Fiber Splitters play the role of the "heart" in Passive Optical Networks (PON) and multi-channel fiber sensing systems. Any loss of optical power or uneven distribution directly impacts the performance and budget of the entire link.
[Beijing Dacheng Yongsheng Technology Co., Ltd. (DCYS)] is committed to providing high-precision, high-reliability fiber splitters. Below are the most common questions from engineers regarding the splitter's precision, loss, and uniformity, along with our expert answers.
Q1: How is highly uniform optical power distribution guaranteed? What is the specific "Uniformity" metric?
A: Uniformity is the core advantage of PLC splitters, strictly controlled through advanced technology.
- Technical Foundation: OFSCN® splitters manufactured using Planar Lightwave Circuit (PLC) technology rely on the photolithography and etching processes of semiconductor fabrication, ensuring the high consistency of the internal waveguide structure of the splitting chip. This minimizes the split ratio error across different ports.
- Uniformity Metric: Uniformity measures the difference between the maximum loss and the minimum loss across all output ports. For standard split ratios (such as 1x8 or 1x16), we strictly control the uniformity to be less than 0.8 dB (refer to the product specification sheet for specific values), ensuring balanced power distribution and simplifying your system's power budget.
Q2: How is the splitter's "Insertion Loss (IL)" calculated? How is the loss minimized?
A: Insertion Loss is the efficiency metric of the splitter, guaranteed to be close to the theoretical value.
- Calculation Method: Insertion Loss (IL) = Theoretical Loss (based on the split ratio, e.g., theoretical loss for 1x4 is approx. 6.0 dB) + Excess Loss (non-theoretical loss caused by the manufacturing process).
- Low Loss Advantage: We minimize excess loss through high-coupling-efficiency input/output fiber arrays and high-quality chips. This ensures that the actual IL of the OFSCN® splitter is very close to the theoretical value. For example:
- 1x8 Splitter: Actual IL is controlled to be within 10.7 dB (theoretical value 9.0 dB), leaving sufficient power margin.
- High-Reliability Packaging: Robust packaging is used to protect the chip from external stress, preventing stress-induced increases in excess loss.
Q3: What is "Polarization Dependent Loss (PDL)"? Why is it crucial for Fiber Optic Sensing Systems (like vibration sensing)?
A: Polarization Dependent Loss (PDL) measures the splitter's impact on signal precision.
- Definition: PDL measures the maximum difference in loss experienced by the optical signal within the splitter when exposed to different polarization states.
- Sensing Importance: In high-precision sensing applications (such as Coherent OTDR or fiber optic hydrophones), the polarization state of the signal affects measurement results. If the PDL is too high, it leads to a reduction in the signal-to-noise ratio (SNR) and a decrease in measurement accuracy.
- OFSCN® Commitment: Our splitters strictly control the PDL to an extremely low level, typically less than 0.2 dB, ensuring your precision sensing system receives stable and high-fidelity signals.
Q4: How stable is the performance of this splitter across a wide operating temperature range?
A: The product is designed to meet industrial-grade wide temperature requirements, ensuring performance does not drift.
- Wide Temperature Range: OFSCN® Fiber Splitters are designed according to industrial-grade standards, with a typical operating temperature range of -40°C to 85°C.
- Stability Guarantee: The packaging materials and internal coupling adhesives are strictly selected and rigorously aged, ensuring that the temperature drift of key performance metrics like split ratio, insertion loss, and PDL is minimal across the entire temperature range, meeting the environmental adaptability requirements of outdoor cabinets and industrial equipment.
[Beijing Dacheng Yongsheng Technology Co., Ltd. (DCYS)] offers a full range of high-performance, high-reliability fiber splitters (including 1xN and 2xN configurations, and customized split ratios), making them the ideal choice for building efficient and stable optical networks.
[Beijing Dacheng Yongsheng Technology Co., Ltd. (DCYS)]
Official Website: https://www.ofscn.org
Product Link: https://www.ofscn.org/connectors/fiber-splitter.html