grade/parameter

grade”premium”

operating wavelength(nm)

1310 or1550, others on request

bandwidth(nm)

±20

excess loss(db)

≤0.08(0.05 typ.)

coupling ratio (％)

50/50

40/60

30/70

20/80

typ.insertion loss(db)

3.05

4.1/2.3

5.3/1.6

7.1/1.0

max.insertion loss(db)

3.4

4.4/2.5

5.6/1.8

7.5/1.2

polarizationdependent loss(db)

≤0.10

≤0.10

≤0.15/0.10

≤0..15/0.10

thermal stability(db/％)

≤0.08

directivity

(db)

1x2

≥50, ≥60 on request

2x2

≥65

configuration

1x2 or 2x2

lead length

1 meter,others on request

lead type

0:250μm bare fiber

1:900μm loose tube

2:3mmloosecable

(or 2mm)

package dimensions (mm)

a:φ30.x 48

a:φ30.x 48

b:90 x 16 x 9

b:90x 16 x9

c:106 x 79 x 10

operating temperature(℃)

-40 to +85

-20 to +70

-20 to +70