Independently addressable VCSEL arrays on 3-μm pitch |
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Authors: | Chua C.L. Thornton R.L. Treat D.W. Donaldson R.M. |
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Affiliation: | Xerox Palo Alto Res. Center, CA; |
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Abstract: | We present an exceedingly dense linear vertical-cavity surface-emitting laser (VCSEL) array with independently addressable elements on a staggered 3-μm pitch. Our devices utilize an all-epitaxial structure and operate at a wavelength of 813 mm with threshold currents below 400 μA. The high-packing density is enabled by combining transparent contact technology with a planar laterally oxidized device architecture. The array exhibits low interelement thermal crosstalk and has electrical resistances of 3 MΩ between adjacent array elements |
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