TECHNOLOGIEMXDO-LN-20

1550 nm band Analog Dual Outputs Modulator
Preliminary data-sheet

SDelivering Modulation Solutions

Modulator
The MXDO-LN-20 is a lithium niobate (LiNb03) intensity modulator with dual
fiber outputs designed for analog applications at frequencies up to 20 GHz.
The MXDO-LN-20 specific design offers an excellent balance of the twocomplementary fiber outputs.
The X-cut of this Mach-Zehnder modulator confers it an unmatched stability ina wide range of operational conditions, as well as a zero chirp performance.
The MXDO-LN-20 is ideally suited for 20 GHz analog communications suchas RF over fiber and microwave photonics using differential detection.

Features• Dual complementary optical outputs• High EO bandwidth• High stability

Performance Highlights
Parameter

Min

TypMaxUnit

Operating wavelength

1530

-

1580

nm

Insertion loss

-4-dB

• Antenna remoting

Electro-optical bandwidth

1820-

GHz

• Radar / Satcom

Vp RF @50 kHz

-5.5-

V

• Test and measurement

Output coupling rate-50-%• Up to 20 GHz high frequency links

2nd harmonic suppression ratio-70-dB

Input 3rd order intercept-30-dB

Applications

Options

Specifications given at 25 °C, 50 W, 1550 nm• Hermetic sealing• External monitoring photodiode

Related equipments• DR-AN analog RF amplifiers• MBC ditherless Bias Controllers

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MXDO-LN-20

1550 nm band Analog Dual Outputs Modulator
Preliminary data-sheet

SModulator
Electrical Characteristics
Parameter

50 W RF input

SymbolCondition

MinTypMax

Unit

Electro-optic bandwidth

S21

RF electrodes, from 2 GHz

1820-GHz

Ripple S21

DS21

RF electrodes, f < 20 GHz

-

0.5

1dB

Electrical return loss

ES11

RF electrodes, f < 20 GHz--12-10dB

Vp RF @50 kHz

VpRF50 kHz

RF electrodes

-5.5

6V

Vp DC electrodes

VpDC

DC electrodes

-

7

7.5

V

RF input impedanceZin-RF--40-

W

DC input impedanceZin-DC--

1-

MW

Optical Characteristics

All specifications given at 25°C, 1550 nm, unless differently specified

Parameter

SymbolConditionMin

TypMaxUnit

Crystal--Operating wavelengthl-

1530

1550

1580nmInsertion lossILWithout connectors-45dB

DC extinction ratio

ERMeasured with narrow source
linewidth < 200 MHz

2022-dB

Output coupling rate

CPer channel, @Quad,
Pi=1,2 / (P1 + P2) *-50-%

Balance coupling rate

DCOver 1530 nm - 1560 nm-5-%Optical return loss

ORL--40-45-

dB

Chirpa--0.1

00.1

-

Lithium Niobate X-Cut Y-Prop* P1 and P2 are defined as the modulator outputs

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

SymbolMinMaxUnit

RF input power

EPin-28dBmBias voltage

Vbias-20+20V

Optical input power

OPin-20dBmOperating temperature

OT

0+70°C

Storage temperature

ST-40+85°C

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TECHNOLOGIEMXDO-LN-201550 nm band Analog Dual Outputs Modulator
Preliminary data-sheet

SModulator
MXDO-LN-20 Typical S21 Curve

Electro-optical S21 (dB)

50-5-10-15-200510152025

2025

Frequency (GHz)MXDO-LN-20 Typical S11 Curve
0-5S11 (dB)

-10-15-20-25-30
-35
05

1015

Frequency (GHz)

Modulator P1 and P2 Optical Outputs versus VRF

P1P1

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CHNOLOGIEMXDO-LN-20

1550 nm band Analog Dual Outputs Modulator
Preliminary data-sheet

SModulator
Mechanical Diagram and pinout

All measurements in mm

PortFunction

NoteIN

Optical input port

Polarization maintaining fiber, Corning PM 98-U25A,
Length 1.5 meter. Buffer diameter 900 mm

OUT

Optical output port

Polarization maintaining fiber, Corning PM 98-U25A,
Length 1.5 meter. Buffer diameter 900 mm

RFRF input port

Wiltron female K (SMA compatible)

1GroundPin feed through diameter 1.0 mm

2DC

Pin feed through diameter 1.0 mm

3, 4Not connected-Ordering information																																MXDO-LN-20-XX-Y-Z-AB-CD

XX = External monitoring PD : 00 No photodiode PD with photodiodeY = Input fiber : P Polarisation maintaining S Standard single mode
Z = Input fiber : P Polarisation maintaining S Standard single mode
AB = Output connector : 00 bare fiber FA FC/APC FC FC/SPC
CD = Output connector : 00 bare fiber FA FC/APC FC FC/SPC
Note : optical connectors are Seikoh-Giken with narrow key or equivalent

Optional external monitoring PDParameter
Tap
Photodiode responsivity
Cut off frequency
Photodiode reverse voltage

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Condition

MinTypMax

Unit--5-%

Relative to optical power in fiber-9-mA/W@ -3 dB-35-MHz--5-V

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TECHNOLOGIESMXDO-LN-20

1550 nm band Analog Dual Outputs Modulator
Preliminary data-sheet

Modulator
Related equipments & Examples of application

Analog transmission
The DR-AN is a family of wideband RF amplifier modules designed for analog applications at frequencies up to 36 GHz.
They are characterized by a low Noise Figure and a linear transfer function and they match with MXDO-LN-20 typemodulator.

Modbox-AN-Tx and ModBox-AN-Rx are a family of turnkey optical transmitters andreceivers for analog applications.
Analog ModBoxes operate and receive from low frequencies up to 40 GHz andfrom 780 nm up to 1580 nm for high performances transmission.

About us
Photline Technologies is a provider of Fiber Optics Modulation Solutions based on the company LiNb03 modulatorsand high-speed electronics modules. Photline Technologies offers high speed and high data rate modulation solutions
for the telecommunication industry and the defense, aerospace, instruments and sensors markets. The products
offered by the company include : comprehensive range of intensity and phase modulators (800 nm, 1060 nm, 1300nm, 1550 nm), RF drivers and modules, transmitters and modulation units.
Photline Technologies reserves the right to change, at any time and without notice, the specifications, design,function or form of its products described herein. All statements, specification, technical information related
to the products herein are given in good faith and based upon information believed to be reliable andaccurate at the moment of printing. However the accuracy and completeness thereof is not guaranteed. Noliability 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.

ZI Les Tilleroyes - Trépillot
16, rue Auguste Jouchoux - 250000 Besançon - FRANCEtél. : +33 (0) 381 853 180 - fax : + 33 (0) 381 811 557
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V1, PT-April-2011

The MBC-DG-BT is a bench top automatic bias controller specially designed to lock the operating point of LiNb03 MachZehnder modulators and ensure a stable operation over time and environmental conditions.