Applications

Features

Low excess loss 
Various coupling ratio 
Compact size

Long-haul telecommunications 
CATV systems & Fiber sensors 
Local area network

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 FBT coupler

1x2 or 2x2 Coupler

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 ±20（Standard band type） 
1310 /1550 ±40（wideband type）

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

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

Package Dimensions:

Package A:
3mm x 54mm stainless steel tube

Package B:
3mm x 60mm stainless steel tube        

Package C:
90mm x 20mm x 9.9mm ABS case (Black Color）

Pigtail Style:

Package A:

250um bare fiber

Package B:

250um bare fiber or 900um loose tube

Package C:

3mm cable or 900um loose tube