Reflection And Modal Noise Associated With Connectors In Single Mode Fibers

N. K. Cheung

doi:10.1117/12.942775

1 August 1984 Reflection And Modal Noise Associated With Connectors In Single Mode Fibers

N. K. Cheung

Proceedings Volume 0479, Fiber Optic Couplers, Connectors, and Splice Technology; (1984) https://doi.org/10.1117/12.942775
Event: 1984 Technical Symposium East, 1984, Arlington, United States

Abstract

Reflections from connector end faces located near the transmitter generate intensity noise in the laser output which was found to be a function of the resonance frequency of the laser. The intensity noise introduces only an insignificant power penalty for buried-heterostructure lasers operating with a resonance frequency above 4 GHz, but could make transmission impossible in certain types of stripe geometry lasers operating with a resonance frequency below 3 GHz. Another potential system degradation may be due to modal noise which occurs mostly in laser pigtails or short jumper cables with overmoded single-mode fibers carrying both the fundamental and the higher order modes. The power penalty due to modal noise becomes negligible when the fiber section between two connectors is sufficiently long, or is deployed with a bend to sufficiently attenuate the LP₁₁ mode.

Citation Download Citation

N. K. Cheung "Reflection And Modal Noise Associated With Connectors In Single Mode Fibers", Proc. SPIE 0479, Fiber Optic Couplers, Connectors, and Splice Technology, (1 August 1984); https://doi.org/10.1117/12.942775

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