Dual Electrode LN Intensity Modulator

5Gbps,10Gbps Model Specifications (1/2)

Model
 T.DE1.5-5-Y-Z
 T.DE1.5-10-Y-Z
Modulation speed
 5Gbit/s
 10Gbit/s
Operating wavelength
 1.55µm
Insertion loss@DC
 </=6dB
Drive voltage(Vπ)*1@1KHz
 </=4.5Vp-p
 </=5.0Vp-p
Optical bandwidth*2
 >/=4GHz
 </=8GHz
ON/OFF extinction ratio@DC
 >/=20dB
Polarization extinction ratio*3@DC
 >/=20dB
Optical return loss
 >/=30dB
Maximum input power
 10mW
Electrode impedance
 Approx.50Ω
RF connector
 K-connector
Optical fiber
 Input
 0.9mmΦ PMF
Output
 0.9mmΦ PMF or SMF
Fiber lead length
 Min0.7m(Input & Output)
Operating temperature
 10~40ºC
Polarizer
 Output side

*1: Measured at 1KHz with the use of one electrodeonly. Push-Pull Drive requires the half of the described voltage on both arms.
*2: 3dB down(130MHz reference)
*3: This specification is only available for PMF output.

Package Size



Ordering Information


*1: When Other O is selected in the above ordering code, please specify your requirements with as much detail as possible.
*2: The Polarization state of input and/or output PMF is slow axis aligned.




        Dual Electrode LN Intensity Modulator

20Gbps Model Specifications (2/2)

Model
 T.DEH1.5-20-ADC-Y-Z
Modulation speed
 20Gbit/s
Operating wavelength
 1.55µm
Insertion loss@DC
 </=6dB
Drive voltage(Vπ)*1@1GHz
 </=6.5Vp-p
Optical bandwidth*2
 >/=18GHz
ON/OFF extinction ratio@DC
 >/=20dB
Polarization extinction ratio*3@DC
 >/=20dB
Optical return loss
 >/=30dB
Maximum input power
 20mW
Electrode impedance
 Approx.50Ω
RF connector
 K-connector
Optical fiber
 Input
 0.9mmΦPMF
Output
 0.9mmΦPMF or SMF
Fiber lead length
 Min0.7m(Input & Output)
Operating temperature
 -5~70ºC
Polarizer
 Output side
*1: Measured at 1GHz with the use of one electrodeonly.
*2: 3dB down(1GHz reference)
*3: This specification is only available for PMF output.

Package size (Hermetically-sealed)



Ordering Information


*1: When Other O is selected in the above ordering code, please specify your requirements with as much detail as possible.
*2: The Polarization state of input and/or output PMF is slow axis aligned.


         Dual Electrode LN Intensity Modulator

Typical Data

1, Optical Bandwidth of Dual Electrode LN Intensity modulator


2, Electrical Characteristics of Dual Electrode LN Intensity modulator (S11, S21)


3, Eye Pattern of Dual Electrode LN Intensity modulator

         5Gbps, 10Gbps Dual Electrode LN Intensity Modulator

Recommended configuration

* This recommended configuration is only for giving general ideas. Please refer to the operation manual which is included with the product when you use the product. The operation manual shows you the appropriate way to use with any note.

(1) For proper adjustment, make optical connection prior to electrical connection otherwise the product may get damage.
The optical connection between the product and a power meter, or between the product and a laser source should be made when laser source is off.

 Any risk of making connection while laser source is working, such as loss of eyesight, should be at the user.

(2)
 The input fiber of the modulator must be optically adjusted with an optical laser source.
The schematic diagram is illustrated below.
(3)
 The output fiber of the modulator must be optically adjusted with a power meter.
The schematic diagram is illustrated below.
(4)
 You can work the laser source.
(5)
 Adjust the input side connector appropriately so that the input light power to the module is maximized.
The internal polarizer will get damage by improper adjustment and cause unexpected optical loss.
(6)
 DC Supply, Bias T, Driver are connected to RF input connector while DC Block and Termination is connected to other RF connector.
The schematic diagram is illustrated below.


*Alpha parameter
This product can control the alpha parameter. Alpha is approximately 0 when complementary srive. Alpha is approximately 1 when single channel drive



         20Gbps Dual Electrode Intensity Modulator

Recommended configuration

* This recommended configuration is only for giving general ideas. Please refer to the operation manual which is included with the product when you use the product. The operation manual shows you the appropriate way to use with any note.

(1) For proper adjustment, make optical connection prior to electrical connection otherwise the product may get damage.
The optical connection between the product and a power meter, or between the product and a laser source should be made when laser source is off.

 Any risk of making connection while laser source is working, such as loss of eyesight, should be at the user.

(2)
 The input fiber of the modulator must be optically adjusted with an optical laser source.
The schematic diagram is illustrated below.
(3)
 The output fiber of the modulator must be optically adjusted with a power meter.
The schematic diagram is illustrated below.
(4)
 You can work the laser source.
(5)
 Adjust the input side connector appropriately so that the input light power to the module is maximized.
The internal polarizer will get damage by improper adjustment and cause unexpected optical loss.
(6)
 DC Supply is connected. The schematic diagram is illustrated below.


*This product is a AC(RF)/DC separated type, thus you do not need Bias T, DC Block and Termination.
*Alpha parameter
This product can control the alpha parameter. Alpha is approximately 0 when complementary drive. Alpha is approximately 1 when single channel drive.



Data Sheet