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Interferometric conversion of laser phase noise to intensity noise by single-mode fibre-optic components

Interferometric conversion of laser phase noise to intensity noise by single-mode fibre-optic components

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© The Institution of Electrical Engineers
Published

The intrinsic phase noise of semiconductor lasers is interferometrically converted into high levels of intensity noise by reflections at single-mode connectors and other fibre-optic components. This noise can have significant adverse impact on both direct detection and coherent transmission systems, causing bit-error-rate floors in extreme cases.

Inspec keywords: optical communication equipment; electron device noise; semiconductor junction lasers; optical fibres; optical couplers

Other keywords: interferometric conversion; single-mode connectors; single-mode fibre-optic components; bit-error-rate floors; intensity noise; laser phase noise

Subjects: Optical waveguides; Fibre optics; Semiconductor lasers

References

    1. 1)
      • Cheung, N.K., Sandahl, C.R.: `Effects of reflection from single-mode fiber connectors on InGaAsP/InP lasers in high-bitrate transmission systems', OFC '83, 1983, New Orleans.
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      • J. Armstrong . Theory of interferometric analysis of laser phase noise. J. Opt. Soc. Am. , 1024 - 1031
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      • K. Petermann , E. Weidel . Semiconductor laser noise in an interferometric system. IEEE J. quantum Electron. , 1251 - 1256
    4. 4)
      • T.P. Lee , S.G. Menocal , H. Matsumura . Characteristics of line width narrowing of a 1-S/im DFB laser with a short GRIN-rod external coupled cavity. Electron. Lett. , 655 - 656
    5. 5)
      • Shah, V.S., Young, W.C., Curtis, L.: `Large fluctuations in transmitted power at fiber joints with polished endfaces', Paper TUF4, OFC/IOOC '87, 1987, Reno.
    6. 6)
      • Cheung, N.K., Kaiser, P.: `Modal noise in single-mode fiber transmission systems', Proc. 10th European Conf. on Optical Communications, 1984, Stuttgart, p. 242–243.
    7. 7)
      • Epworth, R.E.: `The phenomenon of modal noise in analogue and digital optical fiber systems', Proc. 4th European Conf. on Optical Communication, 1978, Genoa, p. 492–501.
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