OSA's Digital Library

Journal of Lightwave Technology

Journal of Lightwave Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 28, Iss. 18 — Sep. 15, 2010
  • pp: 2701–2707

Multipath Interference in Pulse-Pumped Fiber Raman Amplifiers: Analytical Approach

Vineetha Kalavally, Ivan D. Rukhlenko, Malin Premaratne, and Tin Win

Journal of Lightwave Technology, Vol. 28, Issue 18, pp. 2701-2707 (2010)


View Full Text Article

Acrobat PDF (278 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations
  • Export Citation/Save Click for help

Abstract

We present an analytical study of multipath interference (MPI) in pulse-pumped fiber Raman amplifiers (FRAs), caused by the internal reflections from the fiber facets and the effect of Rayleigh backscattering. For the first time, to the best of our knowledge, we derive a generalized expression for the MPI-induced noise on signal in counter-pumped FRAs. The obtained result takes into account four major sources of MPI, suggests their physically transparent classification, and enables us to predict the FRA's noise performance for an arbitrary modulated pump. Using the derived expression, we characterize the MPI-induced noise in a typical 80-km span of single-mode optical fiber. Specifically, we examine the noise enhancement in the pulse-pumped amplifier as compared to the amplifier operating in the continuous-wave regime, and analyze its dependence on the on-off gain and the pump-pulse duty cycle. We also estimate the impact of the MPI-induced noise transfer on the amplifier's performance, and discuss the optimal choice of pump modulation for different values of Q-penalty. The results of our study are important for the design optimization of FRAs with time-division-multiplexed pumping.

© 2010 IEEE

Citation
Vineetha Kalavally, Ivan D. Rukhlenko, Malin Premaratne, and Tin Win, "Multipath Interference in Pulse-Pumped Fiber Raman Amplifiers: Analytical Approach," J. Lightwave Technol. 28, 2701-2707 (2010)
http://www.opticsinfobase.org/jlt/abstract.cfm?URI=jlt-28-18-2701

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited