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Fabrication and characterization of 2 × 2 microfiber coupler

A. A. JASIM1, M. Z. MUHAMMAD1, A. Z. ZULKIFLI1, F. AHMAD1, H. AHMAD2, S. W. HARUN1,3,*

Affiliation

  1. Department of Electrical Engineering, University of Malaya 50603 Kuala Lumpur, Malaysia
  2. Photonics Research Center, Department of Physics, Univers1ity of Malaya, 50603 Kuala Lumpur, Malaysia
  3. bPhotonics Research Center, Department of Physics, Univers1ity of Malaya, 50603 Kuala Lumpur, Malaysia

Abstract

A 2x2 microfiber coupler is demonstrated by laterally fusing and tapering two optical fibers using a flame-brushing technique. The coupler has an overlapping length of 40mm with a uniform waist of around 5 μm to achieve various coupling ratios. The coupler is also succesfully packaged using a perspex and some adhesive polymer to avoid temporal loss instability to the device. The throughput loss of the 50:50 microfiber coupler is quite acceptable which is around 8 dB between port 1 and port 3..

Keywords

Microfiber coupler, Flame brushing technique, Microfiber devices.

Citation

A. A. JASIM, M. Z. MUHAMMAD, A. Z. ZULKIFLI, F. AHMAD, H. AHMAD, S. W. HARUN, Fabrication and characterization of 2 × 2 microfiber coupler, Optoelectronics and Advanced Materials - Rapid Communications, 6, 1-2, January-February 2012, pp.7-11 (2012).

Submitted at: Nov. 28, 2011

Accepted at: Feb. 20, 2012