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Product Name : WaveProcessor Array

Module code : WPA-44, WPA-8, WPA-12, WPA-900

Contents

SANTEC Corporation has introduced the high resolution WPA (WaveProcessor^TM Arrays) component models (WPA-8, WPA-12, WPA-44) and the test instrument model (WPA-900), based on LCOS (Liquid Crystal on Silicon). The sub-GHz frequency resolution has achieved by newly invented LCOS moving weighted technique (PAT-P). The sub-GHz resolution is effective to maximize the spectral efficiency in next generation flexible-grid ROADM (Reconfigurable Optical Add Drop Multiplexer). The WPA products will be showcased at the Optical Fiber Communication Conference (OFC) in Los Angeles, March 8-10, in SANTEC’s booth #1919.

Santec Corporation was established in 1979. It is headquartered in Komaki, Japan and has subsidiaries in America (Santec U.S.A. Corporation) and China (Santec (Shanghai) Co., Ltd.). It is listed on the JASDAQ Market – a section of the Osaka Securities Exchange. The company employs 120 staff and serves customers in more than 30 countries; these include most of the world’s major telecommunications companies and telecommunication system manufacturers. Santec’s products include a broad range of optical components and tunable laser light sources for the optical fiber industry, together with a range of fiber optic test and measurement instruments.

Further Information

For further information about Santec Corporation or any of its products, please contact the International Sales and Support Division at the address below or by email to info@santec.com.

Information is also provided through the Internet on Santec’s home page: www.santec.com.

Product Name : WaveProcessor Array

Module code : WPA-44, WPA-8, WPA-12, TFA-8

【Background】Multi-degree and highly functional devices have been desired for NextG.-ROADM (next generation Reconfigurable Optical Add Drop Multiplexer) to support flexible and intelligent OTNs (optical transport networks) for a variety of IP-based applications such as, cloud-computing, smart-grid, and high capacity video broadcasting.

【Subjects】To realize the flexible and intelligent OTN, novel multi-functional photonic devices are essential in the physical (optical) layer for bandwidth demand. The NextG.-ROADM corresponds to the flexible photonic node will deploy multi-functional intelligent optical processing devices to support a variety of transmission formats such as conventional 10Gb/s, advanced formats of 100Gb/s, and 400Gb/s.

【New products】Array type of WaveProcessor^TM based on LCOS（Liquid Crystal on Silicon）¹⁾ has been developed. WaveProcessor^TM has one input port and one output port, in which the input optical signals are spectrally processed by the LCOS intelligently. The WaveProcessor^TM Arrays (WPA) are integrated multiple ports type of the WaveProcessor^TM. Each port is independently managed by the command-based user controls. The WPA based on LCOS is the first commercial product in the world. The WPA will provide drastic footprint downsizing in the next generation ROADM.

WPA-families have three major products.
High-end type of WPA-44 is deployed as a 4×4 WXC (Wavelength-crossconnect switch) in the next generation OTNs with colorless, directionless, and wavelength contentionless. The WPA-44 has a capability of 4 degree and 4 color add/drop ports. The WPA-44 has a function to control flexible signal processing in the LCOS processor. The dimension is (W)200 x (D)120 x (H)22 mm. The 4×4 WXC is the first integrated product in the world.

Middle-class of WPA-8 and WPA-12 are 8 and 12 port counts of the WaveProcessor^TM, which has multiple functions of channel bandwidth (BW) variables and attenuation (equalizing/blocking) in the firmware for ITU-T 50GHz spacing 96 channels. Highly integrated thin-package is available for 1U line-cards. The dimension is (W)200 x (D)120 x (H)16 mm with a low energy consumption.

Low-end type of TFA-8 (tunable filter array) is 8 port counts, which has channel selection function to select single channel from ITU-T 50GHz spacing 96 channels. The dimension is (W)200 x (D)120 x (H)16 mm. The TFA-8 is designed for colorless receivers in the drop ports.

SANTEC provides these WPA-families with high quality and long-term supplement condition using self-manufactured telecom-grade LCOS processor.

Samples of the WPA-families will be available from October 2010.

【Functions】

• Full control mode, which supports user programmable ITU-Grid free channel allocation using pixel-by-pixel LCOS controls in WPA-44.
• ITU-Grid mode, which supports bandwidth (BW) variables and attenuation (ATTN) functions as wavelength blocker arrays in the ITU-T 50GHz 96 channels in the WPA-44, WPA-8, and WPA-12.
• Channel selector function, in which single channel is selected from ITU-T 50GHz 96 channels in TFA-8.

【Applications】

• 4×4 WXC (4 degree, 4 color add/drop ports).
• Up-gradable Wave-processing in next generation ROADM.
• Tunable filters in the colorless receivers.

【Merit】

The LCOS based WPA families have many features and advantages, such as multi-functionality, flexible and intelligent managements, non-blocking and up-gradable capabilities, small-footprint, and most cost-effective with the benefit of high-reliable “No-moving parts” device based on LCOS.
The WPA-families contribute to develop a next generation photonic architecture, in which novel concept of frequency-division slot scheme or programmable Grid-free channel allocations are deployed to achieve high frequency utilization efficiency over the conventional ITU-T channel 50G/100GHz spacing.

Terms:
LCOS: Liquid crustal on Silicon. LCOS is a stacked structure, in which liquid crystal (LC) is sand-witched between Indium Oxides （ITO）transparent thin films coated on a glass and CMOS backplane. CMOS backplane is formed by the latest semiconductor process. A couple of Million micro-size pixels are formed on a Silicon wafer. Optical phase and polarization states are controlled by an external driving at low voltage for each pixel.

WPA families product lineup

(a)  WPA-44, (b) WPA-8, and (c) TFA-8（WaveProcessor^TM Array）.

Product Name :  MOVA-1
Santec, a leading manufacturer of optical components for the fiber optics and telecommunications industries, announces the availability of a new Variable Optical Attenuator with extremely low wavelength dependence. The product is designed specifically for applications where multiple wavelengths are attenuated simultaneously in a DWDM type transmission system. A typical example is in an EDFA type amplifier. Santec’s device is a modified version of its popular MOVA-1, MEMS based variable optical attenuator. The device is compact, low cost, and electronically adjustable using a simple analogue voltage. It has an attenuation range up to 40dB, a response time of <10ms, low insertion loss and low polarization dependence (PDL). It is fully qualified to TelcordiaGR-1221.

Features

Low loss, Low PDL, and Low Power Consumption
Up to 40dB Attenuation range
Compact Package
Telcordia GR-1221, GR-63 Qualified
RoHS Compliant

Applications

Gain Control for EDFA amplifier
Power Control and Equalization in Multichannel Systems

Santec, a leading manufacturer of fiber-optic components, sub-systems and optical test instruments, announces the release of a manual version of their popular bandwidth-adjustable tunable filter. This fiber-optic instrument incorporates a transmission filter whose wavelength and bandwidth can be adjusted independently. The filter has a flat-top shaped profile with excellent dispersion characteristics. The flexibility of the filter ensures suitability for a wide range of applications, however, it is particularly indispensable for filtering noise from 40Gb/s and higher data rate transmission signals.

The tuning range of the filter is from 1530nm to 1610nm. The bandwidth is adjustable from 0.2nm to 10nm. Custom filters such as notch filters, high or low pass filters are also available. Models with different wavelength ranges will also be developed in the future.

Features

Wavelength tuning range
Wavelength range
Bandwidth tuning
80nm
1530 – 1610nm (C+L Band)
0.2 – 10.0nm
Independently tunable wavelength & bandwidth
Flat-top filter shape

Applications

40Gb/s and higher data rate transmission test
DWDM channel selection
ASE noise filtering
Pulse shaping
Next generation bundle wavelength OXC

Santec, a leading manufacturer of fiber-optic components, sub-systems and optical test instruments announces the release of a new polarization extinction ratio (PER) meter, PEM-330. The instrument builds on the success of Santec’s PEM-320 model with an expanded wavelength range to cover the full wavelength band used in telecom applications from 1260nm to 1630nm.

The PEM-330 provides a simultaneous display of polarization extinction ratio (PER), optical power and polarization angle. These are the three critical parameters required when aligning polarization maintaining fiber to optical devices. The instrument is thus suitable for component manufacture as well as evaluation. This device has very high accuracy and a wide dynamic range. It also has communication ports to allow fully automatic fiber alignment and measurement.

Features

Wide wavelength range: 1260-1630nm

Simultaneous display of extinction ratio, optical power and polarization angle

40dB dynamic range for PER measurement

GPIB, RS-232C communication and analogue data output ports

Applications

Alignment of polarization axis of fiber for optical devices

Connectorized PMF patch cord evaluation

PMF pigtailed laser diode evaluation

The OTF-960 features a notch-type filter that is continuously tunable over either the C or L-band. The bandwidth is independently adjustable from 0.18 to 6.0nm (22.5 to 750GHz).

The product has been displayed at the ECOC 2008 exhibition held at the Brussels Expo Centre in Belgium, September 22 to 24.

Features

* Sharp filter edge (High figure of merit)
* Arbitrary optical filter designs available
* Tuning functions available
* Wavelength range: 40 nm (C-band or L-band)

Applications

* Bandwidth on demand, flexible network
* Next generation bundle wavelength OXC
* Adjustable and adaptive DWDM channel filtering
* Optical equalizer for high-speed optical signals
* Flexible test and measurement

A demonstration equipment utilizing this technology was shown in OFC/NFOEC 2008.

Features

* No moving parts
* Hermetic sealing package
* C-band or L-band at 100GHz or 50GHz spacing
* Wide passband with flat-topped channel profile
* Channel-by-channel attenuation and blocking
* High extinction ratio

Applications

* Reconfigurable OADM
* Network management (Protection and restoration)
* Dynamic Channel Power Equalization