Shenzhen Jiangfan Communication Equipment Co., Ltd.
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Fiber Optical Isolator Mini Polarization Independent In Line Isolator 1310nm
The polarization-independent in-line isolator including 1310, 1450, 1480, 1550, 1580, 1610, 1650nm is a passive optical device that only allows one-way light to pass through. Its working principle is based on the non-reciprocity of Faraday rotation. The light reflected by the optical fiber echo can be well isolated by the optical isolator. Optical isolators mainly use the Faraday effect of magneto-optical crystals. It is a passive device that allows light to pass in one direction but prevents it from passing in the opposite direction. Its function is to limit the direction of light so that light can only be transmitted in one direction. The light reflected by the optical fiber echo can be very good by the optical isolator. Isolation improves the efficiency of light wave transmission. This product uses a mini-size package and is used in some highly integrated optical modules, which very well fills the gap in this regard.
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| Index name | unit | standard value | Limit value | |
| Level type | Single-stage | Two-stage | ||
| Center wavelength | nm | 1310 1450 1480 1550 1580 1610 or customized | ||
| Bandwidth range | dB | ±15 | ±20 | |
| Insertion loss (Type) | dB | 0.18 | 0.3 | Max. |
| Insertion loss (@23℃) | dB | 0.25 | 0.4 | Max. |
| Peak isolation (Type) | dB | 40 | 60 | |
| Isolation (@23℃) | dB | 38 | 55 | Min. |
| Clear aperture | mm | 0.9, 0.8, 0.7, 0.6, 0.5, 0.4 or customized | Max. | |
| Withstand power | mW | 500 | Max. | |
| Operating temperature | ℃ | -5 to +50 | ||
| stored temperature | ℃ | -20 to +85 | ||
Ordering Information
FSI-AAAA-B-C-DD-EE
| Wavelength AAAA | Category B | Clear aperture CA | Output divergence angle D | Package size E |
| 1310-1310nm | S-Single Stage | 04 -0.4mm | 6 - 6±1° | 1-2.5x1.1mm |
| 1550 1550nm | D-Dual Stage | 05 - 0.5mm | 7 - 7±1° | 2-2.5x1.4mm |
| ssss -Specify | 06-0,5mm | 8 - 8±1° | 3-3.0x1.4mm | |
| 07-0.7mm | 0 - no angle | 4-2.5x3.0mm | ||
| 08 -0.8mm | SS - Specify | 5-3.0x3.0mm | ||
| 09-0.9mm | 6- 3.0x2.5mm | |||
| SS -Specify | SS -Specify |