Deliverables Optical Spectrum Analyzer Summary: The operation of the Optical Spectrum Analyzer (OSA) can be described as follows: The OSA is basically a polarization independent coherent detector, whose local oscillator (LO) is a wide range tunable laser. The signal to be analyzed, or input signal, is combined with the output of the local oscillator in a 3 dB coupler, and then fed into a balanced dual detector. At the output of the detector the resulting electrical signal is a replica of the input signal translated to a 100 MHz intermediate frequency (IF). The resulting IF signal is logarithmically amplified and detected. The detected voltage is finally digitized and processed by a microcontroller, which in turn feeds the processing results to an external personal computer. The two main issues in the design of the OSA are the polarization independence and the problems associated with the image frequency. Photonic integrated 4-wavelength 2x2 crossconnect Summary: A test version has been developed of an extremely compact integrated polarization independent multiwavelength optical crossconnect. The device can crossconnect signals at four wavelengths independently from two input fibres to two output fibres, it can be used for crossconnecting two multiwavelength fibre links. Channel spacing is 400 GHz, the shortest wavelength channel is 1551 nm. Total on-chip loss of this prototype is less than 16 dB, crosstalk is better than -16 dB. Device size is 6x6 mm2. Optical Cross-connect Summary: Two identical Optical Cross-connects have been designed and fabricated, together with their managing Windows based control software. The cross-connects are built with fiber based components and mechanical switches, and provide a monitoring output port from where a sample of the optical signal at any other port can be obtained. The cross-connects actually built have two input and two output ports, and can route up to four specific wavelengths from any input to any output port. Their crosstalk figures are lower than -30 dB in all cases. The cross-connects include a monitoring optical output, which can be connected via the managing software to any of the input or output ports. Exploitable results Broadland Lightwave Sources and Systems (BLISS) BLISS brings to full maturity key advanced components and modules for photonic networks and demonstrates their practical use in applications. A series of network demonstrators, addressing both the Core and Access, are being realised by the implementation of advanced integrated photonic modules. The objectives are based on the combined strengths of the partners in the areas of advanced optical components and their practical applications. A large number of specific targets are set for component performance. We regard these targets as ambitious, but realistic given the track record of the partners in the consortium. An important part of BLISS is the practical demonstration of the use of advanced components in advanced applications. In addition to these applications, strong links are envisaged with several other projects. A number of specific links have already been identified. Based on the ACTS work plan, general system requirements and the background of the partners, the Consortium is proposing work in the following general areas: - Advanced systems applications - Advanced network components - Low cost and access components Searching for OpenAIRE data... There was an error trying to search data from OpenAIRE No results available
