Joseph S. Hayden

New heavy metal oxide silicate amplifier glass for compact and broadband amplifiers

Properties of a new rare-earth doped heavy metal oxide containing silicate glass are presented. The glass has potential for fabrication of ultra-short wideband fiber and planar waveguide amplifiers. We report specific results for a fiber amplifier geometry, discussing achieved improvements in device compactness (Giles gain g* = 210 dB/m allowing up to 100 times shorter fiber) and amplification bandwidth (50% more bandwidth in C-/L-band) compared to the conventional EDFA. We also access the potential of this material for fabrication of active planar integrated waveguide devices.

Glass modification techniques for photonic devices

No abstract available.

Integrated Planar Erbium-Doped Waveguide Amplifiers: Technological and Optical Considerations

Next-generation optical telecom devices need both novel optical materials and appropriate material modification technologies in order to realize all-optical functionalities like light generation, light guiding, signal splitting and combining, wavelength division (de-)multiplexing (WDM), amplification, gain equalization, switching, and detection [1]. In addition to glass fiber drawing techniques, methods for producing single-mode waveguides in planar devices have been moved into the focus of today’s worldwide photonics research and development activities [2]. Especially in access networks, the significance of the above-listed signal-management operations is growing compared to the “pure” light transportation feature of optical fibers.