Brett Lane

Investigation of the Interaction of Modal and Chromatic Dispersion in VCSEL–MMF Channels

We develop a complete theoretical model to explain the interaction of modal and chromatic dispersion in optical channels based on vertical cavity surface emitting lasers and multimode fibers. We propose an original formalism to estimate the magnitude of this interaction on the channel bandwidth and mode partition noise power penalty within traditional communication system link models. Simulation results are experimentally validated.

48.7-Gb/s 4-PAM Transmission Over 200 m of High Bandwidth MMF Using an 850-nm VCSEL

We demonstrate 4-PAM 48.67-Gb/s transmission, using a directly modulated VCSEL, over 50, 100, and 200 m of multimode fiber with partial dispersion compensation properties. The results of our experiments indicate that 200 m reach is achievable with forward error correcting codes with small overhead.

Mode Partition Noise and Modal-Chromatic Dispersion Interaction Effects on Random Jitter

The generation and accumulation of random jitter (RJ) in channels using multimode fibers (MMF) and vertical cavity surface emitting lasers (VCSEL) is investigated. A novel theoretical model that accommodates mode partition noise (MPN) and modal-chromatic dispersion interaction (MCDI) for the length dependence of RJ in VCSEL-MMF channels is developed. The proposed model requires a few channel parameters such as length, MPN coefficient, spectral width of the source, and a new parameter for describing the modal-chromatic interaction. Simulation predictions are verified by experiments.

50 Gb/s 4-PAM over 200 m of high bandwidth MMF using a 850 nm VCSEL

Transmission of 50 Gb/s over 200 m of dispersion compensated MMF using 4-PAM and directly modulated VCSELs is presented.

Corrections to “Mode Partition Noise and Modal-Chromatic Dispersion Interaction Effects on Random Jitter” [Aug 13 2629-2638]

In the above published paper (ibid., vol. 31, no. 15, pp. 2629-2638, Aug. 2013), equations (10) and the paragraph after equation (9) have typographical errors. Corrections are presented here.