SNGPON155

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The SNGPON155 establishes a network between the subscribers network access line and the core network. It is a physical layer device operating independently and is used as a bridge between point-to-point (P2P) and point-to-multipoint (P2MP) access behaviors. It is a multi-function device that provides non-blocking forwarding, media access control, scheduling, and control of the optical network. This article will focus on the oscillator application field and working principle of the SNGPON155.

SNGPON155 oscillators are widely used in optical transmission systems and can be divided into local oscillator(LBO) and remote oscillator(RBO). The LBO is a locally installed device in the optical fiber distribution network’s optical nodes, while the RBO is outside the node precisely tuned to each wavelength and matched between nodes.

In most optical transmission systems, the LBO is used to generate optical signals and provide external modulations. It can protect signal stability, reduce the insertion loss of the optical path and ensure signal integrity. The RBO is mounted externally on the optical module at its output port to ensure signal stability and integrity in the same manner as the LBO.

The working principle of the SNGPON155 oscillator is based on the optical feedback loop. As the incident light passes through the lenses, a feedback loop is established between the light incident on the optical and electro-optical elements. The light beam is usually affected by noise, drift, and other loss as it travels down the optical fiber, resulting in fluctuations in the signal amplitude.

When the incident light passes through the SNGPON155 oscillator, the frequency and phase of the incident light is monitored and used to fine-tune the frequency of the transmitted light. A feedback of the wavelength can then be applied to the outgoing light beam so that the frequency and phase of the signal are maintained. This type of optical loop eliminates the need for a refractive fiber loop, resulting in greater control of the frequency, power, and phase of the transmitted light.

It is the combination of these elements that makes the SNGPON155 oscillator a highly efficient and precise device for stabilizing optical transmission systems. The SNGPON155 oscillator is able to provide stable and reliable signal transmission from the point-to-point (P2P) and point-to-multipoint (P2MP) subscribers network access line to the core network, helping to maximize the effectiveness of the entire system.

In summary, the SNGPON155 oscillator is a powerful device for use in optical transmission systems. Its local and remote oscillators are able to provide a robust and reliable signal transmission and its optical feedback loop ensures high-precision signal frequency, power, and phase control.

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