Spec. No. : B-02F0102C
Date of Issue : 12/14/2005
General specification for
PM Tap Couplers
(PTAP-01xx-y-B, PTAP-01xx-y-T)
1. General
This specification covers PM tap Couplers to be operated in the 1550 nm region.
2. Part number definition
PTAP-01xx-y-(B or T):
xx: tap ratio,
y: 1 (1x2), 2 (2x2)
B: 250µm UV fiber for pigtail
T: 250µm UV fiber with 0.9mm loose tube
3. Specification
3-1 Fiber Specifications
Fiber type:
Fujikura PANDA Fiber for 1550nm
Fiber major diameter:
125 +/-1 µm
Mode field diameter:
Attenuation maximum:
Beat length:
Polarization crosstalk:
Coating diameter:
Coating material:
10.5 +/- 1.0µm @1.55µm
0.5 dB/km @1.55µm
3.0 - 5.0 mm @1.55µm
Max -30dB / 100m
245 +/- 15µm
Double Layers of UV cured Acrylate
3-2 Coupler Configuration
Number of Port:
B type: 1 x 2 (Fig.1) , 2x2 (Fig.2)
T type: 1 x 2 (Fig.3) , 2x2 (Fig.4)
Packaging
Coupler Main Body
Length:
SUS
75+/- 1mm
(B type 1x2 UV fiber type, T type 1x2, 2x2 loose tube type)
70 +/- 1mm
(B type 2x2 UV fiber type)
3.0 +/- 0.2mm
Diameter:
Length of Each Port Fiber Lead: >1 m (B type: as UV pigtail fiber portion)
>1 m (T type: as loose tube portion)
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Fujikura Ltd.
FUJIKURA [ FUJIKURA LTD. ]
