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2050nm In-line Faraday Rotator

The 2050nm In-line Faraday Rotator is characterized with low IL, high return loss, high extinction ratio and excellent environmental stability and reliability. It is with fiber in and fiber out. They are ideal for polarization maintaining fiber amplifiers, fiber lasers, and high-speed communication system and instrumentation applications.

Features

  • Low insertion loss
  • Excellent stability and reliability
  • High power handling

Applications

  • Fiber laser
  • Fiber amplifier
  • Communications

The In-line Faraday Rotator is characterized with low IL, high return loss, high extinction ratio and excellent environmental stability and reliability. It is with fiber in and fiber out. They are ideal for polarization maintaining fiber amplifiers, fiber lasers, and high-speed communication system and instrumentation applications.

Performance Specifications

Parameter Unit Values
Center Wavelength nm 2050
Operating Bandwidth nm ±30
Faraday Rotation Angle (Single Pass) degree 45 or 90
Rotation Angle Tolerance over Wavelength and Temperature degree ±2.0
Max. Insertion Loss 45 deg. dB 0.8

90 deg.

dB 1.0
Min. Extinction Ratio dB 20
Min. Return Loss dB ≥50/50
Max. Optical Power mW 300
Fiber Type Option 1: PM→PM PM1550/PM1950→PM1550/PM1950
Option 2: SM→PM SMF-28e/SM1950→PM1550/PM1950
Option 3: SM→SM SMF-28e/SM1950→SMF-28e/SM1950
Operation Temperature °C -5 ~ +70
Storage Temperature °C -40 ~ +85
Dimensions mm Ø5.5xL35
  1. Above specifications are for device without connector.
  2. For devices with connectors, IL will be 0.3dB higher, RL will be 5dB lower and ER will be 2dB lower. The default connector key is aligned to slow axis. Power transmits through the connector less than 2W.
  3. Higher power up to 20W is possible; please contact DK Photonics for details.
  4. Default fiber is SMF-28e/PM1550 for 2um.
  5. For Option 1: PM→PM, The default is: the axial direction of the stress zone of the input PM fiber is consistent with the output PM fiber.

In-line Faraday Rotator

Package Dimension

Order information 

P/N: ILFR-①-②-③-④-⑤-⑥

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.

Wavelength Angle Fiber Type Pigtails Diameter Fiber Length Connector
2050:2050nm

X X: Others

45:45°

90:90°

1: Option 1

2: Option 2

3: Option 3

25:250μm bare fiber

90:900μm Loose Fiber

XX: Others

05:0.5m

10:1.0m

15:1.5m

XX: Others

00: None

FP: FC/PC

FA: FC/APC

XX: Others

Part Number Example: ILFR-2050-45-1-90-10-FA

Description: 2050nm in line Faraday Rotator, faraday rotation angle: 45°, PM1950 fiber in and PM1950 fiber out, with 0.9mm OD loose tube, 1.0m length fiber pigtails, FC/APC connectors at all ports.

Ordering Information for Custom Parts

If you need to customize other specifications, please provide detailed description for your requirement.