Optical transceivers


Ignis Optics has added to its line of IGP-2000 Series modules with the OC-48/STM-16 and SFP MSA-compliant, hot-pluggable IGP-21611 IR-1 transceiver. This has a range of 20km-plus for metro, metro access client and line-side applications.

The module requires low power and gives good EMI/ESD performance.

IO-PKG optical packaging technology enables the manufacture of single-mode transceivers using methods developed for multi-mode products.

Luminent has launched a range of 22 different types of SFP MSA-compliant transceivers for applications such as Gigabit Ethernet, Fibre Channel and SONET/SDH services (OC-3 through OC-48), maximising flexibility for physical layer optics.

Dual- and multi-rate transceivers are available for OC3–OC12 and OC-3/12/48 applications, alleviating the operational overheads associated with inventory, sparing, and upgrading systems.

Digital diagnostic functionality allows real-time calibrated measurement of parameters such as optical receive and transmit power, supply voltage, bias current and module temperature.

JDS Uniphase's 10 Gigabit Ethernet XENPAK transceiver uses an uncooled 1310nm DFB laser to transmit data over single-mode fibre up to 10km. It has a 4-bit XAUI hot-pluggable electrical interface, accepts a duplex SC optical connector and is compliant with XENPAK and IEEE 802.3ae 10GBASE-LR specifications.

The module draws only 4.2W and, when used at both ends of the link, is guaranteed for distances of up to 15km. Fully compliant pairs of transceivers have been demonstrated at up to 40km.

EMI performance is certified to 8dB below FCC class B (residential), allowing multiple transceivers per line-card.

At ECOC 2002 JDS Uniphase also launched: a 300-pin small-form-factor 1310nm 10Gbit/s transponder for client-side VSR/SR1 (very short reach/short reach 1) applications; a SFF 1550nm 10Gbit/s transponder for client-side SR2/IR (short reach 2/ intermediate reach) up to 40km; and the network-side OTPDR5101-LR (long reach) MSA-compliant 10Gbit/s, 50GHz DWDM multi-rate transponder, with options for metro links up to 100km.

Molex Fiber Optics has added two XENPAK transceivers to its MuxLink 1300nm CWDM product family: the extended-reach ELX4 (up to 40km over single-mode fibre) and multi-protocol MP, which operates at 1.0–3.2Gbit/s per lane.

Using the latest CWDM multiplexing, Molex extends the IEEE 802.3ae distance target of the LX4 physical media dependent sub-layer modules to 40km, eliminating the need for dispersion-shifted fibre.

Agilent Technologies' new SFP transceivers for metro SONET/SDH are part of its Metrak family. They include the HFCT-5760xx-OC-3 for 155Mbit/s data rates, for long- and intermediate-reach, and the intermediate-reach HFCT-5750xx-OC-12 for 622Mbit/s data rates. Both will be generally available by end-2002.

Both are available with the bail de-latch mechanism for removing transceivers in compact systems and high-density applications.

By the end of 2002 Agilent will also sample a 2.488Gbit/s (OC-48) transceiver with digital diagnostic monitoring. The transceivers have multi-rate capability, allowing communication with slower transceivers, and an extended operating temperature range of –10ºC to 85ºC.

After scaling its technology from OC-48/STM-16's 2.5Gbit/s (as used in its SFP transceivers launched at OFC 2002) to 10Gbit/s, at NFOEC 2002 Ignis Optics used OC-192 framer-to-framer SONET links to demonstrate samples of hot-pluggable 10Gbit/s transceiver modules that comply with the XFP MSA.

The serial electrical interface platform has a footprint 80% smaller than other 10Gbit/s transceiver form factors.

Picolight's pluggable cages are now available with serial 1 and 2Gbit/s short-wavelength or 1Gbit/s long-wavelength transceivers, combined with Samtec's MECT 20-pin surface-mount SFP connector.

This creates a complete pluggable optical transceiver solution from a single supplier, optimised for all SFP applications including Fibre Channel and Gigabit Ethernet.

Furthermore, Samtec is now selling Picolight's cages to its own customer base.

OpNext's 1550nm XENPAK transceiver has an externally modulated laser, XAUI electrical interface and 70-pin connector, and transmits up to 40km. The transceiver is the result of a collaboration with Pine Photonics' module design and manufacturing.

OpNext says it sees 1550nm XENPAK modules as key to supporting all IEEE 802.3ae solutions in one form factor.

The standard module uses low-power CMOS ICs and a PIN detector, though it can be customised for more sensitive APD detectors.

Vitesse Semiconductor has launched the 300-pin MSA and OIF-SFI4-01.0- compliant C- and L-band VIT5208 and VIT5150 models in its 10Gbit/s LR-2 long-reach transponder family for the metro and regional markets.

The VIT5208 provides eight-channel tunability at 50GHz channel spacing as a replacement for a single-channel 10Gbit/s MSA transponder. The VIT5150 has <2dB optical dispersion penalty at 1600ps/nm and enables 10Gbit/s SONET and 10GbE networks to span more than 100km. Paired with a Vitesse high-gain FEC, reach can be increased beyond the standard 100km in 10Gbit/s SONET networks.

New features include low power consumption of 9W and a small form factor of 3.25"x4.0"x0.48".

More in Transmission