D. Hillerkuss, R. Schmogrow, T. Schellinger, M. Jordan, M. Winter, G. Huber, T. Vallaitis, R. Bonk, P. Kleinow, F. Frey, M. Roeger, S. Koenig, A. Ludwig, A. Marculescu, J. Li, M. Hoh, M. Dreschmann, J. Meyer, S. Ben Ezra, N. Narkis, B. Nebendahl, F. Parmigiani, P. Petropoulos, B. Resan, A. Oehler, K. Weingarten, T. Ellermeyer, J. Lutz, M. Moeller, M. Huebner, J. Becker, C. Koos, W. Freude, J. Leuthold, "26 Tbit ${\rm s}^{-1}$ line-rate
super-channel transmission utilizing all-optical fast Fourier
transform processing," Nature Photon. 5, 364-371 (2011).

D. Breuer, F. Geilhardt, R. Hülsermann, M. Kind, C. Lange, T. Monath, E. Weis, "Opportunities for next-generation optical
access," IEEE Commun. Mag. 49, 17-24 (2011).

P. Ossieur, C. Antony, A. M. Clarke, A. Naughton, H.-G. Krimmel, Y. Chang, C. Ford, A. Borghesani, D. G. Moodie, A. Poustie, R. Wyatt, B. Harmon, I. Lealman, G. Maxwell, D. Rogers, D. W. Smith, D. Nesset, R. P. Davey, P. D. Townsend, "A 135-km 8192-split carrier distributed DWDM-TDMA PON
with 2$\,\times\,$32$\,\times\,$10 Gb/s capacity," J. Lightw. Technol. 29, 463-474 (2011).

R. P. Giddings, J. M. Tang, "Experimental demonstration and optimisation of a
synchronous clock recovery technique for real-time end-to-end
optical OFDM transmission at 11.25 Gb/s over 25 km
SSMF," Opt. Exp. 19, 2831-2845 (2011).

N. Cvijetic, M.-F. Huang, E. Ip, Y. Shao, Y.-K.. Huang, M. Cvijetic, T. Wang, "1.92Tb/s coherent DWDM-OFDMA-PON with no high-speed
ONU-side electronics over 100km SSMF and 1:64 passive
split," Opt. Exp. 19, 24540-24545 (2011).

E. Hugues-Salas, R. P. Giddings, X. Q. Jin, J. L. Wei, X. Zheng, Y. Hong, C. Shu, J. M. Tang, "Real-time experimental demonstration of low-cost VCSEL
intensity-modulated 11.25 Gb/s optical OFDM signal transmission over
25 km PON systems," Opt. Exp. 19, 2979-2988 (2011).

R. Schmogrow, M. Winter, D. Hillerkuss, B. Nebendahl, S. Ben-Ezra, J. Meyer, M. Dreschmann, M. Huebner, J. Becker, C. Koos, W. Freude, J. Leuthold, "Real-time OFDM transmitter beyond 100
Gbit/s," Opt. Exp. 19, 12740-12749 (2011).

L. Zhang, X. Xin, B. Liu, Y. Wang, "Secure OFDM PON based on chaos
scrambling," IEEE Photon. Technol. Lett. 23, 998-1000 (2011).

X. Q. Jin, J. M. Tang, "Optical OFDM synchronization with symbol timing offset
and sampling clock offset compensation in real-time IMDD
systems," IEEE Photon. J. 3, 187-196 (2011).

L. Zhang, X. Xin, B. Liu, J. Yu, Q. Zhang, "A novel ECDM-OFDM-PON architecture for next-generation
optical access network," Opt. Exp. 18, 18347-18353 (2010).

R. P. Giddings, X. Q. Jin, E. Hugues-Salas, E. Giacoumidis, J. L. Wei, J. M. Tang, "Experimental demonstration of a record high 11.25 Gb/s
real-time optical OFDM transceiver supporting 25 km SMF end-to-end
transmission in simple IMDD systems," Opt. Exp. 18, 5541-5555 (2010).

D. Qian, N. Cvijetic, J. Hu, T. Wang, "108 Gb/s OFDMA-PON with polarization multiplexing and
direct detection," J. Lightw. Technol. 28, 484-493 (2010).

B. Charbonnier, N. Brochier, P. Chanclou, "Reflective polarisation independent Mach–Zehnder
modulator for FDMA/OFDMA PON," IEEE Electron. Lett. 46, 1682-1683 (2010).

N. Cvijetic, D. Qian, J. Hu, T. Wang, "Orthogonal frequency division multiple access PON
(OFDMA-PON) for colorless upstream transmission beyond 10
Gb/s," IEEE J. Sel. Areas Commun. 28, 781-790 (2010).

K. Roberts, D. Beckett, D. Boertjes, J. Berthold, C. Laperle, "100 G and beyond with digital coherent signal
processing," IEEE Commun. Mag. 48, 62-69 (2010).

N. Cvijetic, D. Qian, J. Hu, "100 Gb/s optical access based on orthogonal frequency
division multiplexing," IEEE Commun. Mag. 48, 70-77 (2010).

R.-J. Essiambre, G. Kramer, P. J. Winzer, G. J. Foschini, B. Goebel, "Capacity limits of optical fiber
networks," J. Lightw. Technol. 28, 662-701 (2010).

J. Vucic, C. Kottke, S. Nerreter, A. Buttner, K.-D. Langer, J. W. Walewski, "White light wireless transmission at $200^{+}$ Mb/s net data rate by use of discrete-multitone
modulation," IEEE Photon. Technol. Lett. 21, 1511-1513 (2009).

S. B. Weinstein, "The history of orthogonal frequency division
multiplexing," IEEE Commun. Mag. 47, 26-35 (2009).

C. Stevenson, G. Chouinard, Z. Lei, H. Wendong, S. Shellhammer, W. Caldwell, "IEEE 802.22: The first cognitive radio wireless
regional area network standard," IEEE Commun. Mag. 47, 130-138 (2009).

J. Armstrong, "OFDM for optical communications," J. Lightw. Technol. 27, 189-204 (2009).

S. L. Jansen, I. Morita, T. C. W. Schenk, H. Tanaka, "121.9-Gb/s PDM-OFDM transmission with 2-b/s/Hz
spectral efficiency over 1000 km of SSMF," J. Lightw. Technol. 27, 177-188 (2009).

A. Sano, E. Yamada, H. Masuda, E. Yamazaki, T. Kobayashi, E. Yoshida, Y. Miyamoto, R. Kudo, K. Ishihara, Y. Takatori, "No-guard-interval coherent optical OFDM for 100-Gb/s
long-haul WDM transmission," J. Lightw. Technol. 27, 3705-3713 (2009).

D. Qian, N. Cvijetic, J. Hu, T. Wang, "A novel OFDMA-PON architecture with source-free ONUs
for next-generation optical access networks," IEEE Photon. Technol. Lett. 21, 1265-1267 (2009).

X. Q. Jin, R. P. Giddings, J. M. Tang, "Real-time transmission of 3 Gb/s 16-QAM encoded
optical OFDM signals over 75 km SMFs with negative power
penalties," Opt. Exp. 17, 14574-14585 (2009).

Y. Benlachtar, P. M. Watts, R. Bouziane, P. Milder, D. Rangaraj, A. Cartolano, R. Koutsoyannis, J. C. Hoe, M. Püschel, M. Glick, R. I. Killey, "Generation of optical OFDM signals using 21.4 GS/s
real time digital signal processing," Opt. Exp. 17, 17658-17668 (2009).

T. N. Duong, N. Genay, M. Ouzzif, J. Le Masson, B. Charbonnier, P. Chanclou, J. C. Simon, "Adaptive loading algorithm implemented in AMOOFDM for
NG-PON system integrating cost-effective and low-bandwidth optical
devices," IEEE Photon. Technol. Lett. 21, 790-792 (2009).

C. W. Chow, C. H. Yeh, C. H. Wang, F. Y. Shih, S. Chi, "Rayleigh backscattering performance of OFDM-QAM in
carrier distributed passive optical networks," IEEE Photon. Technol. Lett. 20, 1848-1850 (2008).

N. Cvijetic, S. G. Wilson, D. Qian, "System outage probability due to PMD in high-speed
optical OFDM transmission," J. Lightw. Technol. 26, 2118-2127 (2008).

W. Shieh, H. Bao, Y. Tang, "Coherent optical OFDM: Theory and
design," Opt. Exp. 16, 841-859 (2008).

B. J. C. Schmidt, A. J. Lowery, J. Armstrong, "Experimental demonstrations of electronic dispersion
compensation for long haul transmission using direct-detection
optical OFDM," J. Lightw. Technol. 26, 196-203 (2008).

X. Q. Jin, J. M. Tang, P. S. Spencer, K. A. Shore, "Optimization of adaptively modulated optical OFDM
modems for multimode fiber-based local area
networks," J. Opt. Netw. 7, 198-214 (2008).

W. Shieh, Q. Yang, Y. Ma, "107 Gb/s coherent optical OFDM transmission over
1000-km SSMF fiber using orthogonal band
multiplexing," Opt. Exp. 16, 6378-6386 (2008).

A. J. Lowery, "Fiber nonlinearity pre- and post-compensation for
long-haul optical links using OFDM," Opt. Exp. 15, 12965-12970 (2007).

M. Morelli, C.-C. J. Kuo, M.-O. Pun, "Synchronization techniques for orthogonal frequency
division multiple access (OFDMA): A tutorial
review," Proc. IEEE 95, 1394-1427 (2007).

E. Ip, J. M. Kahn, "Digital equalization of chromatic dispersion and
polarization mode dispersion," J. Lightw. Technol. 25, 2033-2043 (2007).

K. Kitayama, X. Wang, N. Wada, "OCDMA over WDM PON—Solution path to
gigabit-symmetric FTTH," J. Lightw. Technol. 24, 1654-1662 (2006).

O. Gonzalez, S. Rodriguez, R. Perez-Jimenez, B. R. Mendoza, F. Delgado, "Adaptive OFDM system for multi-user communications
over the indoor wireless optical channel," Proc. Inst. Electr.
Eng.—Optoelectronics 153, 139-144 (2006).

J. M. Tang, P. M. Lane, K. A. Shore, "High-speed transmission of adaptively modulated
optical OFDM signals over multimode fibers using directly modulated
DFBs," J. Lightw. Technol. 24, 429-441 (2006).

I. B. Djordjevic, B. Vasic, "Orthogonal frequency division multiplexing for
high-speed optical transmission," Opt. Exp. 14, 3767-3775 (2006).

Y. H. Ma, P. L. So, E. Gunawan, "Performance analysis of OFDM systems for broadband
power line communications under impulsive noise and multipath
effects," IEEE Trans. Power Del. 20, 674-682 (2005).

A. Banerjee, Y. Park, F. Clarke, H. Song, S. Yang, G. Kramer, K. Kim, B. Mukherjee, "Wavelength-division-multiplexed passive optical
network (WDM-PON) technologies for broadband access: A
review," J. Opt. Netw. 4, 737-758 (2005).

D. Divanc, G. Li, H. Liu, "Computationally efficient bandwidth allocation and
power control for OFDMA," IEEE Trans. Wireless Commun. 2, 1150-1158 (2003).

R. W. Chang, "High-speed multichannel data transmission with
bandlimited orthogonal signals," Bell Syst. Tech. J. 45, 1775-1796 (1966).

R. W. Chang, "High-speed multichannel data transmission with
bandlimited orthogonal signals," Bell Syst. Tech. J. 45, 1775-1796 (1966).

S. B. Weinstein, "The history of orthogonal frequency division
multiplexing," IEEE Commun. Mag. 47, 26-35 (2009).

C. Stevenson, G. Chouinard, Z. Lei, H. Wendong, S. Shellhammer, W. Caldwell, "IEEE 802.22: The first cognitive radio wireless
regional area network standard," IEEE Commun. Mag. 47, 130-138 (2009).

K. Roberts, D. Beckett, D. Boertjes, J. Berthold, C. Laperle, "100 G and beyond with digital coherent signal
processing," IEEE Commun. Mag. 48, 62-69 (2010).

N. Cvijetic, D. Qian, J. Hu, "100 Gb/s optical access based on orthogonal frequency
division multiplexing," IEEE Commun. Mag. 48, 70-77 (2010).

D. Breuer, F. Geilhardt, R. Hülsermann, M. Kind, C. Lange, T. Monath, E. Weis, "Opportunities for next-generation optical
access," IEEE Commun. Mag. 49, 17-24 (2011).

B. Charbonnier, N. Brochier, P. Chanclou, "Reflective polarisation independent Mach–Zehnder
modulator for FDMA/OFDMA PON," IEEE Electron. Lett. 46, 1682-1683 (2010).

N. Cvijetic, D. Qian, J. Hu, T. Wang, "Orthogonal frequency division multiple access PON
(OFDMA-PON) for colorless upstream transmission beyond 10
Gb/s," IEEE J. Sel. Areas Commun. 28, 781-790 (2010).

X. Q. Jin, J. M. Tang, "Optical OFDM synchronization with symbol timing offset
and sampling clock offset compensation in real-time IMDD
systems," IEEE Photon. J. 3, 187-196 (2011).

T. N. Duong, N. Genay, M. Ouzzif, J. Le Masson, B. Charbonnier, P. Chanclou, J. C. Simon, "Adaptive loading algorithm implemented in AMOOFDM for
NG-PON system integrating cost-effective and low-bandwidth optical
devices," IEEE Photon. Technol. Lett. 21, 790-792 (2009).

D. Qian, N. Cvijetic, J. Hu, T. Wang, "A novel OFDMA-PON architecture with source-free ONUs
for next-generation optical access networks," IEEE Photon. Technol. Lett. 21, 1265-1267 (2009).

C. W. Chow, C. H. Yeh, C. H. Wang, F. Y. Shih, S. Chi, "Rayleigh backscattering performance of OFDM-QAM in
carrier distributed passive optical networks," IEEE Photon. Technol. Lett. 20, 1848-1850 (2008).

L. Zhang, X. Xin, B. Liu, Y. Wang, "Secure OFDM PON based on chaos
scrambling," IEEE Photon. Technol. Lett. 23, 998-1000 (2011).

J. Vucic, C. Kottke, S. Nerreter, A. Buttner, K.-D. Langer, J. W. Walewski, "White light wireless transmission at $200^{+}$ Mb/s net data rate by use of discrete-multitone
modulation," IEEE Photon. Technol. Lett. 21, 1511-1513 (2009).

Y. H. Ma, P. L. So, E. Gunawan, "Performance analysis of OFDM systems for broadband
power line communications under impulsive noise and multipath
effects," IEEE Trans. Power Del. 20, 674-682 (2005).

D. Divanc, G. Li, H. Liu, "Computationally efficient bandwidth allocation and
power control for OFDMA," IEEE Trans. Wireless Commun. 2, 1150-1158 (2003).

P. Ossieur, C. Antony, A. M. Clarke, A. Naughton, H.-G. Krimmel, Y. Chang, C. Ford, A. Borghesani, D. G. Moodie, A. Poustie, R. Wyatt, B. Harmon, I. Lealman, G. Maxwell, D. Rogers, D. W. Smith, D. Nesset, R. P. Davey, P. D. Townsend, "A 135-km 8192-split carrier distributed DWDM-TDMA PON
with 2$\,\times\,$32$\,\times\,$10 Gb/s capacity," J. Lightw. Technol. 29, 463-474 (2011).

K. Kitayama, X. Wang, N. Wada, "OCDMA over WDM PON—Solution path to
gigabit-symmetric FTTH," J. Lightw. Technol. 24, 1654-1662 (2006).

N. Cvijetic, S. G. Wilson, D. Qian, "System outage probability due to PMD in high-speed
optical OFDM transmission," J. Lightw. Technol. 26, 2118-2127 (2008).

D. Qian, N. Cvijetic, J. Hu, T. Wang, "108 Gb/s OFDMA-PON with polarization multiplexing and
direct detection," J. Lightw. Technol. 28, 484-493 (2010).

J. Armstrong, "OFDM for optical communications," J. Lightw. Technol. 27, 189-204 (2009).

S. L. Jansen, I. Morita, T. C. W. Schenk, H. Tanaka, "121.9-Gb/s PDM-OFDM transmission with 2-b/s/Hz
spectral efficiency over 1000 km of SSMF," J. Lightw. Technol. 27, 177-188 (2009).

B. J. C. Schmidt, A. J. Lowery, J. Armstrong, "Experimental demonstrations of electronic dispersion
compensation for long haul transmission using direct-detection
optical OFDM," J. Lightw. Technol. 26, 196-203 (2008).

J. M. Tang, P. M. Lane, K. A. Shore, "High-speed transmission of adaptively modulated
optical OFDM signals over multimode fibers using directly modulated
DFBs," J. Lightw. Technol. 24, 429-441 (2006).

A. Sano, E. Yamada, H. Masuda, E. Yamazaki, T. Kobayashi, E. Yoshida, Y. Miyamoto, R. Kudo, K. Ishihara, Y. Takatori, "No-guard-interval coherent optical OFDM for 100-Gb/s
long-haul WDM transmission," J. Lightw. Technol. 27, 3705-3713 (2009).

R.-J. Essiambre, G. Kramer, P. J. Winzer, G. J. Foschini, B. Goebel, "Capacity limits of optical fiber
networks," J. Lightw. Technol. 28, 662-701 (2010).

E. Ip, J. M. Kahn, "Digital equalization of chromatic dispersion and
polarization mode dispersion," J. Lightw. Technol. 25, 2033-2043 (2007).

X. Q. Jin, J. M. Tang, P. S. Spencer, K. A. Shore, "Optimization of adaptively modulated optical OFDM
modems for multimode fiber-based local area
networks," J. Opt. Netw. 7, 198-214 (2008).

A. Banerjee, Y. Park, F. Clarke, H. Song, S. Yang, G. Kramer, K. Kim, B. Mukherjee, "Wavelength-division-multiplexed passive optical
network (WDM-PON) technologies for broadband access: A
review," J. Opt. Netw. 4, 737-758 (2005).

D. Hillerkuss, R. Schmogrow, T. Schellinger, M. Jordan, M. Winter, G. Huber, T. Vallaitis, R. Bonk, P. Kleinow, F. Frey, M. Roeger, S. Koenig, A. Ludwig, A. Marculescu, J. Li, M. Hoh, M. Dreschmann, J. Meyer, S. Ben Ezra, N. Narkis, B. Nebendahl, F. Parmigiani, P. Petropoulos, B. Resan, A. Oehler, K. Weingarten, T. Ellermeyer, J. Lutz, M. Moeller, M. Huebner, J. Becker, C. Koos, W. Freude, J. Leuthold, "26 Tbit ${\rm s}^{-1}$ line-rate
super-channel transmission utilizing all-optical fast Fourier
transform processing," Nature Photon. 5, 364-371 (2011).

W. Shieh, H. Bao, Y. Tang, "Coherent optical OFDM: Theory and
design," Opt. Exp. 16, 841-859 (2008).

I. B. Djordjevic, B. Vasic, "Orthogonal frequency division multiplexing for
high-speed optical transmission," Opt. Exp. 14, 3767-3775 (2006).

W. Shieh, Q. Yang, Y. Ma, "107 Gb/s coherent optical OFDM transmission over
1000-km SSMF fiber using orthogonal band
multiplexing," Opt. Exp. 16, 6378-6386 (2008).

A. J. Lowery, "Fiber nonlinearity pre- and post-compensation for
long-haul optical links using OFDM," Opt. Exp. 15, 12965-12970 (2007).

R. P. Giddings, J. M. Tang, "Experimental demonstration and optimisation of a
synchronous clock recovery technique for real-time end-to-end
optical OFDM transmission at 11.25 Gb/s over 25 km
SSMF," Opt. Exp. 19, 2831-2845 (2011).

N. Cvijetic, M.-F. Huang, E. Ip, Y. Shao, Y.-K.. Huang, M. Cvijetic, T. Wang, "1.92Tb/s coherent DWDM-OFDMA-PON with no high-speed
ONU-side electronics over 100km SSMF and 1:64 passive
split," Opt. Exp. 19, 24540-24545 (2011).

L. Zhang, X. Xin, B. Liu, J. Yu, Q. Zhang, "A novel ECDM-OFDM-PON architecture for next-generation
optical access network," Opt. Exp. 18, 18347-18353 (2010).

R. Schmogrow, M. Winter, D. Hillerkuss, B. Nebendahl, S. Ben-Ezra, J. Meyer, M. Dreschmann, M. Huebner, J. Becker, C. Koos, W. Freude, J. Leuthold, "Real-time OFDM transmitter beyond 100
Gbit/s," Opt. Exp. 19, 12740-12749 (2011).

X. Q. Jin, R. P. Giddings, J. M. Tang, "Real-time transmission of 3 Gb/s 16-QAM encoded
optical OFDM signals over 75 km SMFs with negative power
penalties," Opt. Exp. 17, 14574-14585 (2009).

R. P. Giddings, X. Q. Jin, E. Hugues-Salas, E. Giacoumidis, J. L. Wei, J. M. Tang, "Experimental demonstration of a record high 11.25 Gb/s
real-time optical OFDM transceiver supporting 25 km SMF end-to-end
transmission in simple IMDD systems," Opt. Exp. 18, 5541-5555 (2010).

E. Hugues-Salas, R. P. Giddings, X. Q. Jin, J. L. Wei, X. Zheng, Y. Hong, C. Shu, J. M. Tang, "Real-time experimental demonstration of low-cost VCSEL
intensity-modulated 11.25 Gb/s optical OFDM signal transmission over
25 km PON systems," Opt. Exp. 19, 2979-2988 (2011).

Y. Benlachtar, P. M. Watts, R. Bouziane, P. Milder, D. Rangaraj, A. Cartolano, R. Koutsoyannis, J. C. Hoe, M. Püschel, M. Glick, R. I. Killey, "Generation of optical OFDM signals using 21.4 GS/s
real time digital signal processing," Opt. Exp. 17, 17658-17668 (2009).

M. Morelli, C.-C. J. Kuo, M.-O. Pun, "Synchronization techniques for orthogonal frequency
division multiple access (OFDMA): A tutorial
review," Proc. IEEE 95, 1394-1427 (2007).

O. Gonzalez, S. Rodriguez, R. Perez-Jimenez, B. R. Mendoza, F. Delgado, "Adaptive OFDM system for multi-user communications
over the indoor wireless optical channel," Proc. Inst. Electr.
Eng.—Optoelectronics 153, 139-144 (2006).

N. Cvijetic, D. Qian, T. Wang, "10 Gb/s free-space optical transmission using
OFDM," IEEE/OSA Opt. Fiber Commun. Conf. San DiegoCA (2008) Paper OThD2.

N. Yoshimoto, "The role of advanced EPON systems and their related
technologies for sustainable growth of telecom
industry," Asia Commun. Photon. Conf. ShanghaiChina (2010).

J. Kani, "Next-generation PONs: An operator's
view," presented at the Eur. Conf. Opt. Commun. ViennaAustria (2009) Paper 5.7.4.

P. Iannone, K. Reichmann, "Optical access beyond 10 Gb/s PON," Eur. Conf. Opt. Commun. TorinoItaly (2010) Paper Tu.B.3.1.

P. Iannone, K. Reichmann, C. Brinton, J. Nakagawa, T. Cusick, M. Kimber, C. R. Doerr, L. Buhl, M. Cappuzzo, E. Chen, L. Gomez, J. Johnson, A. Kanan, J. Lentz, F. Chang, B. Pálsdóttir, T. Tokle, L. Spiekman, "Bi-directionally amplified extended reach 40 Gb/s
CWDM-TDM PON with burst-mode upstream
transmission," IEEE/OSA Opt. Fiber Commun. Conf. Los AngelesCA (2011) Paper PDPD6.

S. Smolorz, H. Rohde, E. Gottwald, D. W. Smith, A. Poustie, "Demonstration of a coherent UDWDM-PON with real-time
processing," IEEE/OSA Opt. Fiber Commun. Conf. Los AngelesCA (2011) Paper PDPD4.

T. J. Xia, G. Wellbrock, B. Basch, S. Kotrla, W. Lee, T. Tajima, K. Fukuchi, M. Cvijetic, J. Sugg, Y. Ma, B. Turner, C. Cole, C. Urricariet, "End-to-end native IP data 100 G single carrier real
time DSP coherent detection transport over 1520-km field deployed
fiber," IEEE/OSA Opt. Fiber Commun. Conf. San DiegoCA (2010).

M. Birk, P. Gerard, R. Curto, L. Nelson, X. Zhou, P. Magill, T. J. Schmidt, C. Malouin, B. Zhang, E. Ibragimov, S. Khatana, M. Glavanovic, R. Lofland, R. Marcoccia, G. Nicholl, M. Nowell, F. Forghieri, "Field trial of a real-time, single wavelength,
coherent 100 Gbit/s PM-QPSK channel upgrade of an installed 1800 km
link," IEEE/OSA Opt. Fiber Commun. Conf. San DiegoCA (2010) Paper PDPD1.

OIF 100 G Ultra Long Haul DWDM Framework
Document (2009).

S. L. Jansen, I. Morita, K. Forozesh, S. Randel, D. van den Borne, H. Tanaka, "Optical OFDM: A hype or is it for
real?," Eur. Conf. Opt. Commun. BrusselsBelgium (2008) Paper Mo.3.E.3.

"Cisco® Visual Networking Index
(VNI)," Entering the Zettabyte Era White Paper (2011).

M. Cvijetic, Optical Transmission Systems Engineering (Artech House, 2004).

E. Ip, J. M. Kahn, "Increasing optical fiber transmission capacity beyond
next-generation systems," Proc. IEEE LEOS AcapulcoMexico Paper WX1.

N. Cvijetic, L. Xu, T. Wang, "Adaptive PMD compensation using OFDM in long-haul 10
Gb/s DWDM systems," IEEE/OSA Opt. Fiber Commun. Conf. AnaheimCA (2007) Paper OTuA5.

A. J. Lowery, L. Du, J. Armstrong, "Orthogonal frequency division multiplexing for
adaptive dispersion compensation in long haul WDM
systems," IEEE/OSA Opt. Fiber Commun. Conf. AnaheimCA (2006) Paper PDP39.

D. Qian, J. Hu, J. Yu, P. N. Ji, L. Xu, T. Wang, M. Cvijetic, T. Kusano, "Experimental demonstration of a novel OFDM-A based 10
Gb/s PON architecture," Eur. Conf. Opt. Commun. Conf. BerlinGermany (2007) Paper 5.4.2.

T. Duong, N. Genay, P. Chanclou, B. Charbonnier, A. Pizzinat, R. Brenot, "Experimental demonstration of 10 Gbit/s upstream
transmission by remote modulation of 1 GHz RSOA using adaptively
modulated optical OFDM for WDM-PON single fiber
architecture," Eur. Conf. Opt. Commun. Conf. BrusselsBelgium (2008) Paper Th. 3.F. 1.

Y. K. Huang, D. Qian, R. E. Saperstein, P. N. Ji, N. Cvijetic, L. Xu, T. Wang, "Dual-polarization 2$\,\times\,$2 IFFT/FFT
optical signal processing for 100-Gb/s QPSK-PDM all-optical
OFDM," IEEE/OSA Opt. Fiber Commun. Conf. San DiegoCA (2009) Paper OTuM4.

N. Cvijetic, M.-F. Huang, E. Ip, Y. Huang, D. Qian, T. Wang, "1.2 Tb/s symmetric WDM-OFDMA-PON over 90 km straight
SSMF and 1:32 passive split with digitally-selective ONUs and
coherent receiver OLT," IEEE/OSA Opt. Fiber Commun. Conf. Los AngelesCA (2011) Paper PDPD7.

D. Qian, M.-F. Huang, E. Ip, Y.-K. Huang, Y. Shao, J. Hu, T. Wang, "101.7-Tb/s (370$\,\times\,$294-Gb/s)
PDM-128QAM-OFDM transmission over 3$\,\times\,$55-km SSMF using pilot-based phase noise
mitigation," IEEE/OSA Opt. Fiber Commun. Conf. Los AngelesCA (2011) Paper PDPB5.

D. Qian, N. Cvijetic, Y. K. Huang, J. Yu, T. Wang, "100 km long reach upstream 36 Gb/s-OFDMA-PON over a
single wavelength with source-free ONUs," Eur. Conf. Opt. Commun. Conf. ViennaAustria (2009) Paper 8.5.1.

D. Qian, J. Hu, P. N. Ji, T. Wang, M. Cvijetic, "10 Gb/s OFDMA-PON for delivery of heterogeneous
services," IEEE/OSA Opt. Fiber Commun. Conf. San DiegoCA (2008) Paper OWH4.

Z. Wang, Y.-K. Wang, E. Ip, P. R. Prucnal, T. Wang, "Performance investigation of polarization-multiplexed
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