PM Tap Photodetector 1260nm 1620nm In Line Power Monitoring Module For DWDM / ROADM

The PM Tap Photo Detector is a highly integrated device designed for in-line power monitoring applications within Polarization-Maintaining (PM) fiber systems. It integrates a precision tap-splitting structure and a high-sensitivity photodiode directly into the PM link. This design allows for the extraction of a small portion of optical power from the main link for real-time detection—while preserving the polarization characteristics—and minimizes any impact on the main link's transmission performance. The product supports a wide operating wavelength range of 1260 to 1620 nm; commonly available tap ratios include 1:99, 3:97, and 5:95, facilitating selection based on the specific requirements of different systems regarding monitoring accuracy and link loss tolerance.

*Above specifications are for devices without the connectors.

*For devices with connectors, IL will be 0.3dB higher, RL will be 5dB lower.

*The PM fiber and the connector key are aligned to the slow axis, fast axis is blocked.

• Supports a wide operating wavelength range of 1260–1620 nm
• Integrates both tap-splitting and photodetection functions
• Supports common tap ratios: 1:99, 3:97, and 5:95
• Low insertion loss in the main link (typically ~0.35–0.5 dB)
• Built-in high-sensitivity photodiode featuring fast response and wide bandwidth
• Low dark current, ensuring a superior signal-to-noise ratio (SNR) for low-power monitoring
• Utilizes Polarization-Maintaining (PM) Panda Fiber; default keying aligns with the slow axis
• Supports customization of pigtail length, jacket dimensions, and connector types
• Operating temperature range: -5°C to 65°C; Storage temperature range: -40°C to 85°C
• Suitable for high-density module integration and closed-loop power control systems

• DWDM channel power monitoring
• OLP (Optical Line Protection) monitoring
• ROADM module power balancing monitoring
• Fiber amplifier gain monitoring
• Fiber laser systems
• Coherent communication systems
• OEM optical monitoring modules
• Laboratory and test platforms