Abstract

A simple method for achieving a widely tunable narrow-linewidth, single polarization state and single transverse mode lasing oscillation from a commercially available multimode vertical cavity surface-emitting laser by use of a coupled cavity is reported. The laser has a wavelength tuning range of more than 5nm along 850nm, a side-mode suppression ratio of 15dB, and an output power of 0.3mW from a 50-μm multimode optical fiber at a bias current of 15mA. The laser was operated in a single state of polarization lasing oscillation without any polarization switching.

© 2005 Optical Society of America

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