980/1550 nm WDM/Tap Coupler/
Isolator Hybrid Combination
WTIH1598 Series
Features
980/1550 NM WDM/TAP COUPLER/ ISOLATOR
HYBRID COMBINATION
Oplink’s WTIH is a combination of a wavelength division
multiplexer, tap coupler and an isolator in a compact package.
This product has an extremely low insertion loss, and a very
stable tap-coupling ratio. The WTIH is ideal for fiber optic
amplifier applications.
• Wide Operating
Wavelength Range
• Compact Size
• High Isolation
• Ultra Low PDL & PMD
• Highly Stable & Reliable
• Epoxy-Free Optical Path
Applications
• Fiberoptic Amplifiers
• CATV Fiberoptic Links
• WDM Systems
• Fiberoptic Instruments
• Transmitters and Fiber
Lasers
• Laboratory R&D
Performance Specifications
WTIH1598 Series
Single Stage
Dual Stage
Unit
~
C band: 1528
Signal Operating Wavelength
1564
nm
nm
nm
dB
~
L band: 1570 1605
Pump Channel Wavelength Range
Isolation (Min.)
965 ~ 995
21
36
(over signal wavelength range
0 ~ 70°C, all SOP)
Isolation(Min.)( 2 to 4 @ ꢀ signal)
Isolation(Min.)( 1 to 2 @ ꢀ pump)
12
dB
dB
dB
dB
dB
dB
dB
dB
30
0.6
Insertion Loss
Pump Channel
(over wavelength range and
0 to +70°C,all SOP)
Signal Channe1)
1.4
1%
2%
5%
10%
1.5
~
~
21.0
18.0
14.0
10.8
19.2
16.2
Nominal Tap Ratio %
12.2 ~
9.6
~
WDL(Max.)
0.5
50
dB
dB
dB
ps
Return Loss(Min.)
PDL(Max.)
0.1
Oplink Fiber Optic
Product Lines
PMD(Max.)
0.25
0.05
Directivity(Min.)
Maximum Power Handling
Operation Temperature
Storage Temperature
Package Dimension*
55
dB
mW
°C
500
Amplifier Components
Amplifier Modules
DWDMs
0 to +70
-40 to 85
°C
P2: (ø)5.5 x (L)40
mm
Values are referenced without connector loss
* The mechanical tolerance should be +/-0.2 mm on all package dimensions unless otherwise custom specified.
1) add 0.3dB on signal channel for 10% tapping case.
Switching/Routing/
Monitoring/ Conditioning
Transmission
RGB Laser Modules
Oplink Communications, Inc.
