Autumn 2017 Optical Connections Magazine


EUROMICRON announces 12 channel EUROLENS

To accommodate up to 12 lenses in the space of a standard

MACOM delivers 100G single lambda solution Cloud data centre growth has compelled a shift from conventional NRZ signaling tomulti-level signaling for both optical and copper interconnections. PAM-4 signaling at 53 Gbaud permits the transmission of 100 gigabit Ethernet serially over a single optical wavelength. MACOM’s 100G single lambda solution leverages the company’s 53 Gbaud PAM-4 technology to deliver 100G throughput over a single wavelength, dramatically reducing the number and cost of optical components typically housed in an optical transceiver module. Leveraging an advanced 16 nanometer FinFET process node, the MACOM PRISM mixed signal PHY that underpins the 100G single lambda solution is a generation ahead of competing PHYs developed at larger, planar geometries. Designed for 53 Gbaud PAM-4 operation with integrated linear laser driver, forward error correction and a flexible DSP based equalizer, the MACOM PRISM has been designed for ease of integration, enabling cloud-scale economics and cost structures. EUROMICRON Werkzeuge GmbH have introduced an expanded beam connector with up to 12 channels that is compatible to MIL-DTL-83526/20 & 21 and therefore compatible to the 2, 4 and 8 channel EUROLENS. The EUROLENS family was developed for harsh environment and multiple connections and the ruggedized screw thread and optimal strain relief oer connectivity even in adverse conditions. The hermaphroditic connector provides flexibility in the field

and the expanded beam oers “optimal optical transmission with minimal loss.” The non-contact system allow for thousands of matings and the lens connector uses a spherical lens to expand the light beam diameter. This technology makes the connector incredibly resistant to shock and environmental issues, minimizing the eects of dust, debris and vibration. Because the lenses do not touch each other, the connector lasts at least for 3.000 mating cycles.

4 channel expanded beam connector, EUROLENS uses 2mm lenses instead of 3mm in the 8 and 12 channel version. In combination (2mm lens to 3mm lens) there is a slightly increased loss. Internal measurements show a typical loss of 1,5dB SM and MM between this two lens technologies. EUROLENS is available as plug with coupling nut and bulkhead with flange or jam-nut.

Albis showcases extended portfolio of PAM-4 photodiodes

Albis Optoelectronics have announced plans to present its extended photodiode portfolio at this year’s ECOC. The range of products, with target PAM-4 applications, consists of ten dierent designs, including single channel and array photodiodes available as bare die chip or mounted on a ceramic carrier.

The components act as a key building block inside 100G, 200G and 400G ROSA modules and operate at a bandwidth range between 20 and 40 GHz. Albis Optoelectronics is a designer, developer and manufacturer of high-speed photodiodes and oers a portfolio of Telcordia qualified InP and GaAs photodiodes for Datacom and telecom applications.




Coherent has introduced a range of RQB fibre cables, designed for us with fibre lasers operating at CWpower levels up to 1.5Kwand pulsed lasers as high as 1MW. The developer says that this specification makes the new cables an attractive option for cost- sensitive applications level and also enhances system simplicity when utilised with air-cooled fibre lasers. RQB cables incorporate quartz block technology, which enables the use of anti- reflection coatings to reduce overall losses to under 3%. Additionally, the cables feature a mode Coherent oers new air-cooled fibre cables

stripper to prevent unwanted back reflections or pump light from propagating in the cladding, as well as an integrated thermoswitch in the connector to protect against overheating. They also include a safety interlock that continuously monitors the status of the fibre. RQB Fibre Optic Cables are available with core diameters from 50 µm to 1000 µm, a 0.20 numerical aperture, in lengths of 5m to 200m. The use of external water cooling extends the RQB maximum power rating to 3 kW. Plus, the option of a square cross-section core delivers an essentially “flat-top” square beamwith dimensions ranging from 100µm x 100µm to 1000µm x 1000µm.


| ISSUE 10 | Q3 2017

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