Fiber Circulator

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-FCIR STOZ-FCIR STOZ-FCIR STOZ-HPCIR (High Power)
# of ports 3 3 3 3
Config 1x2 1x2 1x2 1x2
Center Wavelength (λc) nm 850 or 980 1064 1310 or 1550 1550
Operating Wavelength Range nm ±10 ±5 ±20 ±20
Typ. Isolation at 23℃ dB - 28 - -
Min. Isolation at 23℃ dB 20 23 45 40
Typ. Insertion Loss at 23℃ dB 1.3 1.5 0.7 0.9
Max. Insertion Loss at 23℃ dB - 2 0.8 1.2
Max. Insertion Loss at -5~70℃ dB 1.8 - - -
Min. Directivity dB 45 - -
Min. Return Loss dB 50 50 55 50
Min Extinction Ratio dB - - - -
Min Cross Talk dB 45 - 50 50
Max. PDL dB 0.2 0.2 0.1 0.2
Min. PMD - - 0.1 0.1
Max. Optical Power (CW) W 0.3 0.3 0.5 1, 3, 5, 10, or specify
Max. Tensile Load N 5 5 5 5
Fiber Type HI1060 or see order info HI1060 SMF-28e SMF-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 dimensions mm L62.6 x W28 x H27 - Dia5.5 x 63mm -

STOZ Series Polarization Maintaining Optical Circulator

STOZ-PMCIR STOZ-PMCIR STOZ-PMCIR STOZ-PMCIR STOZ-PMCIR STOZ-PMCIR
Number of ports 3 3 3 4 4 4
Config 1x2 1x2 1x2 2x2 2x2 2x2
Type A B A B
Center Wavelength (λc) nm 1064 1310 or 1550 1310 or 1550 1064 1310 or 1550 1310 or 1550
Operating Wavelength Range nm ±5 ±30 ±20 ±5 ±30 ±20
Typ. Isolation at 23℃ dB 30 46 30 35 50 30
Min. Isolation at 23℃ dB 25 40 20 28 40 20
Typ. Isolation at -5~50℃ dB - - - 25 - -
Min. Isolation at -5~50℃ dB - - - 20 - -
Peak Isolation dB - 52 40 - 55 40
Typ. Insertion Loss at 23℃ dB 1.8 0.7 0.6 2.1 0.8 0.7
Max. Insertion Loss at 23℃ dB 2.1 0.9 0.8 2.3 1.1 1.0
Typ. Insertion Loss at -5~50℃ dB - - - 2.6 - -
Max. Insertion Loss at -5~50℃ dB - - - 2.8 - -
Min. Return Loss dB 50 55 55 50 55 55
Min Extinction Ratio dB 20 22 20 20 20 20
Min Cross Talk dB 50 50 50 50 50 50
Max. Optical Power (CW) mW 300 500 500 300 500 500
Max. Tensile Load N 5 5 5 5 5 5
Fiber Type PM 980 Panda PM Panda PM Panda PM 980 Panda PM Panda PM 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) D5.5x55 D5.5x55 D5.5x55 D5.5x55 D5.5x55 D5.5x55

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
Type 3 Ports PICIR 4 Ports PICIR
Operating Wavelength (nm) 1064±5 1310 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 Type Hi1060 SMF-28e XB
Operating Temperature(℃) -5 ~ +50 -5 ~ +70
Storage Temperature(℃) -40 ~ +85
Dimensions (mm) L34xW8.4xH8.4 Ф5.5×L50 Ф5.5×L65