Ultra-Low PDL Fused Tap Coupler

(1310, S, C, L band)

LPTC Series

Insertion Loss Tables

R3.20070802

Oplink Communications, Inc.

Insertion Loss (IL) I : C or L band coupler

Insertion Loss (IL) II : 1310nm, S band coupler

A Grade

P Grade

1

2

(dB)

99/1

≤0.18

18.2-21.0

≤0.03

≤0.03

≤0.23

17.4-21.5

≤0.05

≤0.05

98/2

≤0.25

16.0-18.6

≤0.03

≤0.03

≤0.30

15.2-19.8

≤0.05

≤0.05

97/3

≤0.30

14.4-16.4

≤0.03

≤0.03

≤0.34

13.7-17.1

≤0.05

≤0.05

95/5

≤0.35

12.2-14.0

≤0.03

≤0.03

≤0.40

11.8-14.7

≤0.05

≤0.05

90/10

≤0.60

9.40-11.0

≤0.03

≤0.03

≤0.65

9.00-11.3

≤0.05

≤0.05

85/15

≤0.90

7.70-8.85

≤0.03

≤0.03

≤0.85

7.4-9.1

≤0.05

≤0.05

80/20

≤1.15

6.30-7.80

≤0.03

≤0.03

≤1.15

6.0-8.1

≤0.05

≤0.05

75/25

≤1.50

5.45-6.70

≤0.03

≤0.03

≤1.44

5.5-6.8

≤0.05

≤0.05

70/30

≤1.75

4.60-5.75

≤0.03

≤0.03

≤1.82

4.7-5.9

≤0.05

≤0.05

65/35

≤2.05

4.10-5.05

≤0.03

≤0.03

≤2.02

4.2-5.0

≤0.05

≤0.05

60/40

≤2.50

3.85-4.40

≤0.03

≤0.03

≤2.60

3.7-4.6

≤0.05

≤0.05

55/45

≤2.85

3.15-3.80

≤0.03

≤0.03

≤2.81

3.1-4.0

≤0.05

≤0.05

50/50

2.70−3.40

≤0.03

2.60−3.50

≤0.05

1. Insertion loss over operating wavelength range at ~23°C (excluding PDL and TDL), For S-band product, add 0.1dB due to water absorption peak of fiber.

2. Insertion loss change over the all input polarization states.

Coupling Ratio

Signal

Tap

Signal

Tap

(dB)

PDL

IL (dB)

Signal

Tap

Signal

Tap

A Grade

P Grade

1

(dB)

PDL

2

(dB)

Signal

Tap

Signal

Tap

99/1

≤0.18

19.0-21.0

≤0.03

≤0.03

≤0.20

17.7-21.5

≤0.05

≤0.05

98/2

≤0.25

16.4-18.4

≤0.03

≤0.03

≤0.30

16.0-19.4

≤0.05

≤0.05

97/3

≤0.30

14.6-16.2

≤0.03

≤0.03

≤0.35

14.0-16.8

≤0.05

≤0.05

95/5

≤0.35

12.4-13.8

≤0.03

≤0.03

≤0.40

12.0-14.4

≤0.05

≤0.05

90/10

≤0.60

9.60-10.8

≤0.03

≤0.03

≤0.65

9.20-11.2

≤0.05

≤0.05

85/15

≤0.85

7.80-8.80

≤0.03

≤0.03

≤0.90

7.5-9.0

≤0.05

≤0.05

80/20

≤1.15

6.60-7.60

≤0.03

≤0.03

≤1.15

6.4-8.0

≤0.05

≤0.05

75/25

≤1.35

5.75-6.50

≤0.03

≤0.03

≤1.44

5.6-6.7

≤0.05

≤0.05

70/30

≤1.75

5.00-5.50

≤0.03

≤0.03

≤1.82

4.9-5.8

≤0.05

≤0.05

65/35

≤2.10

4.40-4.90

≤0.03

≤0.03

≤2.15

4.3-5.0

≤0.05

≤0.05

60/40

≤2.50

3.95-4.30

≤0.03

≤0.03

≤2.60

3.7-4.6

≤0.05

≤0.05

55/45

≤2.85

3.35-3.80

≤0.03

≤0.03

≤2.90

3.1-4.0

≤0.05

≤0.05

50/50

2.80−3.30

≤0.03

2.70−3.30

≤0.05

1. Insertion loss over operating wavelength range at ~23°C (excluding PDL and TDL).

2. Insertion loss change over the all input polarization states.

Coupling Ratio

IL

Signal

Tap

Signal

Tap