Publications [#234582] of Warren S. Warren

Journal Articles

1. Rhee, JK; Kobayashi, H; Warren, WS, Optical frequency domain differential phase shift keying in femtosecond-pulse spectral modulation systems, Journal of Lightwave Technology, vol. 15 no. 12 (December, 1997), pp. 2214-2222, Institute of Electrical and Electronics Engineers (IEEE), ISSN 0733-8724 [doi]
   (last updated on 2026/01/14)

   Abstract:
   We propose a novel scheme of differential phase shift keying (DPSK) in the optical frequency domain. We take advantage of the intrinsic coherence among spectral elements derived by spectrum slicing a femtosecond optical pulse, introducing differential phase modulation between adjacent spectral elements with a femtosecond-pulse shaper. Detection of the differential phase is achieved by a Mach-Zehnder (MZ) or Sagnac interferometric receiver without requirement of any external phase reference.