Project Description

TGG Based 850nm PM Optical Circulator

The TGG Based 850 Optical Circulator is a high performance light-wave component that routes incoming signals from Port 1 to Port 2, and incoming Port 2 signals to Port 3. They’re characterized with low insertion loss, high isolation, high power handling, high return loss, low PDL, low PMD, excellent environmental stability and reliability. They are ideal for fiber laser and instrumentation applications.

If you do not see a standard circulator that meets your needs, we welcome the opportunity to review your desired specification and quote a custom circulator. Requests for custom fiber pigtails, different wavelengths and handling power of operation or other specific needs will be readily addressed.

Features Applications
·       Low Insertion Loss

·       High Power Handling

·       High Isolation

·       PM and Non-PM are available

·       Fiber can be customized

·       High Reliability

·       Excellent Temperature Stability

·       Fiber optic Amplifiers

·       Pump Laser Source

·       Fiber optic Sensor

·       Test and Measurement

·       Instrumentation

Performance Specifications

Parameters Unit Values
Operation Wavelength nm 780, 808, 850
Operating Wavelength Range nm ±15
Typ. Peak Isolation dB 26
Min. Isolation, λc, 23 ℃(dB) dB 22
Typ. Insertion Loss, 23 ℃ (dB) dB 1.0
Max. Insertion Loss, 23 (dB) dB 1.5
Max. PDL(for SM fiber) dB 0.15
Min. Extinction Ratio(for PM fiber) dB 18(Type B), 20(Type F)
Min. Cross Talk (dB) dB 45 (Typ. 50)
Min. Return Loss (dB) dB 45
Power Handling(total pass) W 0.5,3,5,10
Max. Peak Power for ns Pulse kW 10, 20 (for typical pulse application)
Max. Tensile Load(N) N 5
Fiber Type Nufern 780-HP, PM780-HP, or other
Operating Temperature °C 0 ~ +60
Storage Temperature °C -10 ~ +75
  1. Above specification are for device without connector, and may change without notice.
  2. IL is 0.3 dB higher and RL is 5 dB lower, ER is 2dB lower (PM type) for each connector added.
  3. The pass optical power is 2 W only for connector added, higher power requires splicing fibers.
  4. Type B: Both axis working, Type F: Fast axis blocked, the default is Type B if without request (Only for PM type)
  5. If there is pulse application, please be sure to inform us of pulse energy and peak power.

Package Dimension

*Due to ongoing design improvements, the package size is subject to change. Please contact DK Photonics for confirmation.

Order information  P/N: PMOC-B/F-①-②-③-④-⑤-⑥-⑦(B: Both axis working, F:Fast axis blocked)

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. For high power applications, we recommend direct splicing without connectors.

Port Operating Wavelength Power Handling Fiber Type Fiber Diameter Fiber Length Connector
3:3-port 85:850nm

78:780nm

808:808nm

XX: Other

L:<0.5W 1:1W 3:3W 5:5W 10:10W XX/XX/XX/XX(core/clad/core NA/clad NA) 25:250μm bare fiber

09:900μm 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: PMOC-F-3-85-L-PM780-90-10-FA

Description: 850nm 3-port Polarization Maintaining Optical Circulator, fast axis working, 0.5W power handling, Nufern PM780 fiber, with 0.9mm OD loose tube, 1.0m length fiber pigtails, FC/APC connectors.

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