Fujitsu DQPSK User Manual

DQPSK 40Gbps LiNbO

DQPSK 40Gbps LiNbO

External Modulator

External Modulator

3

3

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

Driving Voltage (2Vπ) @22Gbps
Extinction Ratio

at Low Frequency

α

Parameter (Typ.)

Parent MZI (*2)
Child MZI

89.8 x 15 x 9.5 mm / 3.54 x 0.59 x 0.37 inchesPackage Size (L x W x H)

FTM7960EXPart Number

> 25 GHzOptical Bandwidth (-3dB)

1530 to 1610 nmOperating Wavelength

< 4.0 V (*1)

> 22 dB
> 20 dB
< 9.0 dBInsertion Loss

0 (*1)

50 ohmRF Impedance (Typ.)

0.005 to 0.025 A/WMonitor PD Responsivity

-5 to 75 ºCOperating Case Temperature

*1: at dual drive *2: Mach-Zehnder Interferometer

Characteristics

(1) Intensity Eye Pattern

10 ps/div.

(2) Phase Eye Pattern

360

270

180

Phase [deg.]

90

0

0

10 ps/div.

(3) Constellation

Fujitsu Limited

Optical Components Unit
Sales Department

1-1 Kamikodanaka 4-chome, Nakahara-ku, Kawasaki, 211-8588, Japan (Company Mail No. H0913)
Tel: [phone], Fax: [phone]
E-mail: [e-mail]
http://www.fujitsu.com/global/services/telecom/optcompo

Specifications are subject to change without prior notice.

January, 2008