Performance of europium aluminium doped polymer optical waveguide amplifier

Nur Najahatul Huda Saris,Osamu Mikami,Azura Hamzah,Takaki Ishigure,Sumiaty Ambran

doi:10.11591/eei.v8i4.1598

Abstract

In this paper, the graded index (GI) multimode rare-earth metal (RE-M) doped polymer optical waveguide amplifier has been prepared and tested optically. A 10-cm Europium Aluminum Benzyl Methacrylate ( was fabricated via a unique technique known as the “Mosquito Method” which utilizes a micro-dispenser machine. Optical gain from 75 to 150 µm circular core diameter waveguide of 13 wt.% concentration has been demonstrated and measured under forward pumping condition. The cladding monomer deployed in this research is Acrylate resin XCL01, which is a modified photocurable acrylate material. Fundamentally, -30 decibel (dBm) red light signal input and 23 dBm pump power of 532 nm green laser wavelength is implemented within the range of 580 to 640 nm optical amplification wavelength. A maximum gain of 12.96 dB at 617 nm wavelength has been obtained for a 100 µm core diameter of Eu-Al polymer optical waveguide. The effect of different coupler diameter for pumping and the comparison of insertion loss before and after amplification against the performance of the Eu-Al polymer waveguide amplifier are also studied. There exists an optimum core diameter of which the amplifier gain enhancement is at maximum value.

Highlights

Over the past few years, utilization of lanthanide groups such as Terbium ( ), Erbium ( ), Neodymium ( ) and Europium ( ) in lasers and amplifiers has grown substantially [1,2,3]
AND ANALYSIS the performance of rare earth metal (RE-M) using Europium Aluminum (Eu-Al) as gain medium is demonstrated with different core diameters
The idea of the proposed optical waveguide amplifier is based on the combination of planar waveguide and graded index (GI) optical fiber core, upon realizing the superiority of the GI multimode fiber in high-speed transmissions

Summary

Introduction

Over the past few years, utilization of lanthanide groups such as Terbium ( ), Erbium ( ), Neodymium ( ) and Europium ( ) in lasers and amplifiers has grown substantially [1,2,3]. This is generally due to the effective pumping system of lanthanide ions’ energy transfer process. Research activities related to polymer optical fiber (POF) with low-loss visible wavelength window for short distance communications have increased recently [5, 6]. Polymer generally exhibits low absorption losses in the visible wavelength region [9, 10]

Methods

Results

Conclusion