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1-1200MHz RF Broadband Power Amplifier
A high-performance broadband RF power amplifier, delivering exceptional gain control and output power for diverse RF application scenarios. Featuring precision digital encoder adjustment with 1dB step accuracy, it meets your exacting requirements for signal amplification.
Release Date：2026-01-14
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Impact and Suppression Applications of Coherent Fading in Distributed Acoustic Sensing (DAS) Systems
In Distributed Acoustic Sensing (DAS) systems, distributed perception of vibration or acoustic information along the optical fiber is achieved by injecting narrow-linewidth coherent laser pulses into the fiber, receiving backscattered signals from a multitude of Rayleigh scattering points within the fiber, and demodulating their phase or intensity variations.
Release Date：2026-01-12
Integrated DAS Optical Module
To facilitate researchers, system developers, and product engineers in the optical fiber sensing field in constructing their own Distributed Acoustic Sensing (DAS) systems more efficiently, Shanghai Kunlian Technology has launched an integrated DAS module. This module highly integrates multiple optoelectronic components from traditional DAS systems—such as complex light sources, modulation devices, amplifiers, and control units—into a compact structure roughly the size of a "slightly thick book," significantly simplifying the system setup process. Users only need to pair it with a high-speed data acquisition card installed in an industrial computer (or standard PC) to complete all hardware preparations for the DAS system. The remaining development efforts can then focus on implementing the host computer software, signal processing algorithms, and system application logic. Shanghai Kunlian Technology also offers complimentary technical support services to assist in the rapid validation and integration of the DAS system.
Release Date：2026-01-08
DAS-U1000 Extreme Edition Demodulation Card
The DAS-U1000 Demodulation Card is a flagship-grade DAS demodulation system engineered for extreme environment monitoring and high-precision sensing applications. Equipped with a 4-channel 16-bit ADC featuring a 1000 MSPS sampling rate and a single-channel 14-bit DAC operating at 2500 MSPS, it supports external reference clock input. This configuration comprehensively addresses the demanding technical requirements for simultaneously achieving long-distance, high dynamic range, and high spatial resolution performance.
Release Date：2026-01-06
DAS-U250 Ultimate Edition Demodulation Card
The DAS-U250 is a high-performance Distributed Acoustic Sensing (DAS) system launched by Shanghai Kunlian Technology, specifically engineered for application scenarios demanding high precision and reliability in extreme environments. Compared to the standard version, the DAS Advanced Edition integrates Coherence Fading and Polarization Fading noise suppression technologies, significantly enhancing its anti-interference capability and ensuring stable, efficient high-precision data acquisition even in complex signal environments. The system boasts an exceptional spatial resolution better than 5 meters, supports remote monitoring and high-precision localization, and is widely applied in fields such as petroleum exploration, deep-sea monitoring, high-precision seismic monitoring, military reconnaissance, and environmental surveillance.
Release Date：2026-01-05
PDH Sensing Demodulator
This PDH frequency stabilization system features a typical laser linewidth of 0.1 kHz, a tunable range of 1549.4–1550.3 nm, support for 1–12 strain sensing channels, and a feedback speed of up to 5 kHz (customizable). It is suitable for applications requiring precise laser frequency control, such as optical communications and precision sensing.
Release Date：2025-12-30
OFDR-KL9600 Demodulator
OFDR-KL9600 Distributed Optical Fiber Sensing System (Independently developed by Shanghai Kunlian Technology) This system employs a narrow-linewidth, highly stable frequency-swept laser source, combined with a high-dynamic-range interferometric receiver link and an adaptive Rayleigh scattering spectrum tracking algorithm. While maintaining extremely high spatial resolution, it significantly enhances the system's signal-to-noise ratio and measurement stability. Unlike the pulsed ranging mechanism of traditional OTDR-type systems, OFDR utilizes a frequency-modulated laser to generate phase encoding within the scanning range. By performing Fourier inversion on the spectral structure of the interference signal in the frequency domain, it obtains a Rayleigh scattering reflection profile along the length of the optical fiber.
Release Date：2025-12-29
Fundamental Principles of Fiber Optic Sensing Technology
Fiber Optic Sensing (FOS) refers to a class of detection technologies that utilize optical fibers both as a transmission medium and as the sensing element itself. By monitoring changes in the intensity, phase, polarization, frequency, or scattering characteristics of light propagating through the fiber, it enables precise measurement of physical parameters such as temperature, strain, pressure, vibration, acoustic waves, and displacement. Owing to its advantages—including immunity to electromagnetic interference, corrosion resistance, long‑distance transmission capability, lightweight design, and high sensitivity—fiber optic sensing has been widely adopted in fields such as energy, transportation, civil engineering, oil and gas, and safety monitoring.
Release Date：2025-12-27
Analysis of the Technical Principles and Advantages of Chirped DAS Technology
Chirped DAS is an important innovation in distributed acoustic sensing technology. By virtue of linear frequency-modulated chirp technology and digital signal processing methods, it fundamentally overcomes the limitations of traditional DAS in terms of coherence fading, signal-to-noise ratio, and stability. As a leading enterprise driving the development of DAS technology, Shanghai KLinx Technology has continuously optimized chirped DAS technology and implemented it in more engineering application fields, providing high-performance and reliable distributed optical fiber sensing solutions for industrial clients.
Release Date：2025-12-22