doped fiber laser pump source

par Dave, Utsav;Uvin, Sarah;Kuyken, Bart;Selvaraja, Shankar Kumar;Leo, François ;Roelkens, Gunther
Référence Optics express, 21, 26, page (32032-32039)
Publication Publié, 2013

Article révisé par les pairs

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Résumé :

A 1000 nm wide supercontinuum, spanning from 1470 nm in the telecom band to 2470 nm in the mid-infrared is demonstrated in a 800 nm x 220 nm 1 cm long hydrogenated amorphous silicon strip waveguide. The pump source was a picosecond Thulium doped fiber laser centered at 1950 nm. The real part of the nonlinear parameter of this waveguide at 1950 nm is measured to be 100±10 W -1m-1, while the imaginary part of the nonlinear parameter is measured to be 1.2±0.2 W-1m-1. The supercontinuum is stable over a period of at least several hours, as the hydrogenated amorphous silicon waveguides do not degrade when exposed to the high power picosecond pulse train. ©2013 Optical Society of America. © 2013 Optical Society of America.