L band Polarization Insensitive Isolator utilizes Faraday Effect of Magneto optical crystal. It guides optical light in one direction and eliminates back reflection and back scattering in the reverse direction at any polarization sate. The unique manufacturing process and optical path epoxy-free design enhance the device's high-power handling capability. The devices are characterized with low insertion loss, high isolation, high return loss, excellent environmental stability and reliability and low cost. It has been widely used in EDFAs, Raman amplifiers, DWDM systems, Fiber lasers, transmitters and other fiber optic communication equipments to suppress back reflection and back scattering.
If you do not see a standard isolator that meets your needs, we welcome the opportunity to review your desired specification and quote a custom isolator. Requests for custom fiber pigtails, different wavelengths and handling power of operation or other specific needs will be readily addressed.
Performance Specifications
|
Parameter
|
Unit
|
Values
|
|
Stage
|
-
|
Single
|
Dual
|
|
Grade
|
-
|
P
|
A
|
P
|
A
|
|
Operating Wavelength
|
nm
|
L Band
|
|
Band Width
|
nm
|
±15
|
|
Typ. Peak Isolation at 23℃
|
dB
|
36
|
33
|
45
|
40
|
|
Min. Isolation at 23℃
|
dB
|
30
|
26
|
40
|
36
|
|
Typ. Insertion Loss at 23℃
|
dB
|
0.3
|
0.4
|
0.4
|
0.5
|
|
Max. Insertion loss at 23℃
|
dB
|
0.5
|
0.7
|
0.6
|
0.8
|
|
Return Loss (In/Out)
|
dB
|
>60/55
|
>55/50
|
>60/55
|
>55/50
|
|
PDL
|
dB
|
< 0.05
|
< 0.1
|
< 0.05
|
< 0.1
|
|
PMD
|
ps
|
0.2(0.05 available upon request)
|
|
Maximum Power Handling(CW)
|
W
|
0.3, 1, 3, 5
|
|
Max. Tensile Load
|
N
|
5
|
|
Fiber Type
|
-
|
SMF-28e fiber, or other
|
|
Operating Temperature
|
°C
|
-20~+70
|
|
Storage Temperature
|
°C
|
-40 ~+85
|
|
Dimensions
|
mm
|
Ф5.5× L35(<10W), 60x12x8(>10W)
|
- Above specifications are for device without connector.
- For devices with connectors, IL will be 0.3dB higher, RL will be 5dB lower. Power transmits through the connector less than 2W.
Package Dimension
*Due to ongoing design improvements, the package size is subject to change. For high power applications, we will use heat sink package, contact DK Photonics for details. Please contact DK Photonics for confirmation.
Order information
P/N: ISO-①-②-③-④-⑤-⑥-⑦-⑧
When you inquire, please provide the correct P/N number according to our ordering information and attach the appropriate description would be better. If need any connector, we do not recommend choosing a 250μm bare fiber pigtail.
|
①
|
②
|
③
|
④
|
⑤
|
⑥
|
⑦
|
⑧
|
|
Type
|
Wavelength
|
Grade
|
Power Handling
|
Fiber Type
|
Pigtails Diameter
|
Fiber Length
|
Connector
|
|
IS: Single stage
IU: Dual stage
|
LB: L band
XX: Others
|
P:P Grade
A: A Grade
|
L:<0.3W
1:1W
3:3W
5:5W
|
S28: SMF-28e
|
25:250μm bare fiber
90:900μm Loose Fiber
XX: Others
|
05:0.5m
10:1.0m
15:1.5m
XX: Others
|
00: None
FP: FC/PC
FA: FC/APC
LA: LC/APC
XX: Others
|
Part Number Example: ISO-IS-LB-P-L-S28-90-10-FA
Description: L Band single stage fiber optic isolator, P grade, 0.3W power handling, with 0.9mm OD loose tube,1.0m length fiber pigtails, FC/APC connectors at all ports.
Ordering Information for Custom Parts:
If you need to customize other specifications, please provide detailed description for your requirement.
DownloadDatasheet in PDF