Submitted on: 21 October 1999.
Revised on: 07 February 2000.
Accepted on: 06 March 2000.
___________________FIBER AND INTEGRATED OPTICS---TAYLOR & FRANCIS INC
Submitted on: 03 December 2011.
Revised on: 09 January 2012.
Accepted on: 25 February 2012.
___________________FIBER AND INTEGRATED OPTICS---TAYLOR & FRANCIS INC
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Submitted on: 22 February 2004.
Revised on: 31 March 2004.
Accepted on: 09 May 2004.
___________________FIBER AND INTEGRATED OPTICS---TAYLOR & FRANCIS INC
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