Agilent Technologies, Inc.

Tirmula R Ranganath

Shih-Yuan Wang

Scott W Corzine

Michael R T Tan

Dubravko I Babic

Wayne Bi

An optically pumped vertical-cavity surface-emitting laser (VCSEL) device and a method of fabricating the device utilize two separate substrates that perform a filtering operation to selectively transmit only light having a long peak wavelength that is generated by the device. The optically pumped VCSEL device is a self-pumped device that can generate the pump light to drive the device to emit output laser light having a long peak wavelength. The optically pumped VCSEL device includes a short-wavelength VCSEL formed on one of the two substrates and a long-wavelength VCSEL formed on the other substrate. The short-wavelength VCSEL is a current-driven VCSEL that generates short-wavelength light to drive (i.e., optically pump) the long-wavelength VCSEL. The short-wavelength VCSEL and the long-wavelength VCSEL are bonded together such that the two substrates are separated by the two VCSELs. A transparent optical adhesive material or a metallic bonding material may be utilized to bond the short-wavelength VCSEL onto the long-wavelength VCSEL. The substrates are wavelength-selective with respect to propagating light, so that short-wavelength light generated by the short-wavelength VCSEL and not absorbed by the long-wavelength VCSEL is mostly absorbed by the two separate substrates. However, the long-wavelength light generated by the long-wavelength VCSEL is allowed to be transmitted through the substrates as output laser light.

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Palo Alto, CA, United States of America

Tirmula R Ranganath