Abstract
In a ring-shaped passive bus, power-splitting losses of fiberoptic passive taps are exploited so that wavelengths can be reused in different portions of the network. This spatial reuse greatly reduces the number of wavelengths that need to be multiplexed on an optical fiber to yield a large, high-capacity, multichannel network with many concurrent transmissions. We present bounds on the power penalty due to interference caused by wavelength reuse (including the “self-interference” on a ring-shaped passive bus), and experimentally show that the penalty falls within these bounds for various cases of laser linewidth, ring length, polarization state, and modulation scheme. In all cases, the penalty is below 1.2 dB with 18-dB attenuation between reused wavelengths.
Original language | English |
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Pages (from-to) | 490-492 |
Number of pages | 3 |
Journal | IEEE Photonics Technology Letters |
Volume | 3 |
Issue number | 5 |
DOIs | |
State | Published - May 1991 |