PENCIL AMPLIFIER: Mini Er Doped Fiber Amplifier

The Pencil Amplifier is a Miniature Erbium-Doped Fiber Amplifier that provides high optical gain and low latency in a short-length ($<10\text{ cm}$) package. It utilizes a specialized highly doped phosphate glass and fiber, which allows for order of magnitude higher dopant levels than conventional silica fibers. This proprietary technology enables very high gain per unit fiber length.