Optical isolators are passive optical devices that allow light to be transmitted in only one direction. They are most often used to prevent any light from reflecting back down the fiber, as this light would enter the source and cause backscattering and feedback problems. Optical feedback degrades signal-to-noise ratio and consequently bit-error rate. Ideally an isolator would pass all light in one direction and block all light in the reverse direction.
There are two major classifications of optical isolators: In-line isolators (fiber optic isolators) and free space isolators. Inline fiber optical isolators are designed in pigtail fashion. That is to say that they come with built-in fiber optic cable and connectors so that they may be integrated directly into a fiber optic system. Free space isolators, by contrast, do not have an integral connection system. They must be directly mounted to the object that needs isolation.
LFO Inline isolator series also come with your choice of single or dual stage packaging. Various types of pig tailing and connector terminations are available to meet your requirements.
They include 1550nm / 1310nm dual and single-stage in-line isolators, unique refection-type mini-isolators and 2-in-1 mini-isolators, and pigtailed free-space isolators.
More Related Products in LFO:
Fiber Adapter
Fiber Connector
Fiber Optic Coupler
Fiber Patch Cord
Optical Filter
CWDM Module
Features:
- Ultra high isolation
- Minimum polarization dependent Loss(PDL)
- Polarization mode dispersion(PMD) free
- Optical path epoxy free
- Low insertion Loss
- Environmentally stable
Applications:
- Optical amplification
- Optical transmission
- CATV
- High-bit rate optical communications
- High speed analog optical systems
Specifications: (FOR Polarization independent isolator)
Others:
| ITEM | VALUES | VALUES | VALUES | VALUES |
|---|---|---|---|---|
| Operation Wavelength, nm | 1310nm or 1550nm | 1310nm or 1550nm | 1310nm or 1550nm | 1310nm or 1550nm |
| Stage | Single | Single | Dual | Dual |
| Grade | S | H | S | H |
| Minimum Isolation, dB | 30 | 29 | 45 | 43 |
| Typical Insertion Loss, dB | 0.4 | 0.5 | 0.5 | 0.7 |
| Maximum Insertion Loss, dB | 0.5 | 0.7 | 0.7 | 0.9 |
| Polarization dependent Loss, dB | ≤0.1 | ≤0.15 | ≤0.1 | ≤0.15 |
| Return Loss. dB (Input / output) | 60 / 55 | 55 / 50 | 60 / 55 | 55 / 50 |
| Polarization Mode dispersion, ps | ≤0.25 | ≤0.25 | ≤0.05 | ≤0.07 |
| Operating temperature, °C | 0 ~ 60°C | 0 ~ 60°C | 0 ~ 60°C | 0 ~ 60°C |
| Storage temperature, °C | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C |
| Maximum output power, mW | 300 | 300 | 300 | 300 |
| Package Size, mm | E-type Ø5.5 x 34mm for coated fiber (250um) Ø5.5 x 39mm for loose tube cable (900um) | Same Left | Same Left | Same Left |
Ordering information:
- Minimum Order: Negotiable
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