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产品名称:

1550nm 40G DQPSK Optical Modulaion Unit

上市日期: 2019-01-17
建议销售价: 0

Product introduction

The KY-MU-15-DQPSK series DQPSK optical modulation unit is an instrument developed by our company to realize 40Gbps QPSK optical signal modulation. The modulation unit can work in C+L band, and integrates electro-optical dual parallel IQ modulator, I&Q electrical signal amplifier and corresponding bias point control circuit. Different working points can be selected on the front panel according to requirements. The LED display area displays the bias point lock status in real time, which can make the modulation performance of the electro-optic intensity modulator no longer affected by external environmental temperature, vibration and other factors, and work stably at QUAN +/-, NULL or PEAK points for a long time.

This product is mainly used in scientific research, high-speed optical fiber communication systems, microwave photonic links and other fields. It can also be used as a standard optical signal generator for experiment or product testing.

Key Features

l  Wavelength C&L

l  Integrated IQ electro-optic modulator, electric amplifier and bias point control circuit

l  Low insertion loss

l  High modulation bandwidth >22GHz

l  Multiple modulation methods QPSK/QAM/OFDM

l  Working point adjustable

l  Drive gain adjustable

l  Convenient to use

Applications

l  High-speed optical fiber communication systems

l  Scientific research

l  Microwave photonic links

l  Product testing

Parameters

Parameters

Symbol

Min.

Typ.

Max.

Unit

Optical Parameters

Wavelength

l

1525


1570

nm

Insertion loss*

IL


7

9

dB

Optical return loss

ORL



-45

dB

Switch extinction ratio@DC

ER@DC

22



dB

Fiber

Input


Panda PM Fujikura SM 15-P-8/125-UV/UV-400

Output


Panda PM Fujikura SM 15-P-8/125-UV/UV-400

Electrical Parameters (Test conditions are bias points Q+/-)

Bandwidth (-3dB) I&Q

S21

22

25


GHz

Rate


1G


22.5G

bps

Input signal format


NRZ

Input signal amplitude I&Q

Vi

0.25

0.4


Vpp

Modulator half-wave voltage@43Gbps I&Q


3.5


V

Electrical amplifier gain I&Q

G

25



dB

Electrical return loss I&Q

S11


-12

-10

dB

Input resistance I&Q

ZRF


50


W

Bias Point Feedback Circuit

Jitter period



1


KHz

Jitter amplitude



1%Vπ



Q point phase stability


-2


+2

°

Lock time


10



s

Other Parameters

Input electrical signal interface


K (f)

Optical interface

Input


FC/APC PM Slow axis alignment

Output


FC/APC PM Slow axis alignment

Voltage

VDC

AC 220

V

Dimension

LxWxH

270x300x90

mm

Communication


RS232

Display area content


I&Q electric amplifier gain/ Bias-end Vpi

Real-time bias voltage/Bias point lock status

* Loss test is measured when the working point is at the Peak point.


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