DQPSK 40Gbps LiNbO3 External Modulator
General Description
• 40Gbps (22Gbaud) Mach-Zehnder modulator for “DQPSK”
transmission format
• Wide EO Bandwidth equivalent to conventional 40G Modulator
for each MZI’s
• Low drive voltage: < 4V (Dual drive)
• The DC bias is adjusted at the separate DC port of the
modulator.
• Built-in a monitor PD for auto bias control
• Applications:
- 40Gbps optical transmission equipment (DQPSK)
- DWDM optical transmission equipment
- Measurement equipment for high speed telecommunications
Specifications
Part Number
Optical Bandwidth (-3dB)
FTM7960EX
> 25 GHz
Operating Wavelength
1530 to 1610 nm
Driving Voltage (2Vπ) @22Gbps
< 4.0 V (*1)
Parent MZI (*2)
> 22 dB
Extinction Ratio
at Low Frequency
Child MZI
> 20 dB
Insertion Loss
< 9.0 dB
α Parameter (Typ.)
RF Impedance (Typ.)
Monitor PD Responsivity
0 (*1)
50 ohm
0.005 to 0.025 A/W
Operating Case Temperature
Package Size (L x W x H)
-5 to 75 ºC
89.8 x 15 x 9.5 mm / 3.54 x 0.59 x 0.37 inches
*1: at dual drive *2: Mach-Zehnder Interferometer
Characteristics
(3) Constellation
(2) Phase Eye Pattern
(1) Intensity Eye Pattern
360
270
180
90
0
0
10 ps/div.
10 ps/div.
Fujitsu Limited
Optical Components Unit
Sales Department
1-1 Kamikodanaka 4-chome, Nakahara-ku, Kawasaki, 211-8588, Japan (Company Mail No. H0913)
Tel: +81-44-754-3757, Fax: +81-44-754-3598
E-mail: optmdl-sales2@ml.css.fujitsu.com
January, 2008
Specifications are subject to change without prior notice.
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