ModBox-1310nm-1550nm-28Gbaud-PAM41310 nm & 1550 nm , 28 Gbaud PAM-4 Reference Transmitter

ModBoxThe ModBox-1310nm-1550nm-28Gbaud-PAM4 is a dual wavelength 1310 nm
and 1550 nm Linear Reference Transmitter that generates excellent quality optical
data streams PAM-4 up to 28 Gbaud and NRZ up to 28 Gb/s. The transmitter
produces very clean eye diagrams with high SNR and fast rise and fall times. It also
provides the flexibility of adjusting the extinction ratio for vertical eye closure.
The ModBox-1310nm-1550nm-28Gbaud-PAM4 provides R&D and Productionengineers with a user friendly turn-key instrument delivering state of the art
performance. It is being used in optical telecommunications laboratories andproduction test beds.
The equipment incorporates a modulation stage based on a chirp-free LiNb03
Mach-Zehnder modulator, coupled with a high performance RF driver and an
automatic bias control circuitry. The ModBox integrates two DFB lasers centeredat 1310 nm and 1550 nm.

FEATURES

In addition to the dual wavelength, iXblue offers reference transmitters in the full• 1310nm & 1550nm Reference Transmitter O-band, full C-band and at 850 nm.

• PAM-4 up to 28 Gbaud• NRZ up to 28 Gb/s

Performance Highlights• 1310nm & 1550nm lasers embeddedParameter• Reliable & reproducible measurements

Operating wavelength• High eye diagram stability

Modulation format• Extinction Ratio Adjustable

Modulation bandwidth

APPLICATIONSMinTypMax

1310 nm & 1550 nm
PAM-4, NRZ
PAM-4 up to 28 Gbaud, NRZ up to 28 Gb/s

Modulated output power @1310 nm

2 dBm

3 dBm

-

Modulated output power @1550 nm

5 dBm

6 dBm

-• Transmission system test
• Components characterization• Production test
• R&D laboratories
OPTIONS• Tunable C-band laser• Multi-Channel• 850 nm, O-band, C-band

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ModBox-1310nm-1550nm-28Gbaud-PAM41310 nm & 1550 nm , 28 Gbaud PAM-4 Reference Transmitter

ModBoxFunctional Block Diagram

1310 nm
Mux

Laser output

1550 nm

Mod input

Modulator

DCRFMBC

DriverRF input

Mod output

The ModBox-1310nm-1550nm-28Gbaud-PAM4 features:•A chirp-free X-cut LiNb03 (Lithium Niobate) Mach-Zehnder Intensity modulator. It is selected for its wide

optical bandwidth, and its high electro-optic bandwidth and flat, low ripple, electro-optic response curve.
•A high bandwidth and highly linear RF driver.
•A modulator bias controller. The internal LiNbO3 modulator is a X-cut device with very low drift. However anautomatic bias control circuit is provided to lock the operating point of the modulator at the quadrature point whatever theenvironmental and optical (laser power and wavelength) conditions. The MBC ensures a highly stable optical output signal toprovide reliable and reproducible measurements.
•Two 1310 nm and 1550 nm low RIN lasers are integrated by default (C-Band tunable laser in option). For

convenience, the two lasers arre multiplexed and an external patch cord is delivered to connect the laser output to the modulator
input optical port. Wavelength selection (1310 nm or 1550 nm) and laser power are tunable through the front panel controls or
the ModBox software interface.
The ModBox-1310nm-1550nm-28Gbaud-PAM4 is controlled from the front panel via the Smart interface with a simple rotaryknob and keypad. The Smart manual interface allows for bias control circuit, RF driver and laser settings. It comes also with asimple GUI solution, Windows based and implemented through the USB interface of the user PC.

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ModBox-1310nm-1550nm-28Gbaud-PAM41310 nm & 1550 nm , 28 Gbaud PAM-4 Reference Transmitter

ModBoxInput Electrical Specifications

User supplied, not a ModBox specification

Parameter

SymbolCondition

MinTypMax

Unit

Data-rate

PRBS

PAM-4 electrical input signal0.1-28Gbaud

NRZ electrical input signal0.1-28Gb/s

Input voltage

VIN

AC coupled - 50 W - Linear operation-0.2000.300

VppJitter

JRMS--11.2

ps

Rise / fall timetr / tf

20 % - 80 %-

1318

ps

Corss-point-

NRZ mode

455055%

Input Optical Specifications

User supplied, not a ModBox specification

Parameter

SymbolCondition

MinTypMax

Unit

Operation

lCW

1310

1550

1565

nm

Polarization--PowerP

1310 nm / 1550 nm-

10 / 16-dBm

Side Mode Supression Ratio

SMSR-

30--dBSpectrum linewidthDl

FWHM-0.51MHz

Polarization Extinction ratio

PER--19-dBMax

Unit

Output Optical Specifications
Parameter

Linear and controlled-Specifications below are given with embedded 1310 nm and 1550 nm lasers.

SymbolCondition

MinTypEmbedded Laserl

DFB integrated by default

1310 nm & 1550 nm-

Data format--

PAM-4 & NRZ-

Data-rate-

PAM-4 electrical input signal

0.1-

28Gbaud

NRZ electrical input signal

0.1-

28Gb/sWith embedded 1310 nm laser

23-dBmWith embedded 1550 nm laser

56-dBmJRMS

RMS Jitter, NRZ mode-0.8-psJPP

Peak-to-Peak Jitter, NRZ mode

-5-

ps

Minimum dynamic extinction ratio

DERMIN

By NRZ data input level adjustment

2--

dB

Maximum dynamic extinction ratio

DERMAX

By NRZ data input level adjustment-1013dB

Dynamic Signal to Noise Ratio

SNR

NRZ mode

-

12-

dB

Rise / fall timetr / tf

NRZ mode-15-

psCrosspoint-

NRZ mode

45

5055%

Optical return loss

ORL-

-40

-45

-

dB

Side Mode Supression Ratio

SMSR-

30-

-dBSpectrum linewidthDl

FWHM-1-

MHzOutput modulated power

Jitter

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ModBox-1310nm-1550nm-28Gbaud-PAM41310 nm & 1550 nm , 28 Gbaud PAM-4 Reference Transmitter

ModBox1310 nm & 1550 nm DFB Lasers Specifications The laser 1310 nm & 1550 nm lasers are embedded by default.
Parameter

SymbolCondition

MinTypMax

Unit

Lasers type--DFB-

Wavelengthl

Embedded by default

1310 nm & 1550 nm-

Wavelength laser tuning range-

Diode chip temperature control-0.81nm

Optical output power adjustment-

Diode Injection current control

0-100%Spectrum linewidth

Dl

FWHM

12-

MHz

Side Mode Suppression Ratio

SMSR-

35--dB

Optical Return Loss

ORL-

30--dB

SymbolCondition

MinTypMax

Unit

Wavelengths laser tuning rangel-

1527.60-

1565.50

nm

Optical output power

-CW-

15-

dBm

Optical output power adjustment-

Diode Injection current control

0-

100%

Spectrum linewidth

Dl

FWHM, instantaneaous-

100-

kHz

Side Mode Suppression Ratio

SMSR-

4055-

dB

Optical Return Loss

ORL-

30-

-dB

Tunable C-Band Laser Specifications Option
Parameter

Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are absolute stress ratings only. Functional operation of
the device is not implied at these or any other conditions in excess of those given in the operational sections of the data sheet. Exposure to absolute maximum
ratings for extended periods can adversely affect device reliability.
Parameter

Symbol

Min

Max

Unit

Input voltage

VIN-1

Vpp

Optical input power

OPin-20dBm

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ModBox-1310nm-1550nm-28Gbaud-PAM41310 nm & 1550 nm , 28 Gbaud PAM-4 Reference Transmitter

ModBoxElectrical Eye Diagram

PAM-4 28 Gbaud

NRZ 28 Gb/s

Eye Diagrams - PAM-4 25 Gbaud From ModBox-1310nm-1550nm-28Gbaud-PAM4Using internal 1310 nm laser source

Using internal 1550 nm laser source

Eye Diagrams - PAM-4 25 Gbaud From ModBox-1310nm-1550nm-28Gbaud-PAM4Using internal 1310 nm laser source
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ModBox-1310nm-1550nm-28Gbaud-PAM41310 nm & 1550 nm , 28 Gbaud PAM-4 Reference Transmitter

ModBoxInterfaces, Dimensions and ComplianceInterfaces
OpticalPolarization maintaining fiber PM - FC/APC (by default, other connectors type in option)

RF inputSingle 1.85 mm female RF connector - 50 W

Control

Smart Interface (front panel), GUI (USB typeB)

Power supply

100-120V/220-240 automatic switch 50-60Hz (Rear panel)

EMC and optical norms

EN61326-1 Ed. 2006 / NF EN 60825-1 & EN 60825-2 Ed.2014

Dimensions / Weight

Rack 19" x 3U, Depth = 495mm / 3 kg

Ordering information			

ModBox-1310nm-1550nm-28Gbaud-PAM410-2017_PT_SP_ED0

1310nm-1550nm = 1310 nm & 1550 nm operation, embedded lasers
28Gbaud = Data-rate: NRZ up to 28 Gb/s - PAM-4 up to 28 Gbaud

Opt-TunC

TunC = Full C-Band Tunable laserThis laser comes instead of embedded DFB 1550 nm laser

Opt-YYYY = Output connectors, FA : FC/APC - FC : FC/UPC - SA : SC/APC - SC : SC/UPC

About us
iXBlue Photonics produces specialty optical fibers and Bragg gratings based fiber optics components and provides opticalmodulation solutions based on the company lithium niobate (LiNbO3) modulators and RF electronic modules.
iXBlue Photonics serves a wide range of industries: sensing and instruments, defense, telecommunications, space and fiberlasers as well as research laboratories all over the world.
Ixblue reserves the right to change, at any time and without notice, the specifications, design, function orform of its products described herein. All statements, specification, technical information related to theproducts herein are given in good faith and based upon information believed to be reliable and accurate
at the moment of printing. However the accuracy and completeness thereof is not guaranteed. No liability is assumed for any inaccuracies and as a result of use of the products. The user must validate all parameters for each application before use and he assumes all risks in connection with the use of the products

3, rue Sophie Germain
25 000 Besançon - FRANCE
Tel. : +33 (0) 381 853 180 - Fax : + 33 (0) 381 811 557
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