Coupling ratio tuning of direct UV-written X-couplers for cascaded power splitters in WDM networks

Abstract

We present a study of low polarisation sensitivity 2 degrees X-couplers with 20% coupling ratio tuning via refractive index asymmetry, attaining 50:50 power splitting at 1550nm. The device has less than 5% coupling ratio variation over 30nm in the C-band and <0.7dB polarisation dependent loss.

Electronics Letters (2006) Vol.42(24) pp.1397-1398

doi: 10.1049/el:20062199

Publisher′s URL: http://ieeexplore.ieee.org/xpls/abs_all.jsp?isnumber=4027897&arnumber=4027913&count=38&index=15

Click here to download an Acrobat (.pdf) version of the paper.