The quality of transmitted signal is easy to be impacted due to the fiber Kerr nonlinearity, which results in the difficulty in increasing transmission capacity and speed of single mode fiber (SMF) based optical fiber communication systems. However, a new research by University of California at San Diego (UCSD) has shown that the technology based on optical frequency comb (OFC) combined with digital signal processing can improve the transmission performance significantly. This manifests that this OFC-based technology can be treated as a breakthrough of the nonlinear Shannon limit. This paper mainly relates to the topic of OFC, including the definition, generation methods, typical applications in information and communication systems, and the OFC-based crossed applications in other related physical scientific fields. Meanwhile, the trends of OFC technology have also been discussed.
LI Jianping
,
LI Zhaohui
. Breakthrough of nonlinear Shannon limit in optical fiber communication systems: Applications and trends of optical frequency comb[J]. Science & Technology Review, 2016
, 34(16)
: 108
-111
.
DOI: 10.3981/j.issn.1000-7857.2016.16.013
[1] Randel S, Corteselli S, Badini D, et al. First real-time coherent MIMO-DSP for six coupled mode transmission[C]//Proceedings of IEEE Photonics Conference (IPC). Virginia, USA:IEEE, 2015:1-2.
[2] Temprana E, Myslivets E, Kuo B, et al. Overcoming Kerr-induced capacitylimit in optical fiber transmission[J]. Science, 2015, 348(6242):1445-1448.
[3] Temprana E, Alic N, Kuo B, et al. Beating the nonlinear capacity limit[J]. Optics & Photonics News, 2016, 27(3):30-37.
[4] Pfeifle J, Brasch V, Lauermann M, et al. Coherent terabit communications withmicroresonator Kerr frequency combs[J]. Nature Photonics, 2014, 8:375-380.
[5] Ataie V, Esman D, Kuo B, et al.,Subnoise detection of a fast random event[J]. Science, 2015, 350(6266):1343-1346.
[6] Newbury N. Searching for applications witha fine-tooth comb[J]. Nature Photonics, 2011, 5(4):186-188.
[7] Liang W, Eliyahu D, Ilchenko V, et al. High spectral purity Kerr frequency comb radio frequency photonic oscillator[J]. Nature Communications, 2015, 6(7957):1-8.
[8] Yi X, VahalaK, Li J, et al. Demonstration of a near-IR line-referenced electro-optical laser frequency comb for precision radial velocity measurements in astronomy[J]. Nature Communications, 2015, 7(10436):1-9.
[9] BaoY, Yi X, Li Z, et al. A digitally generated ultrafine optical frequency comb for spectral measurements with 0.01 pm resolution and 0.7[micro]s re-sponse time[J]. Light:Science & Applications, 2015, 4(e300):1-7.
