LTFOS REV. 006 04/15/2013

©Luna Innovations Incorporated, Roanoke, VA

All rights reserved.

FIBER OPTIC SWITCH

APPLICATIONS

example where multiplexed testing can save both time and expense is in manufacturing test of modern, multi-

channel dense wavelength division multiplexed (DWDM) fiber components and systems. Typical components,

found in a DWDM architecture, include both static and dynamically controlled multi-channel filters (AWGs,

ROADMS, etc.). As bandwidth increases, so do the testing requirements for these backbone components.

Typical testing requirements for DWDM components include Insertion Loss, Polarization Dependant Loss,

Chromatic Dispersion, Group Delay Ripple and Polarization Mode Dispersion, which are all measured with

high wavelength resolution (< 10pm) over the entire communications band (e.g. 1525 nm – 1565 nm). For

multi-port components, this may lead to hours of testing for a single component.

Luna’s solution is simple: Integrate our

easy introduction of multiport testing into

any environment. Stable, configurable

and fast, this combination enables testing

a high-port count DWDM for all

parameters in a matter of minutes.

Multi-port DWDM Component Testing

Skew measurements can now be made on multimode and/or single-

measurement capability relies on the OBR’s ability to measure

minute reflections (< -135 dB) out to 2 kilometers with zero dead

zone and industry-leading sub-millimeter spatial resolution.

Skew is determined by making a single-ended time-of-flight

measurement of each fiber in a cable strand and computing the

path differential, which is then graphically displayed to the user.

With the single click of a button, this can all be achieved in less

than one minute. Additionally, with the same measurement, the

user can apply OBR software tools to characterize the dispersion of

each fiber in the cable strand, and reduce overall test time and the

duplication of equipment.

Fast and Accurate Fiber SKEW Measurement