Signal Isolation enhancement via filter cascading in an optical module assembly for next generation PON (NGPON) applications

Authors

Marianne Therese Agcaoili ⋅ PH National Institute of Physics, University of the Philippines Diliman
Pearl Angel Francisco ⋅ PH National Institute of Physics, University of the Philippines Diliman
Rowenchell Lalas ⋅ PH National Institute of Physics, University of the Philippines Diliman
Glenn Lachica ⋅ PH National Institute of Physics, University of the Philippines Diliman

Abstract

The traditional centerpiece assembly in a typical 3-port module involves aligning a filter-coated lens surface to an anti-reflection coated lens surface. A proposed alternative is a filter-to-filter assembly wherein the aligned lenses are both filter- coated. This modified alignment scheme proves to enhance signal isolation while imparting an insertion loss lower than the allowed upper limit. This technique reduces target material consumption and shortens processing time since the expected module performance is achieved with a filter design consisting of significantly less coating layers. With the obtained isolation drop of 20dB, modules may be tailored for NGPON applications, i.e., with ≥45dB isolation.

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Issue

2011: Proceedings of the 29th Samahang Pisika ng Pilipinas National Physics Congress

Article ID

SPP2011-6C-3

Section

Condensed Matter and Materials Physics

Published

2011-10-24

How to Cite

[1]

MT Agcaoili, PA Francisco, R Lalas, and G Lachica, Signal Isolation enhancement via filter cascading in an optical module assembly for next generation PON (NGPON) applications, Proceedings of the Samahang Pisika ng Pilipinas 29, SPP2011-6C-3 (2011). URL: https://proceedings.spp-online.org/article/view/SPP2011-6C-3.