• About Us
  • News & Events
Contact Us

Product

                   

Filter Coupler

Products

780~850nm SM Filter Coupler (1×2/2×2)

The 780~850nm SM Filter Coupler (1×2/2×2) using advanced micro-optic filter technology, offers very low excess loss, broad operating band and high stability and reliability. These components are extensively used with large-core double-clad fiber, multi-mode fiber, as these fibers cannot use the FBT process to make fused couplers.

Features

  • Low Insertion Loss
  • Broad operating band
  • Compact In-Line Package
  • High Stability and Reliability

Applications

  • Fiber Optic Instruments
  • Fiber Sensors
  • Coherent Detecting
  • Research

The Filter Coupler using advanced micro-optic filter technology, offers very low excess loss, broad operating band and high stability and reliability. These components are extensively used with large-core double-clad fiber, multi-mode fiber, as these fibers cannot use the FBT process to make fused couplers.

Performance Specifications

Parameter Unit Values
Configuration – 1×2 2×2
Center Wavelength nm 780, 850
Operating Wavelength Range nm ±50, ±100,
Tap Coupling Ratio % 1±0.5%, 5±2.0%, 10±2.0%, and 50%
Max. Insertion Loss dB IL related to CR
Max. Excess Lose dB 0.7 1.0
Uniformity (Only for 50/50) dB 0.5 0.7
Min. Return Loss dB 50
Max. Power Handling W 0.5, 1, 2, 5, 10, 20
Max. Tensile Load N 5
Fiber Type – 780-HP fiber
Operating Temperature ℃ -5 to +70
Storage Temperature ℃ -40 to +85
Package Dimensions mm Ø5.5 x L35
  1. above specifications are for device without connector. All parameters are tested at room temperature.
  2. For devices with connectors, IL will be 0.3dB higher, RL will be 5dB lower. Power transmits through the connector less than 2W.
  3. For >10W high power applications, we will use heat sink package, contact us for details.
  4. If there is pulse application, please be sure to inform us of pulse energy and peak power.

Package Dimension

1X2
2X2
1X2 SM Filter Coupler
2X2 SM Filter Coupler
  • Due to ongoing design improvements, the package size is subject to change.
  • High power device package must be mounted onto heat sink (active cooling is suggested) with thermal paste.

Order information

P/N: SMFC-①-②-③-④-⑤-⑥-⑦

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.

① ② ③ ④ ⑤ ⑥ ⑦
Port Operating Wavelength Power Handling Coupling Ratio Pigtails Diameter Fiber Length Connector
102:1×2

202:2×2

 78:780nm

85:850nm

 L:<0.5W

1:1W

2:2W

10:10W

 50:50/50

40:40/60

30:30/70

20:20/80

10:10/90

01:1/99

XX: Others

 25:250μm bare fiber

90:900μm Loose Tube

XX: Others

 08:0.8m

10:1.0m

XX: Others

 00: None

FP: FC/PC

FA: FC/APC

XX: Others

Part Number Example: SMFC-102-78-L-50-90-10-FA

Description: 780nm SM Filter 1×2 Coupler- 0.5W, 50:50 coupling ratio, 1.0m 780-HP fiber with 0.9mm OD loose tube, and 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.