GRACYFIBER's TAP & Isolator Hybrid is a passive optical component that seamlessly integrates a 1×2 fiber TAP with a directional ultrawideband optical isolator into a single miniature package. Designed for high-end fiber optic systems extremely sensitive to back reflections, this device effectively blocks harmful back reflections from the TAP port or downstream links while providing non-intrusive optical signal sampling. It fully supports single-mode fiber, operating in wavelengths of 1310 nm and 1550 nm. With extremely low polarization dependent loss (PDL) and an industrial-grade robust mechanical design, this hybrid device is an indispensable signal protection barrier in DWDM transmission, coherent optical communication, and optical amplifier systems.

(Designed to eliminate backscattering, save internal space, and ensure signal integrity)

• Features: Two-in-one highly integrated structure (TAP + Directional Isolator)
  Addresses pain points/value: Achieves proportional optical power splitting and ultra-wideband directional isolation simultaneously on a single common input link. This not only replaces the cumbersome splicing of two separate components with a single device, but also significantly saves extremely valuable board space within the optical module or EDFA.
• Features: High optical isolation (Isolator COM $rightarrow$ Through $ge 25 text{ dB}$)
  Addresses pain points/value: Effectively suppresses backscattered light caused by connector, end-face, or downstream defects in the optical path. This is crucial for protecting high-power lasers and optical amplifiers that are extremely sensitive to reflections, completely preventing laser lock-up or system signal-to-noise ratio degradation.
• Features: Flexible and precise splitting ratio options (from 5/95% to 50/50%).
  Addresses pain points/value: Provides network architects with fine-grained power allocation capabilities. For example, at an extremely low splitting ratio of 5/95%, the device's insertion loss is only 0.6 dB (95% of channels), maximizing the power budget for backbone traffic while capturing 5% of the signal for security monitoring.
• Features: Ultra-low PDL ($≤ 0.15 dB) and high return loss ($≥ 50 dB).
  Addresses pain points/value: When handling complex polarization-dependent multiplexed signals, extremely low PDL (polarization dependent loss) ensures stable signal transmission. This meets the extremely demanding requirements of 400G/800G coherent optical communication systems for optical component parameters, effectively reducing bit error rates.

This hybrid device is designed for environments with high demands for both signal purity and space utilization:

• Optical Amplifiers & High-Power Laser Systems (EDFA & Raman Amplifiers): Integrated into the input or output of optical amplifiers, simultaneously enabling optical power monitoring and laser protection (supporting up to 300 mW of power handling).
• DWDM & Coherent Optical Transmission Systems: Monitoring and signal isolation of critical nodes in backbone networks.
• Reflection-Sensitive Optical Networks: Completely eliminates system instability caused by back reflections.
• Test & Measurement Setups: Provides a clean, interference-free sampling optical path for precision optical instruments.
• Data Centers & Telecom Infrastructure: Advanced passive optical processing within high-order core routing equipment.