107-Gb/s full-ETDM transmission over field installed fiber using vestigial sideband modulation

Abstract

107-Gb/s full-ETDM transmission is shown over a 160-km field installed fiber link. A high tolerance towards narrowband optical filtering is demonstrated using vestigial sideband modulation to minimize the spectral width.

100 Gb/s DQPSK field trial: Live video transmission over an operating LambdaXtreme® network

“…Two field experiments employing binary OOK at 100 Gb/s were demonstrated over field-installed fiber that was neither part of a commercial system installation nor carrying live commercial traffic. In a collaborative effort between AT&T Labs and Siemens, 100 Gb/s transmission over 160 km was demonstrated in the U.S. between Asbury Park and Little Egg Harbor, New Jersey [22]. The system consisted of two 80 km links of nonzero dispersion-shifted fiber (NZDSF) fiber connected in a loop-back manner; transmitter and receiver were collocated.…”

“…The experiment used coherent detection and offline processing to determine the BER performance of the system using standard 50 GHz channel spacing [54]. Table II compares results from serial transport 100 Gb/s field experiments and trials including those of Siemens, AT&T, and others [22]; Ciena and Cal Tech [6]; Nokia Siemens and Verizon [54]; and Alcatel-Lucent and Verizon [51] in the United States, and Alcatel-Lucent and Deutsch Telecom in Germany [35]. At the time of the trial reported here, direct detection of DQPSK was the preferred method to achieve real time transmission of video signals in a system designed for 100 GHz as well as asymmetrically allocated 50 GHz channel spacings.…”

Optical VSB Filtering of 12.5-GHz Spaced 64 × 12.4 Gb/s WDM Channels Using a Pair of Fabry-Perot Filters

“…Optical vestigial sideband (VSB) filtering is a useful method for optical transmission systems to increase spectral efficiencies and transmission distances [1][2][3][4][5][6][7][8][9]. It carves out one of the sidebands from a modulated optical channel using narrow optical filters which will be called VSB filters here.…”

“…This property is important to reduce the cost when the channel number is large. Typical VSB filters reported to date are Mach-Zehnder filters [1,2], fiber-Bragg gratings [3,4], optical band-pass filters [5][6][7], WDM demultiplexers [8], and optical interleavers [9]. The bit rate of [1] is 6 Gb/s.…”

Polarization-Insensitive 640 Gb/s Demultiplexing Based on Four Wave Mixing in a Polarization-Maintaining Fibre Loop

“…A high-speed TDM signal can be demultiplexed to low-speed signals by electrical TDM (ETDM) and optical TDM (OTDM). Currently, 107 Gb/s demultiplexing based on an integrated ETDM receiver is the state-of-the-art [3]- [5]. However, it will be very difficult to realize the ETDM demultiplexing above 160 Gb/s in the near future.…”