Multi Channel PM Fiber Array V Groove For PM Collimator Photonic Waveguide And Laser

FAQ

1. Regarding laser-waveguide coupling, how do you ensure the polarization extinction ratio (PER) and extremely low back reflection for multiple channels?

Lasers are extremely sensitive to back reflection. We employ a semiconductor-grade ultra-high precision V-groove substrate and a fully automated machine vision alignment system. This not only achieves precise alignment of the stress region (slow or fast axis) of the panda-shaped polarization-maintaining fiber, but also significantly improves the return loss (RL) through precise end-face grinding (e.g., 8° or special angles). This reduces insertion loss (IL) to extremely low levels, and the polarization extinction ratio (PER) of each channel is consistently ≥ 20 dB. 100% of the array undergoes rigorous end-face interferometry and polarization state testing before leaving the factory.

2. What is the operating temperature range of this array? Can it remain stable in the high-heat environment of the laser or chip?

As a high-precision passive optical component, its power consumption is 0W. 

3 .What is the warranty policy for this high-end array product? Which industry reliability standards does it comply with?

Shenzhen Gracyfiber Optic Communication Technology Co., Ltd. adheres to a rigorous precision manufacturing philosophy. All its products have passed ISO9001 quality management system and RoHS environmental compliance certifications, and strictly follow the Telcordia GR-1221-CORE international reliability testing standard. We provide a 3-year standard warranty for this multi-channel polarization-maintaining fiber array. During the warranty period, if optical performance degradation or physical failure occurs due to non-human causes, we will unconditionally provide free replacement service.