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Mini Size Dual Window Coupler (DWC)

     Dual window coupler (DWC) is built by asymmetric coupling technique. The operating bandwidth of this coupler is expanding to ±40nm. The DWC coupler has the same coupling ratio on both 1310nm and 1550nm communication windows.
    The mini size DWC is designed for the compact optical modules and communication systems.

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Mini Size Dual Window Coupler


Specifications:

Parameter


Operating   wavelength (nm)

1310   and 1550

Operating   bandwidth (nm)

±40

Package   size (Ф×L) (mm)

Ф3.0/Ф2.4×30

Ф2.4×25

Grade

P

A

P

A

Typical   excess loss (dB)

0.1

0.15

0.15

0.25

Insertion   loss (dB)

50/50

≤3.60

≤3.80

≤3.70

≤3.90

40/60

≤4.70/2.70

≤4.90/2.90

≤4.70/2.80

≤5.00/3.00

30/70

≤6.00/1.90

≤6.30/2.10

≤6.10/2.10

≤6.40/2.20

20/80

≤7.90/1.30

≤8.40/1.40

≤8.00/1.40

≤8.50/1.50

10/90

9.20~ 11.30/0.75

8.75~ 12.00/0.80

9.25~ 11.50/0.80

8.80~ 12.00/≤0.85

5/95

12.05~ 14.35/0.40

11.55~ 14.85/0.50

12.10~ 14.40/0.50

11.60~ 14.90/0.55

3/97

14.10~ 16.70/0.35

13.55~ 17.25/0.45

14.15~ 16.75/0.40

13.60~ 17.30/0.45

2/98

15.75~ 18.65/0.30

15.10~ 19.25/0.40

15.80~ 18.70/0.35

15.15~ 19.30/0.40

1/99

18.60~ 21.80/0.25

17.90~ 22.50/0.35

18.65~ 21.85/0.30

17.95~ 22.55/0.35

PDL   (dB)

≤0.15

≤0.2

≤0.15

≤0.2

Directivity   (dB)

≥55

Operating   temperature ()

-40~+85

Configuration

1×2   or 2×2

Fiber   lead length

1   meter, others on request

*The above specification is without connector

**Other specifications can be made on customer request.