ICSE2010 Proc. 2010, Melaka, Malaysia Stimulation Effect of FBGs En route Four Wave Mixing Constructions Exploiting Photonic Crystal Fibre Presents Mohd Nizam Abdullah 1,2 , Abang Annuar Ehsan 1 , Member, IEEE, Mohd Nasir Zainal Abidin 2 and Abdul Rashid Zainal Abidin 2 1 Institute of Microengineering and Nanoelectronics (IMEN) Universiti Kebangsaan Malaysia (UKM) 43600 UKM Bangi, Selangor, Malaysia 2 National Metrology Laboratory SIRIM Berhad Lot PT4803 Bandar Baru Salak Tinggi 43900 Sepang, Selangor, Malaysia Email: mnizam@sirim.my Abstract- An experimental coordination was developed to evaluate Four Wave Mixing (FWM) progression. A 20 m photonic crystal fibre (PCF) zero dispersion at 1040 nm and a set of Fibre Bragg Gratings are engaged to stimulate pumped signals endow with FWM phenomenon. The set of FBGs consist three types of FBGs; A (1532.89 nm & reflectivity 88.4%), B (1530.47 nm & reflectivity 89.9%) & C(1535.04 nm & reflectivity 92.4%). I. INTRODUCTION THROUGH the years, conventional optical fibres have evolved into various figures since its introduction in the 70s [1]. Till mid 90s, PCF was first introduced with hexagonal lattice of air holes in a silica fibre with a solid or hollow core at the centre which guided light [2]. The exploration of PCF capability is widely endeavoured to discover the fruitful impacts towards various applications such telecommunications, medical science, sensors and many more [2]. Due to its structured, the non linearity efficiency can be realised for application as FWM and Raman Amplifier. The occurrence of non linear effects has the potential to stimulate multi wavelength process [3]. Previous work had shown the capability of PCF in producing multi wavelength by incorporating passive devices with effect of FWM [4,5]. Most of the work are done near zero dispersion of PCF [4,5]. Besides that, zero dispersion characteristic plays a vital role in producing FWM phenomenon [6]. In this paper, we report FWM phenomenon by configuration of PCF which has zero dispersion distant from the transmission window. II. EXPERIMENT The cavity of the set up is shown in Fig.1. A C-band EDFA (erbium doped fibre amplifier) configuration was developed which match 980 nm laser pumped to ensure the gain approximately at 1550 nm. It consists of 11m of erbium doped fibre, optical isolator at 35dB, 980/1550 WDM (wavelength Fig.1 The position of PCF and FBGs in cavity division multiplexer), coupler (10%/90%) at 1550 nm. In order to stimulate the EDFA, a stabilised current source with stability of 0.05% is set at 450 mA drives the pump laser diode at high energy. It able to produce high gain and reliable stability at 0.05% based on spectrum output. Then, a three door axis circulator is positioned after the EDFA. On the exit two, cascade arrangement of apodised FBGs A (1532.89 nm & reflectivity 88.4%), B (1530.47 nm & reflectivity 89.9%) & C (1535.04 nm & reflectivity 92.4%) is introduced to provide multi wavelength selections. A 20 m single mode highly non linear PCF is applied to stimulate FWM phenomenon. It has main characteristics such as zero dispersion at 1040 nm, non linear coefficient of 11/Wkm and mode field diameter of 4.00±.2μm. The 10% spectrum output from the cavity via a coupler (10/90) is captured by an optical spectrum analyser (OSA) with resolution of 0.05 nm. III. RESULTS & CONCLUSION Based from the cavity set-up, we determine to explore the FWM occurrence by means of non linear properties i.e PCF which known to have efficiency of non linear interactions at 363 978-1-4244-6609-2/10/$26.00 ©2010 IEEE