[8] CHESNOY J. Undersea fiber communication systems [M]. 2nd Edition, London: Academic Press, 2016.

[9] ITU-T. Optical interfaces for multichannel systems with optical amplifiers: G.692 [S]. Geneva: ITU, 1998.

[10] ITU-T. Characteristics of optically amplified optical fibre submarine cable systems: G.977 [S]. Geneva: ITU, 2015.

[11] ITU-T. Transverse compatible DWDM applications for repeatered optical fibre submarine cable systems: G.977.1[S]. Geneva: ITU, 2021.

[12] GRELLIER E, BONONI A. Quality parameter for coherent transmissions with Gaussian-distributed nonlinear noise [J]. Opt. Express, 2011, 19(13):12781-12788.

[13] POGGIOLINI P. The GN model of non-linear propagation in uncom-

[14] BOLSHTYANSKY M A, CAI J X, DAVIDSON C R, et al. Impact of spontaneous guided acoustic-wave Brillouin scattering on long-haul transmission [EB/OL]. [2019-03-09]. http://mr.crossref.org/iPage?doi=10.1364%2FOFC.2018.M4B.3.

[15] ELIZABETH R H. Subsea open cables: a practical perspective on the guidelines and gotchas[EB/OL]. [2021-08-04]. https://suboptic2019.com/

[16] ITU-T. Design guidelines for optical fibre submarine cable systems: G.Sup 41[S]. Geneva: ITU, 2018.

[17] ITU-T. Optical system design and engineering considerations: G.Sup 39[S]. Geneva: ITU, 2016.