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NeoPhotonics Announces New Variable Power Intradyne Coherent Receiver (VICR) for High-Capacity 100G Optical Networks
New VICR is Designed to Improve Signal-to-Noise Ratio and Increase Coincident Channel Count in “Colorless” 100G Coherent Systems
Core networks are rapidly moving towards more efficient “colorless” operation, meaning that ROADM add and drop ports are not limited to fixed predetermined wavelength channels. Instead, a tunable transmitter can connect any wavelength to any add port and the ROADM can route any wavelength to any drop port receiver. Colorless operation improves the efficiency of valuable line cards and transponders in coherent transport networks, where a single DWDM channel carries 100Gbps of information.
In coherent optical communications systems the colorless channel drop operation is enabled by using the local oscillator laser and the VICR to select the receive channel, eliminating the need for a terminal optical filter. The VICR then detects the signal channel to which the local oscillator laser is matched, but all other channels are outside the device bandwidth. In colorless applications the remaining channels are not filtered out optically, so the incoming signal power to the VICR can vary significantly depending on how many other channels are present, resulting in up to 100 times higher power falling on the receiver than in the single channel case. The NeoPhotonics VICR integrates a PIC variable optical attenuator that provides control and stability to the input signal. In both colorless and conventional optically filtered systems, the VOA also improves performance by allowing system selection of the optimal operating point to enhance OSNR and reduce the effects of optical impairments such as polarization dependent loss (PDL).
“We are pleased to add the VICR to our extensive line of PIC based
intradyne coherent receivers,” said
In addition,
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Dr.
David Piehler , Chief Scientist, Access Products, will discuss the topic, “Statistical WDM is antifragile,” in Workshop OM1D: Can Access Networks Afford to be Wavelength Agile?,Monday, March 18 th,9:00 AM - 12:00 PM in Room: 303D. This workshop will examine architectural and cost considerations in the coming multi-wavelength PON systems and optical distribution networks (ODN). -
Also on Monday,
4:00 PM - 6:00 PM in Room: 304C, Dr. Piehler will give a presentation on “Scaling PON OLT port utilization – HFC style,” in connection with Panel NM3J: PONs as Used by MSOs. This panel will consider the role of PON architectures for commercial and residential services in MSO networks and the timing of PONs in the residential sector. -
Dr.
Winston Way , Chief Systems Architect, and two co-authors from NEC Laboratories America, will present the paper: “Contention resolution within colorless and directionless ROADM,”Wednesday March 20 th,8:00 AM in Room: 304C.
About
© 2013
Forward Looking Statements
This press release contains forward-looking statements. Readers are
cautioned that these forward-looking statements are only predictions and
may differ materially from actual future events or results. These
forward-looking statements involve risks and uncertainties, as well as
assumptions and current expectations. The company’s actual results and
the timing of events could differ materially from those anticipated in
such forward-looking statements as a result of these risks,
uncertainties and assumptions. The risks and uncertainties that could
cause the company’s results to differ materially from those expressed or
implied by such forward-looking statements include but are not limited
to: acceptance by customers of the VICR or the timing of such acceptance
may not be as the company expects; the timing of or costs related to the
development, general availability and performance and production of the
VICR may not be as the company expects; the demand for the VICR may be
volatile or lower than the company expects; demand for the VICR could
decrease from the company’s expectations due to general conditions in
the telecommunications equipment industry, changes in network
architectures, or the world economy generally, and other risks and
uncertainties described more fully in the company’s documents filed with
or furnished to the
Source:
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