40-Gb/s Transmission over 100m Graded-Index Plastic Optical Fiber based on Discrete Multitone Modulation

Abstract

. (2009). 40-Gb/s transmission over 100m graded-index plastic optical fiber based on discrete multitone modulation. In Conference on Optical Fiber Communication -incudes post deadline papers, 2009. OFC 2009, 22-26 March 2009. Piscataway: Institute of Electrical and Electronics Engineers (IEEE). General rightsCopyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.• Users may download and print one copy of any publication from the public portal for the purpose of private study or research.• You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal ? Take down policyIf you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim. Abstract: Spectral-efficient 40-Gb/s discrete multitone transmission over 100m of graded-index plastic optical fiber is experimentally demonstrated by intensity-modulation of a 10-GHz DFBlaser (1302nm) and direct-detection with a 25-µm large diameter photodetector.

Robust Transmission of 29-Gb/s OFDM Signal Over 1-km OM1 MMF Under Center Launching

“…However, optimization of the fusion-splicing condition is needed to properly expand the core of the SMF such that the input beam profile can match the mode field distribution of the MMF's fundamental mode. Due to its high spectral efficiency and strong resilience to dispersion, optical orthogonal frequency-division multiplexing (OFDM) is a strong candidate for future high speed transmission over MMFs [10], [11]. The modal dispersion induced by the unwanted higher-order modes in conventional center launching can be readily tolerated by the optical OFDM signal, thus mode filtering at the receiver side can be removed and the corresponding modal noise can be avoided.…”

“…The modal dispersion induced by the unwanted higher-order modes in conventional center launching can be readily tolerated by the optical OFDM signal, thus mode filtering at the receiver side can be removed and the corresponding modal noise can be avoided. 40-Gb/s and 24-Gb/s OFDM transmissions have been demonstrated over 100-m GI-POF [10], and 730-m OM3 MMF [11], respectively, with sophisticated bit-and-power loading (BPL). However, the robustness of OFDM transmission over MMFs has not been studied yet.…”

“…The MZM had a modulation bandwidth of approximately 12 GHz and was originally specified for 10-Gb/s OOK modulation. In this proof-ofconcept experiment, we used external modulation instead of direct modulation as in [10]- [12], due to the lack of a 10-GHz directly modulated laser (DML). It has been theoretically confirmed that under optimum operating conditions the influence of optical nonlinearity of a DML is negligible on 10 the OFDM transmission over MMF short links [13].…”

“…In this proof-ofconcept experiment, we used external modulation instead of direct modulation as in [10]- [12], due to the lack of a 10-GHz directly modulated laser (DML). It has been theoretically confirmed that under optimum operating conditions the influence of optical nonlinearity of a DML is negligible on 10 the OFDM transmission over MMF short links [13]. The MZM was biased at its quadrature point to generate a strong optical carrier in the optical OFDM signal such that after detection the beating between the optical carrier and subcarriers (signal source) was much stronger than the beating among subcarriers (noise source).…”

Real-time implementation of optical OFDM transmitters and receivers for practical end-to-end optical transmission systems

“…Since then, extensive investigations of OOFDM transceivers of various configurations have been reported in long-haul [4,5], MANs [6] and LANs [7]. However, all experimental works published so far have been undertaken using non-real-time signal processing approaches, which do not consider the limitations imposed by the precision and speed of practical digital signal processing (DSP) hardware.…”