Title :
Tunable and switchable optical bandpass filters based on phase-shifted linear chirped fiber Bragg gratings
Author :
Li, S.Y. ; Ngo, N.Q. ; Tjin, S.C. ; Shum, P. ; Zhang, J.
Author_Institution :
Photonics Res. Center, Nanyang Technol. Univ., Singapore
Abstract :
In this report, we present a novel tunable optical bandpass filters based on thermal induced phase-shifted linear chirped fiber Bragg gratings with ∼0.15 nm bandwidth, ∼15 nm tuning range and larger than 25 dB rejection ratio. As a bandpass filter, it improve the transmission characteristics of phase-shifted FBG, such as bandwidth and Lorentzian shape. We are working on improve the insertion loss and the ripple in the top of the filter.
Keywords :
Bragg gratings; band-pass filters; optical fibre filters; optical fibre losses; optical switches; optical tuning; Lorentzian shape; insertion loss; optical bandpass filters; optical switching; optical tuning; phase-shifted linear chirped fiber Bragg gratings; transmission characteristics; Band pass filters; Bandwidth; Bragg gratings; Fiber gratings; Insertion loss; Optical filters; Optical sensors; Propagation losses; Thermal resistance; Wires;
Conference_Titel :
Lasers and Electro-Optics, 2003. CLEO/Pacific Rim 2003. The 5th Pacific Rim Conference on
Print_ISBN :
0-7803-7766-4
DOI :
10.1109/CLEOPR.2003.1274663
