The SAN-U Laser Methane Sensing Module is developed using Tunable Diode Laser Absorption Spectroscopy(TDLAS)technology,ensuring stable,reliable performance and an extended service life.Utilizing a 1653.7nm laser for precise methane gas detection,the module is resistant to interference from water vapor and other gases.Its folded optical path design ensures long absorption   paths.The module features strong corrosion resistance,high precision,fast response,and low power consumption,making it suitable for use in various complex environments.It is widely  applied  in methane leak detection and alarm systems across coal mines,urban pipelines,and industrial chemical facilities.    

This product is a human-eye-safe 1550nm pulsed fiber laser source developed by SAN-U Optronics. It features high peak power, high electro-optic efficiency, low ASE and nonlinear effect noise, and a wide operating temperature range. The product is suitable for use in lidar systems and various sensors.  

PD300-TO46-BL Series Features： ● Large active area convenient for optical coupling ● Low Dark Current ● Respond to C-Band and 1310nm; L-Band ● High reliability Applications： ● Near infrared sensors ● Laser diode and LED power monitor ● Near infrared spectroscopy ● Optical measurements and sensin

PD80-TO46-FW Series Photodiode Features： ● Low Voltage Operation ● Low Capacitance and High Speed with a PIN Structure ● Low Dark Current ● Excellent Stability Applications： ● Digital and Analog Optical Communication ● Optical LAN ● OTDR

Features 特點： ● High-stability 高穩(wěn)定性 ● 1653nm DFB laser with Heating Resistor 帶有加熱電阻的 1653nm DFB 激光器 ● Low cost, high life 低成本、高壽命 Applications 應用領域： ● Photonic Sensing (gas) 光子傳感（氣體）  

The TAP PD adopts high-performance InGaAs/InP PIN photodiode packaging internally. Based on its unique optical design, the product has the advantages of high responsiveness, low dark current, and high reliability. Due to its compact structure and small size, it is easy to integrate into high-density Tap PD fiber optic communication systems.

Features: ● Low Voltage Operation ● Low Capacitance and High Speed with a PIN Structure ● Low Dark Current ● Excellent Stability Applications: ● Digital and Analog Optical Communication ● Optical LAN ● OTDR

Features： ● Low Voltage Operation ● Low Capacitance and High Speed with a PIN Structure ● Low Dark Current ● Excellent Stability Applications： ●10Gigabit Ethernet ● 8G Fiber Channel ● SONET/SDH OC-192

● High Responsivity,front side illuminated,double-side pads ● 500um,round optical window ● For near-infrared sensing,monitoring and meter/instruments ● Low Dark Current ● Respond to C-Band and 1700nm; L-Band ● Optimized for Methane(CH4) detection(1654nm),improving responsivity in low-temperature environment

Features: ● Low Capacitance and High Speed with a Mini PIN Structure ● Low Voltage Operation ● Low Dark Current ● Excellent Stability Applications: ● Optical Fiber Communication Systems to1.0GHz ● Fiber Power Monitoring ● Spectral Measurement

Features: ● Low Voltage Operation ● Low Capacitance and High Speed with a PIN Structure ● Low Dark Current ● Excellent Stability Applications: ●10Gigabit Ethernet ● 8G Fiber Channel ● SONET/SDH OC-192

Features: ● Low capacitance and high speed with a PIN structure ● Low dark current ● Low voltage operation ●  High reliability Applications: ● Digital and analog optical communication ● Optical LAN ●  OTDR