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GaAs Based Gratingless Wavelength Tunable Semiconductor Laser

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Abstract

We report a simple and compact wavelength switchable laser based on GaAs without grating and epitaxial regrowth. Single-electrode controlled wavelength switching over 30 channels with channel spacing of 0.4nm is achieved, with a SMSR around 30dB. The center wavelength is 877nm, suitable for biological detection.

© 2012 Optical Society of America

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