Multi-wavelength transmission-reflection analysis for fiber monitoring

Multi-Wavelength Fiber Lasers

Nowadays, multiwavelength lasers are of great interest for telecommunications and sensors multiplexing. These lasers also have a great potential in the fiber-optic test and measurement of WDM components. The requirements for such optical sources are: a high number of channels over large wavelength span, moderate output powers (of the order of 100μW per channel) with good optical signal to noise...

12 Multi - Wavelength Photonic Crystal Fiber Laser

Modulation formats for multi-core fiber transmission.

We investigate high dimensional modulation formats for multi-core fibers (MCFs) and spatial superchannels. We show that the low skew variations between MCF cores maybe exploited to generate 'multi-core' formats that offer significant advantages over independently transmitting conventional 4-dimensional formats in each core. We describe how pulse position modulation formats may be transposed to ...

Wavelength Assignment for Dynamic Traffic in Multi-fiber WDM Networks

We propose an on-line wavelength assignment algorithm for multi-fiber WDM networks, in which lightpaths are established and released dynamically. For a given number of fibers per link and number of wavelengths per fiber, the algorithm aims to minimize the blocking probability. It may also be used to reduce the number of wavelengths required for a given tolerable blocking probability. Simulation...

Dynamic Routing, Wavelength, and Fiber Selection Algorithms for Multi-Fiber WDM Grooming Networks

We consider the problem of dynamic routing in a multi-fiber time-slotted wavelength routed WDM network. Requests to establish a connection are dynamic and each connection requests an integer multiple of some basic unit. Each wavelength has capacity of carrying a multiple of these channels, where each channel is represented by a time-slot as in TDM networks. We represent the network as a layered...