Impact of Adaptive-Rate Transponders and Fiber Attributes on the Achievable Capacity

Sergejs Makovejs; Carsten Behrens; Ralf-Peter Braun; Sergey Ten; Christopher Towery; Ioannis Roudas; Konstantin Koreshkov; Torsten Nath; Andreas Gladisch

doi:10.1364/JOCN.7.000172

Journal of Optical Communications and Networking
Vol. 7,
Issue 3,
pp. 172-175
(2015)
•https://doi.org/10.1364/JOCN.7.000172

Impact of Adaptive-Rate Transponders and Fiber Attributes on the Achievable Capacity

Sergejs Makovejs, Carsten Behrens, Ralf-Peter Braun, Sergey Ten, Christopher Towery, Ioannis Roudas, Konstantin Koreshkov, Torsten Nath, and Andreas Gladisch

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Sergejs Makovejs, Carsten Behrens, Ralf-Peter Braun, Sergey Ten, Christopher Towery, Ioannis Roudas, Konstantin Koreshkov, Torsten Nath, and Andreas Gladisch, "Impact of Adaptive-Rate Transponders and Fiber Attributes on the Achievable Capacity," J. Opt. Commun. Netw. 7, 172-175 (2015)

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Abstract

We use the analytical Gaussian noise model to assess the achievable capacity over a fully transparent network with 18 nodes and 26 physical connections. By applying a network-centric approach, we show that the use of adaptive modulation in combination with ultralow loss fiber can provide an increase in the achievable capacity. The use of ultralow loss, large effective area fibers can allow for further capacity increase.

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	Legacy Fiber	SMF-28 ULL Fiber	Vascade EX2000 Fiber
Attenuation (dB/km)	0.25	0.165	0.159
$A_{eff}$ ( ${μm}^{2}$ )	82	82	112
$n_{2}$ ( $m^{2} / W$ )	$2.3 \times 10^{- 20}$	$2.1 \times 10^{- 20}$	$2.1 \times 10^{- 20}$
Gamma (1/W/km)	1.14	1.04	0.76
Dispersion (ps/nm/km)	17	17	20.3

	PM-QPSK	PM-8QAM	PM-16QAM	PM-32QAM	PM-64QAM	PM-128QAM	PM-256QAM
Legacy fiber	2720	1120	480	240	80	0	0
SMF-28 ULL fiber	6160	2640	1200	560	240	80	0
Vascade EX2000 fiber	8560	3680	1680	800	400	160	80

	PM-8QAM	PM-16QAM	PM-32QAM	PM-64QAM	PM-128QAM	PM-256QAM	PM-512QAM
Legacy fiber	3280	1520	720	360	160	80	40
SMF-28 ULL fiber	4840	2240	1080	520	240	120	40
Vascade EX2000 fiber	6440	3000	1440	680	320	160	80

	PM-BPSK	PM-QPSK	PM-8QAM	PM-16QAM	PM-32QAM	PM-64QAM
Legacy fiber	2160	720	240	120	0	0
SMF-28 ULL fiber	7680	2520	1080	480	240	120
Vascade EX2000 fiber	11,160	3720	1560	720	360	120

	Legacy Fiber (%)	SMF-28 ULL Fiber (%)	Vascade EX2000 Fiber (%)
$80 km \to 40 km$	$+ 46$	$+ 21$	$+ 17 %$
$80 km \to 120 km$	$- 48$	$- 26$	$- 23 %$

Impact of Adaptive-Rate Transponders and Fiber Attributes on the Achievable Capacity

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