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  • Instrumenting DWDM Laser Diode Production Tests
    is emitted perpendicular to the wafer surface. Edge emitting laser diodes must be cleaved from the wafer, but can. be left in a strip (also called a bar) that contains a single row of several devices. The front and back edges of this diode array. are coated to form optically reflective interfaces. The back
  • Analysis and Design of Vertical Cavity Surface Emitting Lasers - Preface
    PREFACE. Design and fabrication of vertical cavity surface emitting lasers (VCSELs) requires an iterative process, which is extremely expensive and time-consuming. The use of computer-aided design (CAD) tools can help shorten the design cycle and speed up the development process. Laser models
  • Testing Today's High-Speed Multimode Fiber Infrastructure
    technologies utilize LED sources. Higher speed network. devices utilize laser light sources to support 1 or 10 Gigabit Ethernet technology. The type of laser most often used with multimode. fiber is the VCSEL (Vertical Cavity Surface Emitting Laser). A VCSEL laser light source emits at the 850 nm
  • Advanced Test Equipment Can Shorten Time to Market for New Fiber Optic Communication Gear
    to transmitter. module builders as well as network operators. This undoubtedly was a major factor in Nortel's 2000 acquisition of CoreTek, a. manufacturer of tunable lasers for 1550nm transmissions. CoreTek uses VCSEL. (vertical cavity surface-emitting laser) and MEMs (micro-electromechanical