SFP transceivers boast integrated diagnostics
US optical subsystems maker Optical Communication Products (OCP) has released a portfolio of coarse wavelength-division multiplexer-based, small-form-factor pluggable transceivers to support high-density, long-haul Gigabit Ethernet applications. The transceivers are equipped with integrated digital diagnostics that enable end-users to monitor the device's internal temperature, DC supply voltage, transmitter bias current, transmitter output power and receive optical signal level. The SFP transceivers are available in eight wavelength channels, nominally at 1470, 1490, 1510, 1530, 1550, 1570, 1590 and 1610 nm. OCP offers distance options of 62 and 70 km, based on budget links of 22 and 24 dB, respectively.
www.ocp-inc.com
Modular triplexer series offers a flexible solution
Afonics, UK, has unveiled its range of triplexer products. Using a unique modular design, these devices are easily configured for use in a wide range of applications.
The triplexers include a 1310/1490/1555 nm fibre-to-the-home range with digital and analogue photodiodes, and PIN plus transimpedance amplifier options for various data rates. Options at 1310/1310/1555 nm are available and short wavelengths can be incorporated for CCTV video links. The modular design also enables configurations that use more than three devices. Afonics claims that the Triplexer products exhibit exceptional tracking stability, wide operational temperature ranges and state-of-the-art performance.
www.afonics.com
Cabling solution allows fast network expansion
Swiss cabling specialist Reichle & De Massari (R&M) says that its FiberCurb cabling system allows network operators to expand their fibre-optic infrastructure quickly and securely.
The modular system is designed for nodes and cross-connection frames in local networks. The splice tray is a passive optical interface. The small distributor is configured for 12 connector modules or splice connections and can be used for point-to-point, star and ring topologies. R&M says that FiberCurb's compact design allows it to be used in difficult installation situations and where space is limited.
www.rdm.ch
Enhanced software tool allows faster calculation
US software specialist RSoft Design Group has enhanced its BandSOLVE photonic-band-structure tool. Designed for calculating the band structures of photonic crystal devices, BandSOLVE 1.2 introduces two new simulation options: inversion symmetry and mode reseeding.
RSoft claims that the inversion-symmetry code runs in as little as 45% of the time previously required, while mode reseeding offers similar or greater time efficiencies.
Version 1.2 includes new measurements of polarization fractions and the McIsaac-mode class for photonic-crystal fibres, and allows a more flexible organization of measurements. RSoft has also improved BandSOLVE's unique dual-mode interface to the finite-difference time-domain engine for calculating metallic and dispersive band structures. An enhanced ModeVIEWER, meanwhile, provides more powerful data browsing and new format options for exporting graphs and mode profiles.
www.rsoftdesign.com
VCSELs geared up for datacoms applications
Optek Technology's OPV300 series of 2.5 Gbit/s vertical-cavity surface-emitting lasers (VCSELs) are targeted at high-speed datacoms applications. According to the US manufacturer, the 850 nm oxide-confined VCSELs provide a higher slope efficiency and a lower operating voltage than traditional implant-confined VCSELs. Optek also says that the OPV300 series offers a higher speed, higher power and a lower cost than other laser technologies.
The VCSELs are supplied in a variety of packages. The unit pricing for 1000-piece quantities is less than $11 (€9.80) for a TO-18 or TO-46 package with a flat-window lens.
www.optekinc.com