Project Description
2μm High Power Polarization Insensitive Optical Isolator
The 2000nm 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, Fiber lasers, transmitters and other fiber optic 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.DK Photonics can respond to custom requirements with short lead times.
| Features | Applications |
| · Low Insertion Loss
· Low Polarization Dependent Loss · High Return Loss · High Isolation · High stability & Reliability |
· Testing Instrumentations
· Transmitters · Fiber Laser · EDFA · Raman Amplifiers |
Performance Specifications
| Parameter | Unit | Values | |
| Stage | – | Single | Dual |
| Center Wavelength | nm | 1940, 2000,2050,2100 | |
| Min. Isolation at 23℃ , λc ± 30 nm | dB | 20 | 35 |
| Max. Insertion Loss at 23℃, λc ± 20 nm | dB | 1.2 | 1.5 |
| Max. Polarization Dependent Loss at 23℃ | dB | 0.15 | 0.20 |
| Min. Return Loss | dB | 50/50 | |
| Max. Optical Power(CW) | W | 0.3, 1, 2, 5, 10, 20 | |
| Max. Tensile Load | N | 5 | |
| Fiber Type | – | SMF-28e or Nufern SM-1950 fiber | |
| Operating Temperature | ℃ | -5~+70 | |
| Storage Temperature | ℃ | -40~+85 | |
| Package Dimension | mm | Ф5.5× L35(<5W), 60x12x10(>5W) | |
*Above specifications are for device without connector.
*For devices with connectors, IL will be 0.3dB higher, RL will be 5dB lower. Power transmit through the connector less than 2W.
*For >5W high power applications, we will use heat sink package, contact DK Photonics for details.
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
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 | |
| Type | Wavelength | Power Handling | Fiber type | Pigtails Diameter | Fiber Length | Connector |
| IS: single stage
IU: Dual stage |
1940:1940nm
2000:2000nm 2050:2050nm XX: Others |
L:<0.3W
1:1W 3:3W 5:5W |
S28: SMF-28e
S19: SM1950 |
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 LP: LC/PC LA: LC/APC XX: Others |
Part Number Example #1: ISO-IS-1940-L-28-90-10-FA
Description: 1940nm single stage fiber optic isolator, 0.3W power handling, SMF-28e fiber, with 0.9mm OD loose tube,1.0m length fiber pigtails, FC/APC connectors at all ports.
Part Number Example: ISO-IU-2000-1-S19-90-10-00
Description: 2000nm dual stage fiber optic isolator, 1W power handling, SM1950 fiber, with 0.9mm OD loose tube,1.0m length fiber pigtails, no connectors at all ports.
Ordering Information For Custom Parts
If you need to customize other specifications, please provide detailed description for your requirement.
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