Products

DWDM Optical Pre-Amplifier


Description

The product is multi-channel EDFA of high flattening and high stable output. The kernel component of the product is high availability pump laser and high-performance gain flattening filters. The product has high stable output, high gain flatness and high reliability by using unique APC (automatic power control) and ATC (automatic temperature control). The system’s flatness and noise can achieve the best optimization by the gain flattening filters of professional design. The system is convenient to regulation and display, reliable,intelligent by using high stable and high precision MPU.






Specification

Applications:

  • C-band 44/80CH DWDM

  • Other optical systems

Product features:

  • Low-noise high flatness design

  • Adjustable output power

  • High precision ATC keep system stable operation

  • Precision AGC / APC circuit keeps the output Power stability

  • Strict accordance with Bellcore GR-1312-CORE requirement for design

Performance index:


 
 

Item

Description

Value

Unit

Conditions / Notes



Optical Specifications (Forward Path)


1

Operating Wavelength

1550 ± 10

nm



2

PON Pass Wavelength

1310,1490

nm

(1260~1360), (1480~1500)


3

Isolation

Pass band

35

dB

λ = 1550nm


Reflect band

20

dB

λ = 1310nm, λ   = 1490nm


4

Insert loss

Pass band

≤0.8

dB

λ = 1550nm


Reflect band

≤0.6

dB

λ = 1310nm, λ   = 1490nm


5

Optical Return Loss

≥45

dB



6

Optical Power Input Range

-18 ~ +2

dBm

Recommended Range: -9 ~ 0


AGC Range

-9 ~ 0

dBm




RF Specifications (Forward Path)


7

Bandwidth

47 ~ 1002

MHz



8

Flatness

±0.75

dB

At 25 ℃


9

RF impedance

75

Ohm



10

Output level

>80

>76

>70

dBuV

@AGC(-9 ~ 0), RFsource = 80 dBuV

@ -11dBm, RFsource = 80 dBuV

@ -15dBm, RFsource = 80 dBuV


11

Output return Loss

16

dB

Typical



Analog TV Parameters



Test channel

59

CH(PAL-D)

535.25MHz


12

OMI

3.8

%



13

CNR

=59

>57

>51.7

dB

@-9dBm,RFsource >90dBuV

@-11dBm,RFsource >90dBuV

@-17dBm,RFsource >90dBuV


14

CTB

≤-65

dB



15

CSO

≤-65

dB




Digital TV Parameters





16

OMI

4.3

%



17

MER

>39.2

>36.2

>31

dB

@-9dBm,RFsource = 80dBuV

@-11dBm,RFsource = 80dBuV

@-17dBm,RFsource = 80dBuV


18

BER

<1.0E-9

dB

@-17dBm,RFsource = 80dBuV



Environmental Parameters


19

Operating Temperature

-25 ~ 85



20

Storage Temperature

-40 ~ 85



21

Storage Humidity

≤95

%

Non- condensation


22

Power consume

<1

W




User Interface


23

Optical Connector Type

FC/APC or SC/APC


Optional


24

Power interface

DC5V/0.5A


External adapter


25

RF Output Connector

1 or 2


Optional


26

Optical Power Indicator

Three color lights


Red:    > 0 dBm

Green:  0 ~ -11 dBm

Orange:  <-11 dBm


27

Size

110×90×25

mm



28

Weight

0.10

kg