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Singlemode Dual Window FBT Coupler

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Applications

Features

ow excess loss

Various coupling ratio

Compact size

Long-haul telecommunications

CATV systems & Fiber sensors

Local area network

Performance Specifications

Coupling Ratio(%)

1-50

Directivity (dB)

>55 dB

Operating Temperature

-20 ° C - 85 ° C

Storage Temperature

-40 ° C - 85 ° C

Fiber Type

Corning Singlemode SMF-28 , DS Fiber, or Flexcore

Fiber Pigtail Length (m)

1meter

Port Configuration

1x2 or 2x2

Package Dimension

Package A, B, C

Fiber color

Input white;output1(Big split ratio) black,split output2(small split ratio white)

 

Single mode Dual Window Wideband Couplers

Grade

P

A

Excess Loss (Typical )(dB)

0.10

0.15

Maximum Insertion loss (dB)

3.6

3.8

Uniformity (Max.) (dB)

0.7

1.0

Polarization Sensitivity (dB)

0.10

0.15

Operating Wavelength (nm)

1310 /1550 ±20Standard band type

1310 /1550 ±40wideband type

Coupling Ratio/Insertion Loss Conversion Chart

Coupling Ratio

Insertion Loss

 

Premium

A Grade

40/60

4.7/2.7

5.0/2.9

30/70

6.0/1.9

6.4/2.1

20/80

7.9/1.2

8.4/1.4

10/90

11.3/0.5

12.7/0.8

5/95

15.2/0.4

18.5/0.5

1/99

22.5/0.3

23.0/0.4

 

Ordering Information

Type

Grade

Wave-

length

Coupling Ratio (dB)

Port

Package

Pigtail Style

Fiber Type

In/Out Connector

S
W

P
A

31=1310

55=1550

35=1310/

1550nm
345=1310/1490/1550nm

 

50=50/50
30=30/70
10=10/90
05=5/95
01=1/99

02=2/98

03=3/97

0102=1x2
0202=2x2

A=Package A
B=Package B
C=Package C

1=Bare Fiber
2=900µm Jacket
3=3mm Cable

0=SMF-28e(G652D)

1=SMF-28e(G657A)

 

 

0=None
1=FC/APC
2=FC/PC
3=SC/APC
4=SC/PC
5=ST
6=LC

* Type:

S -- Singlemode Standard Coupler
W -- Singlemode Wideband Coupler

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