Blog

Building a clean, reliable video overlay on GPON or XGS-PON starts with choosing the right CATV optical receiver. The goal is simple: preserve picture quality while keeping your fiber resources and power budget in check. A good approach is to map your performance targets (noise, linearity, output level, management features) to product families, then shortlist a Customizable cable TV module that matches your FTTH rollout and CPE design.

Start with noise performance. A Low Noise Optical Receiver preserves carrier-to-noise ratio (CNR) and minimizes distortions like CSO/CTB, which is critical as more services ride on the same fiber. For reference, Sanland’s SMO-P28 lists CNR ≥ 47 dB with CSO/CTB ≤ −57 dBc, while the SMO-P42 specifies CNR around 43 dB—use these figures as benchmarks when comparing options in similar form factors.

Next, lock in level stability. Optical input can swing with split ratios and plant variations, so pick a High-Performance CATV AGC Module that flattens RF output across a wide input window. For example, SMO-P42 offers an AGC dynamic range of −10 to +2 dBm with a typical RF output near 78 dBµV, while SMO-P28 targets AGC from −10 to 0 dBm and ~81 dBµV output—handy targets when you design tap losses and in-home distribution. Many FTTH modules also come in compact builds with SC/APC or FC/APC connectors and run off a simple 5 V rail, keeping CPE designs small and efficient.

Don’t overlook integration and monitoring. Receivers with integrated high-isolation WDM + PIN reduce BOM and space while simplifying 1550 nm video overlay alongside data wavelengths. Extras like I²C access, optical power/RF level/temperature telemetry, and RF enable/disable make field diagnostics faster and enable smarter ONUs. Sanland’s SMO-P42 illustrates this integration approach and is designed expressly for FTTH ONU use in triple-play deployments.

Why SANLAND for your next CATV optical receiver? Beyond competitive specs, SANLAND backs its CATV Optical Receiver Module line with a one-stop FTTx portfolio and experience dating back to 2002—meaning faster selection, cohesive interoperability, and mature manufacturing. The product range spans AGC receivers for GPON/XGS-PON and options positioned for customization (e.g., Custom AGC / Customizable cable TV module), so you can match noise, linearity, connectors, and control interfaces to your design without wrestling with multi-vendor compromises. Pair that with responsive engineering support and a focused fiber-access roadmap, and you get a SANLAND-branded Low Noise Optical Receiver or High-Performance CATV AGC Module that ships with both performance confidence and service reliability.