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Coupling characteristics of two uniform microfibers

A. Z. ZULKIFLI1, A. A. JASIM1, S. W. HARUN1,2,* , H. AROF1, K. DIMYATI3, H. AHMAD2

Affiliation

  1. Department of Electrical Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia
  2. Photonics Research Centre, University of Malaya, 50603 Kuala Lumpur, Malaysia
  3. Department Electrical and Electronic Engineering, Faculty of Engineering, National Defense University of Malaysia, Kem Sungai Besi, 57000 Kuala Lumpur, Malaysia

Abstract

The coupling characteristics of two uniform microfibers are experimentally demonstrated. The uniform microfiber is fabricated from a silica-based single mode fiber (SMF) using an oxy-butane flame-brushing method. With the reduction of the overlapping length, the optical power oscillation is more obvious due to the improvement in the coupling coefficient. The output spectrum is also shifted to a shorter wavelength as the overlapping length is reduced. It is observed that the average wavelength shift of 0.88 nm is obtained for every reduction of overlapping length in the order of 0.02 mm. These characteristics are useful for designing micro-scale photonic filters..

Keywords

Tapered fiber, Coupler, Flame brushing technique.

Citation

A. Z. ZULKIFLI, A. A. JASIM, S. W. HARUN, H. AROF, K. DIMYATI, H. AHMAD, Coupling characteristics of two uniform microfibers, Optoelectronics and Advanced Materials - Rapid Communications, 7, 3-4, March-April 2013, pp.244-247 (2013).

Submitted at: Jan. 5, 2013

Accepted at: April 11, 2013