Flexible transport at 10-Gb/s from 0 to 675 km (11,500 ps/nm) using a chirp-managed laser, no DCF, and a dynamically adjustable dispersion-compensating receiver

Chandrasekhar, S.; Doerr, C.R.; Buhl, L. L.; Mahgerefteh, Daniel; Matsui, Yasuhiro; Johnson, Brad; Liao, Chih-Yu; Zheng, Xuqiang; McCallion, K.; Fan, Z.F.; Tayebati, P.

doi:10.1109/ofc.2005.193208

Cited by 26 publications

(8 citation statements)

References 2 publications

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“…33 The CML technique has been applied in 10-Gbit/s data links with 250-km transmission over SMF without dispersion compensation 34 and 675-km transmission using tunable optical and electronic dispersion compensating modules at the receiver. 35 …”

Section: Chirp-managed Lasermentioning

confidence: 99%

Universal transmitter for wireless and optical access converged networks

Küppers

2013

Optical Metro Networks and Short-Haul Systems VI

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The integration of ultra-wideband (UWB)-over-fiber into passive optical network (PON) is of great interest as it benefits the high bandwidth capability from optical network technologies and the high flexibility from wireless network technologies. The later can only be done with a reasonable cost when a universal optical transmitter, which is capable of generation both UWB and PON signals, is available. Direct modulation of semiconductor laser was demonstrated to be suitable for high bit-rate PON systems, however the generation of UWB signals by this technique is still challenging. Using the chirp properties of directly modulated semiconductor lasers, UWB signals are generated. Different UWB signal waveforms and polarities are obtained. The received electrical spectra conform to the requirements of indoor UWB systems.

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Section: Chirp-managed Lasermentioning

confidence: 99%

Universal transmitter for wireless and optical access converged networks

Küppers

2013

Optical Metro Networks and Short-Haul Systems VI

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“…The reach of the tunable CML can be extended by the use of an MLSE-based EDC receiver [9], however, which has much higher power consumption and more complexity. Here we showed that the transmission of CML can be extended up to 300 km with a simple FFE/DFE EDC structure designed for compensating multi-mode fiber dispersion (Vitesse VSC8240).…”

Section: Transmissionmentioning

confidence: 99%

Performance demonstration of 300-km dispersion uncompensated transmission using tunable chirp-managed laser and EDC integratable into small-form-factor MSAs

Zheng

McCallion

Mahgerefteh

et al. 2008

Optical Transmission, Switching, and Subsystems VI

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We demonstrate 300-km transmission of 10Gb/s data over SMF-28 fiber without DCF using a 4-channel tunable chirp managed laser and EDC chip at the receiver, which can fit into hot pluggable XFP modules. IntroductionThe recent increase in number of populated 10 Gb/s WDM channels in metro and regional networks has increased demand for tunable, small footprint and low power consumption transmitters in order to reduce costs of inventory management and simplify network complexity. Concurrently the upgrade of WDM systems from 2.5 Gb/s to 10 Gb/s for metro networks spanning up to 200km has benefited from dispersion tolerant transmitter technologies such as optical duobinary [1] and chirp managed laser [2], since they eliminate dispersion compensation modules. Tunable externally modulated LiNbO 3 duobinary transmitters can reach 200 km in standard single-mode fiber (SMF) at 1550 nm window but are not suitable for XFP transceivers because they are too bulky and too power hungry. Compact multiple quantum-well InP Mach-Zehnder (MZ) modulator tunable transmitters are promising because of their smaller size. They can reach 100 km using standard laser drivers [3] and 200 km using the duobinary configuration [4]. However, adding a second high performance InP MZ chip will increase the cost and complexity of the module. Furthermore, the additional insertion loss of the InP MZ and the drive voltage requirements may be prohibitive in many applications. Chirp managed laser (CML) provides high optical output power, long transmission distance in standard single-mode fibers. In addition, this new transmitter requires a low driving voltage and, by eliminating the external modulator offers a reduced footprint, which fits into a small form factor XFP TOSA (Transmitter Optical Sub-Assembly) package.In the receive side, the last several years have witnessed the introduction and commercialization of FFE/DFEbased EDC techniques for intersymbol interference (ISI) mitigation in optical networks [5]. The FFE (feed-forward equalizer) combined with DFE (decision-feedback equalizer) realized within one IC provides a rational balance between good performance and additional aspects that have to be considered for modular applications: i.e., size, power consumption and cost. In addition, the FFE/DFE based EDC receivers have been implemented with a "setand-forget" type of self-adaptive algorithm to avoid any costly system adjustments. Being low power, small size and self-adaptive, the EDC receiver is easily embedded in small-form MSAs such as hot pluggable XFP transceivers, Xenpak/X2 or small-form-factor 300-pin transponders for enhanced system performance. Currently the EDC technology has started volume deployment largely in the enterprise area, and will soon enter into the metro, regional and long-haul networks [6][7].In this paper, we demonstrate a 4-channel tunable TOSA module based on CML technology with +1 to +3 dBm average output power. Error-free transmission performance at 10.7 Gb/s up to 200 km without EDC or optical dispersion compensation is ...

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“…Alternate transmitter modulation formats [3,4,11] compatible with direct detection have shown promise for applications <250 km where a significant ROSNR penalty is allocated to CD. Formats requiring differential phase or coherent detection significantly increase the transmitter and receiver cost and are not typically deployed at 1OGbit/s.…”

Section: Alternate Transmitter Modulationmentioning

confidence: 99%