Project Description

2.0μm Single-Mode Fused Coupler

DK Photonics optical 2.0μm single-mode fused coupler is used to split off a portion of light to allow for optical monitoring and feedback. These devices are used extensively in fiber amplifier power control, and in transmission equipment for performance monitoring and feedback control. Our ultra-low polarization dependent loss couplers offer low levels of sensitivity to polarization, enable more effective monitoring and management of optical networks. These couplers are available in a wide range of split ratios, lengths, and packaging. Custom terminations are also available.

Features Applications
·         Low Insertion Loss

·         Low Polarization Dependent Loss

·         High stability & Reliability

 ·         EDFA

·         Fiber Laser

·         Testing Instrumentations

Performance Specifications

Parameter Unit Values
Operating Wavelength nm 1900,1950,2000,2050
Operating Bandwidth nm ±15
Max. Excess Loss dB 0.4
Max. Insertion Loss 50/50 dB 3.6/3.6
40/60 dB 4.8/2.8
30/70 dB 6.0/2.0
20/80 dB 8.0/1.5
10/90 dB 11.5/0.75
5/95 dB 14.5/0.5
2/98 dB 18.5/0.35
1/99 dB 22/0.3
Max. Polarization Dependent Loss dB 0.15
Min. Directivity dB 50
Max. Optical Power(CW) W 0.5,2,5,10
Fiber Type – SMF-28e or Nufern SM 1950
Operating Temperature ℃ 0~+65
Storage Temperature ℃ -40~+85
Package Dimension mm Ф3×45(bare fiber), Ф3×60(0.9mm loose tube)
  1. Above specifications are for device without connector.
  2. For devices with connectors, IL will be 0.3dB higher, RL will be 5dB lower. Powers transmit through the connector less than 2W.

Order information  P/N: FBTC-①-②-③-④-⑤-⑥-⑦-⑧-⑨-⑩

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.

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