2004•Journal of the Optical Society of KoreaRequires access

Design and Analysis of a Widely Tunable Sampled Grating DFB Laser Diode with High Output Power

Soohyun Kim, Youngchul Chung

Abstract

A widely tunable SG-DFB (Sampled Grating Distributed Feedback) laser diode is proposed and its feasibility is confirmed through simulation. The new SG-DFB laser diode is composed of a pair of sampled gratings, some parts of which are gain sections and the other parts of which are phase control sections. It is shown that a few tens of nanometers can be tuned through the adjustment of two currents into the phase control sections. Higher output power is expected compared with a SG-DBR laser diode with similar parameters. The dynamic single mode operation is also observed in the time-domain simulation.

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Key concepts: Distributed feedback laser, Grating, Diode, Optics, Laser, Materials science, Semiconductor laser theory, Laser power scaling