Fiber, Parts & Tools

Fiber Circulator

Fiber Circulator

Keywords: Fiber circulator

Fiber Optical Circulators Anoptical circulatoris a specialfiber-opticcomponent that can be used to separate optical signals that travel in opposite directions in anoptical fiber, analogous to the operation of an electroniccirculator. An optical circul

An optical circulator is a special fiber-optic component that can be used to separate optical signals that travel in opposite directions in an optical fiber, analogous to the operation of an electronic circulator. An optical circulator is a three-port device designed such that light entering any port exits from the next. This means that if light enters port 1 it is emitted from port 2, but if some of the emitted light is reflected back to the circulator, it does not come out of port 1, but instead exits from port 3. Circulators can be used to achieve bi-directional transmission over a single fiber. Because of its high isolation of the input and reflected optical powers and its low insertion loss, optical circulators are widely used in advanced communication systems and fiber-optic sensor applications.

Optical circulators are non-reciprocal optics, which means that changes in the properties of light passing through the device are not reversed when the light passes through in the opposite direction. This can only happen when the symmetry of the system is broken, for example by an external magnetic field.

STOZ Series Polarization Insensitive Optical Fiber Circulator

STOZ-FCIRSTOZ-FCIRSTOZ-FCIRSTOZ-HPCIR (High Power)
# of ports3333
Config1x21x21x21x2
Center Wavelength (λc)nm850 or 98010641310 or 15501550
Operating Wavelength Rangenm±10±5±20±20
Typ. Isolation at 23℃dB-28--
Min. Isolation at 23℃dB20234540
Typ. Insertion Loss at 23℃dB1.31.50.70.9
Max. Insertion Loss at 23℃dB-20.81.2
Max. Insertion Loss at -5~70℃dB1.8---
Min. DirectivitydB45--
Min. Return LossdB50505550
Min Extinction RatiodB----
Min Cross TalkdB45-5050
Max. PDLdB0.20.20.10.2
Min. PMD--0.10.1
Max. Optical  Power (CW)W0.30.30.51, 3, 5, 10, or specify
Max. Tensile LoadN5555
Fiber TypeHI1060 or see order infoHI1060SMF-28eSMF-28e
Operating Temperature-5 to +70-5 to +70-5 to +70-5 to +70
Storage Temperature-40 to +85-40 to +85-40 to +85-40 to +85
Package dimensionsmmL62.6 x W28 x H27-Dia5.5 x 63mm-

STOZ Series Polarization Maintaining Optical Circulator

STOZ-PMCIRSTOZ-PMCIRSTOZ-PMCIRSTOZ-PMCIRSTOZ-PMCIRSTOZ-PMCIR
Number of ports333444
Config1x21x21x22x22x22x2
TypeABAB
Center Wavelength (λc)nm10641310 or 15501310 or 155010641310 or 15501310 or 1550
Operating Wavelength Rangenm±5±30±20±5±30±20
Typ. Isolation at 23℃dB304630355030
Min. Isolation at 23℃dB254020284020
Typ. Isolation at -5~50℃dB---25--
Min. Isolation at -5~50℃dB---20--
Peak IsolationdB-5240-5540
Typ. Insertion Loss at 23℃dB1.80.70.62.10.80.7
Max. Insertion Loss at 23℃dB2.10.90.82.31.11.0
Typ. Insertion Loss at -5~50℃dB---2.6--
Max. Insertion Loss at -5~50℃dB---2.8--
Min. Return LossdB505555505555
Min Extinction RatiodB202220202020
Min Cross TalkdB505050505050
Max. Optical  Power (CW)mW300500500300500500
Max. Tensile LoadN555555
Fiber TypePM 980 PandaPM PandaPM PandaPM 980 PandaPM PandaPM Panda
Operating Temperature-5 to +50-5 to +70-5 to +70-5 to +50-5 to +70-5 to +70
Storage Temperature-40 to +85-40 to +85-40 to +85-40 to +85-40 to +85-40 to +85
Dimension (mm)D5.5x55D5.5x55D5.5x55D5.5x55D5.5x55D5.5x55

STLC Series Polarization Insensitive Optical Fiber Circulator

The polarization insensitive optical circulator is a non-reciprocal devices that routes incoming signals from any port to the next. It is characterized with low insertion loss, high isolation, low PDL, low PMD and excellent environmental stability and reliability. It is widely used in fiber amplifier systems, optical fiber sensors and bi-direction communication systems.

Key Features:

  • Low insertion loss

  • Compact package

  • Stable and reliable performance

  • Customized configurations available

Applications:

  • Fiber amplifier

  • Fiber laser

Type3 Ports PICIR4 Ports PICIR
Operating   Wavelength (nm)1064±51310   or 1550±20
Insertion   Loss (1→2, 2→3, 3→4)(dB)≤2.0≤0.8≤1.0
Polarization   Dependent Loss (dB)≤0.2≤0.1≤0.2
Polarization   Mode Dispersion (ps)≤0.1≤0.1≤0.1
Isolation(2→1,   3→2, 4→3) (dB)≥23≥45≥38
Crosstalk (dB)≥45≥50
Return   loss(dB)≥50
Power   Handling (mW)≤300≤500
Fiber TypeHi1060SMF-28e XB
Operating   Temperature(℃)-5   ~ +50-5   ~ +70
Storage   Temperature(℃)-40   ~ +85
Dimensions   (mm)L34xW8.4xH8.4Ф5.5×L50Ф5.5×L65
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