At OFC 2011, held earlier this month in Los Angeles, the high-speed optical communications interconnect supplier Finisar (NASDAQ: FNSR), announced and demonstrated several new transceiver products.
The company's lead demonstration involved its 4x25G DFB-based CFP optical transceiver, which incorporates two 100 Gigabit Ethernet (100GE) CFP modules transmitting IP packets error-free at 103.1 Gb/s over 20 kilometers of single-mode fiber. The company notes that this distance greatly exceeds the 10 kilometer maximum distance standardized by IEEE's 100GBASE-LR4 for this application.
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In addition at OFC 2011, Finisar demonstrated an 80km 10G SFP+ transceiver for telecom client and metro applications, and introduced its new family of industrial temperature (-40 to 85C) SFP+ transceivers targeting wireless applications.
4x25G DFB-based 100GE CFP Modules for 100 Gb/s Ethernet
Finisar's 100GE CFP prototype modules are based upon four DFB lasers running at 25.8 Gb/s each, and are fully compliant with the CFP Multi-source Agreement (MSA) and the 100GBASE-LR4 (4 x 25 Gb/s) optical interface defined by the IEEE 802.3ba standard.
By using integrated transmitter optics based on directly-modulated 4x25G DFB lasers, Finisar says its second-generation CFP modules offer a very significant decrease in both power dissipation (12 watts) and cost when compared to first generation CFP modules. Finisar's first-generation 100GE LR4 CFP module is already in full production and shipping in volume.
"As we had previously announced to the industry, we are on track with the development of our next generation of 4x25G CFP transceiver modules," said Christian Urricariet, director of product marketing for high-speed optics at Finisar. "We believe that this technology represents a fundamental breakthrough, enabling a new generation of standards-based 100GE modules. Compared to other competing solutions, these modules will be more power efficient, more cost effective, and will enable a new generation of higher density systems based on 100GE."
80km 10G SFP+ Transceiver for Telecom Client and Metro Applications
Finisar also demonstrated its new multi-rate transceiver designed for 80km 10G telecom client and metro applications, including SONET LR-2, OTN P1L1-2D2 and 10G Ethernet ZR.
The demonstration showed 10.7 Gb/s error-free transmission over 80km of single-mode fiber, as well as transmitter jitter generation within the SONET requirements at 10.7 Gb/s. The transceiver uses an internal CDR to improve the signal integrity, thus enabling customers to design SFP+ line cards with a higher number of ports and longer traces between the SERDES chips and the transceiver ports.
The 80km 10G SFP+ has the same performance of its equivalent XFP transceiver, but with 1.5 watt lower power consumption and a smaller footprint. This new transceiver extends Finisar's 10G SONET/SDH/OTN SFP+ product family enabling telecommunications systems companies to deploy high-density next generation 10 Gb/s platforms.
Industrial Temperature 10G SFP+ Transceivers
Finally, Finisar also introduce at OFC a new family of industrial temperature (I-Temp) 10G SFP+ transceivers suitable for applications such as access backhaul, wireless (LTE) and other outside-plant equipment. The I-Temp transceiver family includes a 300 meter SFP+ SR, a 10km SFP+ LR, and a 40km SFP+ ER module. The 10km SFP+ LR transceiver is in production now while the 300 meter SFP+ SR and 40km SFP+ ER transceivers will both begin sampling in the second half of 2011.
"Finisar is proud to demonstrate leading-edge technology innovations, such as our 4x25G DFB-based CFP modules and 80km 10G SFP+ transceiver, which are at the forefront of the optics industry," said Rafik Ward, vice president of marketing at Finisar. "We believe that our engineering investments in these next generation technologies demonstrate Finisar's commitment to the transceiver market. We enable our customers to be successful by offering them a complete portfolio of cutting-edge products across different data-rates, applications and form factors."
In addition to these demonstrations, at OFC Finisar displayed equipment from its full portfolio of optical communication products including transceivers, transponders, wavelength selective switches, active cables, advanced optical components, and passive devices.
