Products> Fused Optical Fiber Components>Single Mode Coupler/WDM

Wide Band Coupler (WBC)

Lightcomm uses unique bandwidth expanding techniques (asymmetric techniques) to build the wide band coupler (WBC). The WBC has an operating bandwidth of ± 40nm or EDFA C band or L band, and it features low excess loss and low wavelength depend loss (WDL).


Key Features

§  Low excess loss

§  Low PDL

§ High stability and reliability


Applications

§  CATV

§  LAN

§  Optical fiber sensors

§  Testing instruments

  • Details
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Wide Band Coupler (WBC).pdf


Specifications

Grade

Parameter

P

A

P

A

Operating wavelength (nm)

1310   ,1550 or C+L Band

C   Band or L Band

Operating bandwidth (nm)

± 40

1528 ~1565 or 1570 ~1605

Typical excess loss (dB)

0.07

0.10

0.07

0.10

Insertion loss (dB)

50/50

≤3.4

≤3.6

≤3.35

≤3.5

45/55

≤4.1/3.1

≤4.3/3.3

≤4.0/3.0

≤4.2/3.2

40/60

≤4.4/2.6

≤4.7/2.8

≤4.4/2.55

≤4.6/2.7

35/65

≤5.2/2.3

≤5.5/2.5

≤5.1/2.2

≤5.3/2.4

33/67

≤5.4/2.2

≤5.7/2.3

≤5.3/2.1

≤5.5/2.25

30/70

≤5.7/1.9

≤6.0/2.0

≤5.7/1.85

≤5.9/1.95

25/75

≤6.6/1.7

≤7.0/1.8

≤6.5/1.65

≤6.8/1.75

20/80

≤7.6/1.25

≤8.0/1.3

≤7.55/1.25

≤7.8/1.3

15/85

≤9.2/1.0

≤9.6/1.2

≤9.0/1.0

≤9.3/1.1

10/90

9.55~10.65/≤0.65

9.3~10.9/≤0.8

9.55~10.60/≤0.65

9.35~10.85/≤0.8

5/95

12.40~13.80/≤0.4

12.10~14.10/≤0.5

12.45~13.75/≤0.4

12.15~14.05/≤0.45

3/97

14.50~16.15/≤0.3

14.15~16.50/≤0.4

14.55~16.10 /≤0.3

14.20~16.45/≤0.35

2/98

16.10~18.05/≤0.25

15.70~18.45/≤0.35

16.2~17.95/≤0.25

15.80~18.35/≤0.3

1/99

19.05~21.15/≤0.2

18.55~21.65/≤0.3

19.1~21.1 /≤0.2

18.65~21.55/≤0.3

PDL (dB)

≤0.10

≤0.15

≤0.10

≤0.15

Directivity   (dB)

≥55

Operating temperature (℃)

-40 ~ +85

*The above specification is without connector.

*Other specifications can be made on customer request.