Tunable Optical Dispersion Compensator Based on Power Splitting Between Two Dispersive Media
2010 (English)In: Journal of Lightwave Technology, ISSN 0733-8724, E-ISSN 1558-2213, Vol. 28, no 8, 1164-1175 p.Article in journal (Refereed) Published
In this paper, we propose and experimentally demonstrate a novel tunable optical dispersion compensator (TODC). Dispersion compensation is achieved by splitting the input signal between two dispersive media and adding the resulting signals thereafter. Tunable compensation is attained by controlling the power splitting ratio of the input signal between both dispersive media. The frequency response of the TODC is theoretically assessed considering signal addition in the optical and electrical domains. The latter case is enabled by using optical single side-band (OSSB) modulation, which allows preserving the phase information of dispersive media output signals after direct detection. This is the only case experimentally tested, since it avoids stability problems related with coherent addition of optical signals. A TODC with a tuning range of -340 to 0 ps/nm was designed and experimentally assessed for a 40 Gb/s nonreturn-to-zero OSSB signal. The tunable power splitter consisted of an automatic polarization controller and a polarization beam splitter, which offered a tuning time lower than 150 mu s. A bit error rate lower than 10(-8) was measured on the entire compensation range with a maximum power penalty of 3.3 dB relatively to an SSB signal in back-to-back.
Place, publisher, year, edition, pages
2010. Vol. 28, no 8, 1164-1175 p.
Chromatic dispersion (CD), optical communication systems, single sideband (SSB), tunable dispersion compensation
Atom and Molecular Physics and Optics Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:kth:diva-28431DOI: 10.1109/JLT.2010.2042031ISI: 000275851400001ScopusID: 2-s2.0-77949885165OAI: oai:DiVA.org:kth-28431DiVA: diva2:388381
QC 201101172011-01-172011-01-142011-01-17Bibliographically approved