A procedure based on the variational method is presented for the analysis of optical fibers with arbitrary gain or loss profiles. The procedure is validated by comparison with earlier reported results for a step gain profile. The use of the procedure for arbitrary profiles is illustrated on typical gain profiles of a fiber used in amplifiers.
© 1993 Optical Society of America
Original Manuscript: February 4, 1993
Published: December 15, 1993
Enakshi K. Sharma, Mukesh P. Singh, and Anurag Sharma, "Variational analysis of optical fibers with loss or gain," Opt. Lett. 18, 2096-2098 (1993)