Packaging of OEICs with tapered fibers for optical communications systems with up to 45 GHz modulation bandwidth

We designed and fabricated a series of modules for one-sided and double-sided fiber-chip coupling of waveguide-fed InP and GaAs OEIC such as diode lasers, semiconductor amplifiers and optical modulators. Simultaneous coupling of both chip sides to the fiber is possible with a new patented set-up. The modules are temperature-controlled within an ambient temperature range from -10 degrees C to +50 degrees C and electrical modulation signals up to 45 GHz can be fed via RF connectors to the OEIC. The coupling loss is typically less then 3 dB with tapered fibers. The package shows good long-term stability and is well-suited for prototypes and small-scale production.