Finisar

About: Finisar is a company organization based out in Sunnyvale, California, United States. It is known for research contribution in the topics: Signal & Laser. The organization has 900 authors who have published 1523 publications receiving 22634 citations.

VCSEL optimized for high speed data

Abstract: A Vertical Cavity Surface Emitting Laser (VCSEL) is optimized for longer life of the VCSEL by controlling the distance of doped and undoped layers near an active region. In addition, the VCSEL optimized for reduced parasitic lateral current under an oxide of the VCSEL by forming a high Al confinement region and placing the oxide at a null in a standing optical wave. Further, the VCSEL is optimized to reduce resistance.

Reconfigurable optical add-drop multiplexer

Abstract: An optical multiplexer is provided that includes a reconfigurable switching fabric with a number of inputs and outputs. In addition, the reconfigurable switching fabric employs VLSOAs that facilitate at least partial reconfiguration of the switching fabric by serving as switches to add, drop or pass-through one or more optical signals received at the inputs of the reconfigurable switching fabric. In some cases, one or more of the VLSOAs also serve to amplify one or more optical signals so as to compensate for losses that may be experienced by the signal in transit through the switching fabric, or elsewhere. Finally, this example of the optical multiplexer includes a wavelength division multiplexer coupled to the reconfigurable switching fabric and configured to multiplex at least some of the optical signals received from outputs of the reconfigurable switching fabric.

Next generation CFP modules

Abstract: The details of two next generation CFP MSA modules, CFP2 and CFP4 are described. This includes size evolution, front panel port density, electrical I/O, mechanics, MIS, power, and support of SMF and MMF applications.

Alignment using fiducial features

Abstract: The present invention relates to positioning components of an assembly using fiducial features. A first fiducial feature on a first piece of the assembly can be located. A first component can be positioned on the first piece of the assembly based on the location of the first fiducial feature. A second fiducial feature on a second piece of the assembly can be located. The second component can be positioned relative to the second piece of the assembly based on the location of the second fiducial feature. The first piece can be positioned relative to the second piece based on the locations of the first and second fiducial features. The assembly can be an optical device. The first component can be an active optical device, the second component can be a lens, the first piece can be a package, and the second piece can be a lid.

Vertical cavity surface emitting laser optimized for thermal sensitivity

Abstract: A vertical cavity surface emitting laser (VCSEL) optimized for use in self mixing applications. The VCSEL generally includes a bottom distributed Bragg reflector (DBR) mirror formed on a substrate. An active region is formed on the bottom mirror. A top DBR mirror is formed on the active region. A trench is formed in the at least the top mirror. An aperture is oxidized into the VCSEL. At least one of the bottom DBR mirror, the top DBR mirror, the metal contacts, the trench, and/or the aperture is optimized to make the VCSEL more thermally sensitive to changes in current through the VCSEL.