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High Repetition Rate DFB Laser for Broadband Networks
A. Kalair, N. Abas and N. Khan

High speed data communication networks operate at 10 to 40 GHz and possibility of 50 to 100 GHz is under extensive investigation worldwide. One of the significant barriers in electronics is switching limitations. Material scientists and engineers might harness semiconductors lasers, photodetectors and modulators to produce and process 100GHz signals before cul-de-sac. Operational limits of high data rate networks include both noise and bandwidth. Laser pulse shortening reduces bandwidth and high repetition rate decreases the noise. Pulse multiplication techniques allow us to increase the repetition rates from a few MHz to several hundreds of GHz. Modulation frequency is another barrier to use THz carriers for communication applications. This paper reports the possibility of tunable high repetition rate light source for switching, measurement and high data rate broadband communication applications.

Keywords: Laser pulse, Material limitations, Repetition rate multipliers, THz generators

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