Hybrid optical isolators
YM-6000 type (Built-in WDM filter, for backward
pumping)
 Optical signal amplification in optical transmission
lines is carried out by optical fiber amplifiers
(EDFA). The YM-6000 type, which is the combination
of an isolator and a WDM filter, is connected
to the amplifier to assist it by backward
pumping.
Features
 Designed for backward pumping of EDFA
High isolation
Low insertion loss
High reliability
Compact size,  5.5mm
Specifications
| Items |
Ports |
Conditions |
Part No. |
| YM-6060 |
| Signal insertion loss |
I O |
1.55 m, To |
0.8dB max.(0.6dB typ.) |
| Signal PDL |
0.1dB max.(0.02dB typ.) |
| Pump insertion loss |
PI |
1.48m, To |
0.6dB max.(0.4dB typ.) |
| Pump PDL |
0.1dB max.(0.02dB typ.) |
| Signal isolation |
OI |
1.55m, 25°C |
50dB min.(55dB typ.) |
| Return loss |
I，O |
1.55m, To |
55dB min.(60dB typ.) |
| Polarization mode dispersion |
IO |
1.55m, To |
0.1ps max.(0.01ps typ.) |
| Input/output fiber |
I |
Diameter :  0.25mm |
Corning SMF-28 CPC6 [Length : 2m] |
| O |
| P |
[Available for L-band and C+L-band]
|
| Operating temp. range [To] |
0 ~ + 70°C |
| Storage temp. range [Ts] |
-40 ~ +85°C |
| Shapes and dimensions |
Diagram |
|
|
|
|
|
