VIAVI MAP Multiport Tunable Filter Module (mTFX) for C-, Extended C- and L-Band
LCOS-based multiport tunable filter module for the VIAVI MAP platform with 6.25 to 5100 GHz bandwidth and up to 180 independent filters.
- Frequency range
- 191.15 to 196.25 THz (1527.61 to 1568.35 nm)
- Frequency range
- 190.55 to 196.675 THz (1524.304 to 1573.301 nm)
- Frequency range
- 186.10 to 191.05 THz (1569.19 to 1610.92 nm)
Overview
The VIAVI Multiple Application Platform (MAP) multiport tunable filter module (mTFX) is a test signal management module for 100G+ and coherent interfaces, sub-systems and system test. It is a modular instrument controlled over Ethernet or GPIB and can be managed directly from a PC-based automation system without specialized interface cards or complex libraries.
Based on liquid crystal on silicon (LCOS) technology, the mTFX combines tunable filter, variable attenuator, switch, power meter and DWDM multiplexer functions in one cassette. Using TrueFlex technology, filters are continuously tunable in center wavelength and bandwidth and are not locked to the ITU grid. Multiple parallel wavelength paths can be created without disrupting established connections, with sub-GHz resolution.
Control model
Control is divided into functional blocks. A virtual filter is defined by center wavelength, bandwidth, shape and attenuation, and a virtual switch routes the filter to a physical output port. Up to 180 (C-band) or 120 (L-band) virtual filters can be created and controlled independently; a slice of spectrum can be assigned to only one output port at a time, while multiple slices can go to the same port. Operation is available through a GUI on the MAP-300 or SCPI remote commands.
Operating modes
Channel mode controls individual virtual filters with square-top or Gaussian shapes and includes an automated express function. With the internal power monitor option, Peak Find, Peak Search and Peak Up functions become available. Full span mode operates the unit as a single-port programmable filter for shaping the full spectrum, for example to generate frequency combs, gain tilt and gain shape corrections; up to five custom shapes can be uploaded. Shaped mode combines both, applying the full-span attenuation shape to the virtual filters.
Ports and platform
The cassette provides two output ports by default, with four or eight ports available through software licenses. A ninth port can carry an embedded optical channel monitor offered as a variant. The mTFX belongs to the LightDirect module family and is compatible with the MAP-300 and MAP-220 mainframes.
Key Features
- Tunable filter bandwidth adjustable from 6.25 to 5100 GHz with 0.5 GHz resolution
- ±3.5 GHz typical center frequency accuracy in C- and L-band
- Up to 180 C-band or 120 L-band independent filters, each with independent attenuation and output port assignment
- Filters can be added and removed without disturbing existing connections
- Filters continuously tunable in center wavelength and bandwidth, not locked to the ITU grid
- Square top and Gaussian filter shapes
- Channel, full span and shaped control modes
- Internal power meter option with automated Peak Find, Peak Search and Peak Up functions
- Automated peak tracking without loss of transmitted power
- GUI and SCPI control interfaces
- Two output ports standard, optional licenses for 4 or 8 output ports
- Ethernet or GPIB control from PC-based automation systems
Specifications
|
Frequency range
C-Band
|
191.15 to 196.25 THz (1527.61 to 1568.35 nm) |
|---|---|
|
Frequency range
Extended C-Band
|
190.55 to 196.675 THz (1524.304 to 1573.301 nm) |
|
Frequency range
L-Band
|
186.10 to 191.05 THz (1569.19 to 1610.92 nm) |
| Number of active output ports |
2
4 or 8 ports available with additional software license
|
|---|---|
|
Number of independent user defined filters
C-Band
|
180 (maximum) |
|
Number of independent user defined filters
Extended C-Band, L-Band
|
120 (maximum) |
| Standard filter shapes |
Square top and Gaussian top
Valid up to 20 dB attenuation
|
| Square top filter bandwidth |
6.25 to 5100 GHz
Specified at 0.2 dB loss level relative to minimum filter insertion loss. Web page states 16 to 5100 GHz; datasheet value used
|
| Maximum bandwidth for Gaussian filter shape | 250 GHz |
| Center wavelength and bandwidth resolution | 0.5 GHz |
| Center frequency accuracy |
± 3.5 GHz (typical), ± 5 GHz (maximum)
Center wavelength measured at 3 dB and 10 dB levels relative to minimum loss in the filter
|
|
Insertion loss, port 1 standard configuration
C-Band, Extended C-Band
|
< 6.0 dB
Includes one optical connector; depolarized light source; filters with bandwidth >20 GHz. Web page states <5.5 dB; datasheet value used
|
|---|---|
|
Insertion loss, port 1 with power monitor option
C-Band, Extended C-Band
|
< 6.5 dB
Includes one optical connector; depolarized light source; filters with bandwidth >20 GHz
|
|
Insertion loss, ports 2 to 8
C-Band, Extended C-Band
|
< 6.5 dB
Includes one optical connector; depolarized light source; filters with bandwidth >20 GHz
|
|
Insertion loss, all ports and configurations
L-Band
|
< 7.2 dB
Port 1 standard, port 1 with power monitor and ports 2 to 8
|
| Short-term insertion loss stability, averaging time < 10 ms |
± 0.05 dB
Depolarized source, center wavelength, no attenuation; 3σ over 20,000 samples
|
| Short-term insertion loss stability, averaging time > 10 ms |
± 0.01 dB
Depolarized source, center wavelength, no attenuation; 3σ over 20,000 samples
|
| Insertion loss repeatability |
± 0.025 dB
Min-max, activating and deactivating filter at the same wavelength on the same output port
|
| PDL |
< 0.3 dB (typical)
From 0 to 10 dB attenuation; valid at Gaussian minimum loss or over 80% of square top bandwidth
|
| Return loss |
> 30 dB
Excludes directivity; measured into common port with all other channels routed to outputs
|
|
Single filter, average out of band rejection
C-Band, L-Band
|
> 35 dB
Ratio of filter minimum IL to background maximum over adjacent-channel spectrum ranges
|
|
Single filter, average out of band rejection
Extended C-Band
|
> 40 dB
Listed in the Extended C-Band column of the datasheet table
|
| Maximum input power, single 12.5 GHz channel | 9 dBm |
|---|---|
| Maximum input power, broad band source | 24 dBm |
| Max attenuation range, Gaussian profile | 10 dB |
|
Max attenuation range, square top profile
C-Band, Extended C-Band
|
20 dB |
|
Max attenuation range, square top profile
L-Band
|
15 dB |
| Attenuation setting resolution | 0.1 dB |
| Group delay variation, Gaussian top |
< 5.0 ps
Over 3 dB bandwidth
|
|---|---|
| Group delay variation, square top |
< 4.0 ps
Over 80% of bandwidth
|
| Differential group delay, Gaussian top |
< 2.0 ps
Over 3 dB bandwidth
|
| Differential group delay, square top |
< 0.3 ps
Over 80% of bandwidth
|
| Slot width |
Single slot
Web page states L-band is offered in a dual slot; datasheet lists single slot for all bands
|
|---|---|
| MAP mainframe compatibility | MAP-300 and MAP-220 |
| Warm-up time | 60 min |
| Calibration period | 1 Year |
| Safety compliance |
CE, CSA/UL/IEC61010-1, plus LXI class C requirements
When installed in a MAP chassis
|
| Operating temperature | 0 to 45°C |
|---|---|
| Storage temperature | -30 to 60°C |
| Operating humidity | Maximum 85% Relative Humidity, non-condensing from 10 to 40°C |
| Dimensions | 4.1 x 13.3 x 37.0 cm (1.6 x 5.24 x 14.6 in) |
| Weight | 1.44 kg (3.174 lbs) |
Specifications are taken from the manufacturer's documentation. See the datasheet for complete and current values.
Applications
- Photonic communication test automation
- 100G+ coherent interface testing
- Transmitter dispersion, eye mask and receiver sensitivity testing
- ROADM node emulation
- Signal extraction or insertion during DWDM system testing
- Amplifier gain spectrum management and load tone generation
- OSNR measurements
Options & Accessories
| Option | Description |
|---|---|
| MTFX-C211C008C0-M100-MYY | C-band multiport tunable filter SMF — Without power monitor; YY = connector code |
| MTFX-C311C008C0-M100-MYY | Extended C-band multiport tunable filter SMF — Without power monitor; YY = connector code |
| MTFX-C211C008CM-M100-MYY | C-band multiport tunable filter SMF with power monitor — YY = connector code |
| MTFX-C311C008CM-M100-MYY | Extended C-band multiport tunable filter SMF with power monitor — YY = connector code |
| MTFX-C311C008L0-M100-MYY | L-band multiport tunable filter SMF — Without power monitor; YY = connector code |
| MTFX-C311C008LM-M100-MYY | L-band multiport tunable filter SMF with power monitor — YY = connector code |
| MFP | FC/PC connector type |
| MFA | FC/APC connector type |
| MSC | SC/PC connector type |
| MSU | SC/APC connector type |
| MTFX4PORT | Expansion License from 2 TO 4 PORTS |
| MTFX8PORT | Expansion License from 2 TO 8 PORTS |
| AC500 | FC/PC-FC/PC Universal Connector Adapter — Replacement mating sleeve |
| AC501 | FC/PC-SC/PC Universal Connector Adapter — Replacement mating sleeve |
| AC502 | FC/APC-FC/APC Universal Connector Adapter — Replacement mating sleeve |
| AC503 | FC/APC-SC/APC Universal Connector Adapter — Replacement mating sleeve |
