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High Precision Fiber WDM Filter Red / Blue Optical Fiber Filter For FTTx Access Networks
High Precision Fiber WDM Filter Red / Blue Optical Fiber Filter For FTTx Access Networks
Specifications
Place of Origin :
China
Brand Name :
Gracyfiber
Certification :
ISO CE RoSH
MOQ :
100pcs
Name :
Optical Fiber Filter
Power Handling :
Up to 500 mW
Isolation :
≥ 30 dB
Insertion Loss :
≤ 1.0 dB
Return Loss :
≥ 45 dB
Operating Temperature :
-40°C to +85°C
Wavelength Range :
1260nm to 1650nm
Payment Terms :
T/T
Description
High-Precision Red/Blue Optical Fiber Filters (Red/Blue Optical WDM Filters)
1. Product Overview

GRACYFIBER's Red/Blue Band Fiber WDM Filter is an optical wavelength management device based on high-performance thin-film filter (TFF) technology, designed for precise combining and splitting of multi-band signals over a single fiber. This filter comprehensively covers an ultra-wide spectrum of 1260–1620 nm, supporting not only Red/Blue band wavelength separation in the core C-band but also providing various classic wavelength combinations such as 1310/1550 nm, 1550/980 nm, and 1310/850 nm. Utilizing precision manufacturing processes for an all-fiber structure, this device features ultra-low insertion loss, high channel isolation, and extremely low polarization-dependent loss (PDL). Whether integrated into miniature optical modules or deployed in metropolitan area networks, FTTx access networks, or complex system-level optical test platforms, it ensures efficient routing and absolute stability of backbone traffic.

2. Product Features
Parameter Unit Value
Operating Wavelength nm 1260~1620
Pass Band Wavelength nm Red (1547.4~1561) Blue (1530~1543.2 ) 1550 (1528-1565) 1310(1260~1360)
Reflect Band Wavelength - Blue( 1530~1543.2) Red (1547.4~1561) 980 (965-995) 850 (800~900)
Insertion Loss Max.Pass dB 0.6 0.6 0.6 0.6
Max.Reflect dB 0.4 0.4 0.4 0.4
Isolation Transmission dB ≥30 ≥30 ≥30 ≥30
Reflection dB ≥15 ≥15 ≥15 ≥15
Ripple Max dB 0.3 0.3 0.3 0.3
PDL Max dB 0.10
Return Loss Min dB 40
Directivity Min dB 50
Power Handing Max mW 300
Fiber Type - G67A1/ A2/ B3 or SMF-28 SMF-28&HI1060 SMF-28&OM1..OM5
Fiber Coating um 250 µm / 900 µm loose tube
Fiber Length mm 1000
Connector - LC/UPC or Customized
Dimensions (HxWxD) mm Φ5.5xL38, 90x20x10, 120x80x18, 155x129x29, 482x250x44
Operating Temperature °C -5~65
Storage Temperature °C -40~85

(Designed specifically to solve your pain points of crosstalk and multi-service coexistence in single-fiber bidirectional transmission)

Features: Precise red/blue band separation and flexible multi-band support

Solved Pain Points/Value: Capable of precisely separating the C-band red band (Red Pass: 1547.4~1561 nm) and blue band (Blue Reflect: 1530~1543.2 nm). This greatly unlocks the physical potential of single-fiber bidirectional (BiDi) DWDM systems, completely preventing Rayleigh scattering crosstalk in opposite-direction signals; simultaneously, it can also perfectly separate the 980 nm wavelength and 1550 nm signal wavelength used in EDFA pump lasers.

Features: Ultra-low insertion loss (Max 0.6 dB) and extremely low PDL

Pain points addressed/value benefits: Maximum transmission loss is strictly controlled at an extremely low 0.6 dB at both the transmission and reflection ends (only 0.4 dB at the reflection end). Combined with a maximum polarization dependent loss (PDL) of only 0.10 dB and in-band flatness (Ripple) of 0.3 dB, it saves you crucial optical power budget in long-distance cascaded networks and ensures polarization state stability of high-speed coherent signals.

Features: High channel isolation and superior directivity address pain points/value

Value: Transmit channel isolation up to ≥30 dB, reflective channel isolation up to ≥15 dB, and directivity up to ≥50 dB with return loss up to ≥40 dB. This forms a robust optical barrier, effectively filtering out out-of-band noise and residual pump light, significantly improving the optical signal-to-noise ratio (OSNR) at the receiver.

Features: Comprehensive compatibility with specialty optical fibers and high power handling capabilities

Pain points addressed/value: The device can handle input optical power up to 300 mW and is compatible with various optical fibers depending on the wavelength configuration: such as HI1060 specialty fiber for 980nm pumping, standard SMF-28 single-mode fiber, and even OM1~OM5 multimode fiber. This provides optical module and amplifier developers with "one-stop" low-level device-level support.

3. Applications

This filter is a key component for achieving fiber optic resource multiplexing and optical path protection:

  • C-band Red/Blue Band Separation: Core frequency division node in single-fiber bidirectional (BiDi) DWDM systems and long-haul optical transmission backbone networks.
  • Optical Amplifier and Laser System Integration: Efficiently combines 980 nm pump light and 1550 nm signal light in the EDFA.
  • 1310/1550 nm Service Coexistence: Perfectly achieves lossless superposition of traditional data services and analog video signals on the same fiber.
  • Hybrid PON and FTTx Access Networks: Manages and routes specific wavelengths of different generations of PON networks (such as GPON and XGS-PON).
  • Optical Monitoring and Protection Paths: Separate specific monitoring wavelengths (e.g., 1625/1650 nm) in a system-level test platform.
  • High Precision Fiber WDM Filter Red / Blue Optical Fiber Filter For FTTx Access NetworksHigh Precision Fiber WDM Filter Red / Blue Optical Fiber Filter For FTTx Access Networks
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Product Detail
Place of Origin :
China
Brand Name :
Gracyfiber
Certification :
ISO CE RoSH
MOQ :
100pcs
Name :
Optical Fiber Filter
Power Handling :
Up to 500 mW
Contact Supplier
High Precision Fiber WDM Filter Red / Blue Optical Fiber Filter For FTTx Access Networks

Shenzhen Gracyfiber Technology Co., Ltd.

Verified Supplier
2 Years
guangdong, shenzhen
Since 2014
Business Type :
Manufacturer
Main Products :
Polarization Maintaining, Optical Fiber Array, Network Visibility
Employee Number :
150~200
Certification Level :
Verified Supplier
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