Title :
Integrated Broadband Polarization Splitters Made by Ion-Exchange on Glass
Author :
Parsy, Francois ; Ghibaudo, Elise ; Jamon, Damien ; Royer, Francois ; Broquin, Jean-Emmanuel
Author_Institution :
IMEP-LaHC Lab. of Grenoble, Univ. de Grenoble Alpes, Grenoble, France
Abstract :
In this letter, we present the design, fabrication, and characterization of a broadband polarization splitter working in the 1550-nm transmission window. The device is an asymmetric Y-junction realized by Ag+/Na+ ion exchange on glass. The transverse electric (TE) output branch of the device filters out the residual transverse magnetic (TM) mode by radiation. Measurements show cross-talks better than (31.1±0.4) dB in TE and better than (32.7±0.4) dB in TM mode over a 70-nm bandwidth limited by the characterization source. Optimal values of, respectively, (33.6±0.4) dB and (37.2±0.4) dB were measured at 1540 nm. At this wavelength, the insertion losses are, respectively, (6.0±0.4) dB and (5.5±0.4) dB in TE and TM modes while the function losses are (0.65±0.12) dB and (0.35±0.12) dB, respectively.
Keywords :
ion exchange; light polarisation; optical beam splitters; optical design techniques; optical fabrication; optical filters; optical glass; asymmetric Y-junction; broadband polarization splitters; filters; glass; insertion losses; ion exchange; ion-exchange; transverse electric; transverse magnetic; wavelength 1540 nm; wavelength 1550 nm; wavelength 70 nm; Broadband communication; Fabrication; Glass; Indexes; Optical losses; Optical polarization; Optical waveguides; Asymmetric Y-junction; integrated optics; ion-exchange; polarization splitter; radiative filtering;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2013.2286454
