FiberNewProducts

Los Angeles, USA — March 27^th, 2007— PhoXtal Communications AB, developer of integrated optical components for communications networks demonstrates its Monolithically Integrated FTTH Diplexer Array at this year’s OFC Conference in Anaheim, California.  
 
PhoXtal’s FTTH Diplexer Arrays combine 4, 8 or 12 diplexers in the same chip.
 
Single-step low-cost fabrication
The Diplexer Array is based on PhoXtal’s fabrication method for 1310/(1490)/1550 bidirectional diplexers (triplexers) where transmitters, receivers and wavelength selective couplers are integrated into one InP (Indium Phosphide) device. The fabrication cost is reduced by using a single epitaxial growth layer. In each diplexer, WDM functionality is achieved with a coupler designed for a large optical bandwidth, the laser by forming a DFB emitting directly into the waveguides, and standard receivers consisting of WG-PD (Waveguide Photo Diodes) implemented in the waveguides. A Diplexer Array with 250 μm fiber attachment spacing is achieved with a selected number of parallel diplexers on the same chip.
 
Dramatic improvements in port density
PhoXtal’s Diplexer Arrays are intended to be implemented in QSFP (Quad (4-channel) Small Form factor Pluggable, www.qsfpmsa.org) packages. By connecting MPO-connectorized fiber arrays in a point-to-point FTTH installation directly into the central office equipment, the port density of the equipment can be increased by a factor of three or more.
 
Visit PhoXtal at OFC 2007 booth 3261 for a demonstration of the Monolithic FTTH Diplexer Array.
 
About PhoXtal Communications
PhoXtal Communications AB develops integrated optical components for intelligent communications networks. PhoXtal combines recent advances in nano-photonics research with mature well-proven technology to achieve dramatic improvements in price-performance. For more information, www.phoxtal.com or Christofer Silfvenius, COO, PhoXtal at +46 70 2477 844 (cell US & Europe) or by e-mail at Christofer.Silfvenius@phoxtal.com