Tunable lasers, VCSELs among OFC products
Infineon demonstrated its 1310 nm VCSEL technology, which will be deployed in future 10 Gbit/s versions of Infineon s XPAK, XFP and X2 form-factor modules. These target 10G Fibre Channel and 10 Gigabit Ethernet, as well as SDH/SONET applications for transmission distances of up to 10 km. The device was shown in an LC-TOSA based on an innovative, low-cost packaging technology that is run on Infineon s high-volume backend lines for IC packaging.
Infineon also exhibited its 850 nm VCSEL operating at up to 2.5 Gbit/s with proven high reliability of better than 20 FIT. This value is measured and guaranteed for each individual wafer using elaborate statistical methods and advanced process control. The device targets short-range datacom applications according to Fibre Channel and Ethernet standards over an extended temperature range from -40 to 95°C.
* For more information, visit Infineon’s press room.
Picolight intros 40 km and 80 km transceivers
Picolight announced the immediate availability of extended-reach single-mode Gigabit Ethernet transceivers for 40- and 80-kilometer "ZX" applications. The new small form factor pluggable (SFP) transceivers round out Picolight s Extensus product family, which already supports 10-kilometer Gigabit Ethernet "LX" and 20-kilometer Fibre Channel applications. These products, together with Picolight s existing 850nm multi-mode fiber Accelar SFP transceivers, form a complete reach-distance solution for optical Ethernet.
Picolight accelerated its entry into the 40- and 80-kilometer optical interconnect market through a partnership with the US-based unit of Sumitomo Electric Industries (SEI). Picolight s new Extensus transceivers use Sumitomo’s 1310 nm and 1550 nm distributed feedback (DFB) lasers and are part of a strategic supply relationship through which Sumitomo will also offer products using Picolight s 850 nm VCSELs.
* For more information, see Picolight’s website.
Opnext extends 10G Ethernet product family
Opnext has extended its line of XENPAK modules with the introduction of the new TRE7061EN, an advanced XENPAK module for Ethernet over DWDM. The TRE7061EN can transmit data beyond 80 km over standard single-mode fiber, utilizing a cooled integrated laser modulator (ILM) transmitter and avalanche photodiode (APD) receiver. The wavelength stability is +/- 100 pm, which enables 100 GHz spacing DWDM operation.
* For more information, see OpNext’s press release.
Santur announces next-generation tunable laser
Santur Corporation, a vertically integrated optical components manufacturer, has announced its Series 3000 next generation of products that build on the company’s widely tunable, DFB array-based technology. This has already been designed into many transponders and linecards for both metro and long-haul DWDM applications. The new product offers on-demand tunability across the C- or L-band at CW power levels up to 20 mW, and is the size of a standard 12.7 x 30 mm butterfly package.
* For more information, see Santur’s press release.
Bookham introduces tunable, long-reach DML
Bookham Technology launched what it describes as the industry’s first 2.5 Gbit/s directly modulated laser (DML) that is tunable over eight adjacent 50 GHz ITU DWDM channels. The LC25FT laser has a 360 km reach and is available in 2, 3 and 4 mW peak-power versions.
The product challenges more expensive electroabsorption (EA)-modulated lasers that currently dominate this transmission distance. The LC25FT uses three key Bookham technologies to achieve its 50 GHz compliance: an ultra-low-chirp thermally tuned DFB laser, co-packaged with a wavelength locker, and a cooler technology that reduces wavelength drift as the device case temperature changes.
* For more information, visit Bookham’s press room.
DMG announces bi-directional duplexer
DMG Technologies, a manufacturer of optical subassemblies, has introduced a low cost, bi-directional (BiDi) optical subassembly (Model LPM0511). The new BiDi is the first product to incorporate DMG s newly developed avalanche photodiode (APD). With the APD, this product offers significantly improved sensitivity over models equipped with pin diodes when used in similar applications.
"It is well known that optical receiver sensitivity can be improved by the use of an APD because of its optical gain," said Toshi Makino, CTO. "As a result, our new BiDi exhibits a sensitivity of -33 dBm for a bit error rate of 10-10 at 1.25 Gbps. This sensitivity is 8 dB better than the sensitivity of a similar BiDi using a pin diode. In addition, the new unit also demonstrates low cross talk and a negligible power penalty."
* For more information, visit DMG’s website.
