NakuLaser Blog

 In the vast field of optical communication, L-band erbium-doped fiber amplifiers are playing an increasingly crucial role. The L-band, following the C-band, is a valuable spectrum resource that has been extensively explored in dense wavelength division multiplexing (DWDM) systems. The L-band erbium-doped fiber amplifier, based on erbium-doped fiber amplifier (EDFA) technology, is a core device specifically designed for efficient amplification of signals in this band, providing powerful support for long-distance, high-capacity optical communication systems. This is an L-band erbium-doped fiber amplifier.  This product uses an LCD touchscreen for control and display of operating parameters. We can see the amplifier's current input and output power, Pump Current (C1/C2), and pump laser temperature (T1/T2) on the screen. We can set the operating mode and adjust parameters on the screen. Click the Mode area to select the operating mode. In APC mode, we can set the power. Click th...

 This is a Ytterbium-doped fiber amplifier. High power YDFA has built-in cooling fan. Here is a desktop type, customizable module fiber amplifier. The working mode can be set to ACC or APC. Click the Mode area to switch the working mode. In ACC(Automatic Current Control) mode, set the operating current. In APC(Automatic Power Control) mode, set the output power. Use the up and down arrow keys on the right side of the screen to adjust the corresponding parameters. We can also click 'Power Set' or 'Current Set' to enter the value you want. Ytterbium-doped fiber amplifier (YDFA) generates gain by pumping ytterbium-doped fiber with semiconductor laser, and is used to amplify optical signals in the 1030~1080nm band. The output power is continuously adjustable, and it has the advantages of high gain and low noise. The desktop YDFA is convenient for experimental operation, and the user can adjust the pump current and output power through the panel. A more compact modular YDFA...

 The L-band high-power erbium-doped fiber amplifier is based on the principle of stimulated amplification of optical signals in erbium-doped fiber. It adopts efficient single-mode fiber optical amplification design and high-power laser heat dissipation technology to achieve high-power output of 1570~1605nm wavelength laser. It has the advantages of high power and low noise and can be used in fiber optic communication systems, fiber optic sensing, laser radar, etc. This is a L Band 37dBm erbium-doped fiber amplifier. High power EDFA has built-in cooling fan.  Here is a desktop type, customizable module fiber amplifier. The output can be adjusted on the screen . Use the up and down arrow buttons on the screen to adjust the power directly. You can also click 'PowerSet' or 'CurrenSet' and enter your desired power value. The amplifier can also be controlled by software. Click the 'Mode' area to switch the working mode. There are two modes to choose from: ACC and AP...

 The one shown in our laboratory today is a 1550nm infrared single-mode fiber coupled laser. This is a desktop laser, and the output power can be adjusted directly through the buttons on the panel. The output power is adjustable with an adjustment range of 0.5~5W. The adjustment accuracy is 1mW. The laser can also be controlled through software, and the communication interface is RS232. 1550nm is infrared invisible light, and the light spot can be observed with an infrared sensor plate. What is configured here is single-mode fiber, and polarization-maintaining fiber can be customized. The Line-width here is 3.7 MHz, and the line width of 1MHz can be customized.  This laser adopts DFB type laser chip , and cooperates with high-power gain optical path module to realize single-mode fiber output of single-wavelength high-power laser. The professionally designed drive and temperature control circuit control ensures the safe and stable operation of the laser, and the spectrum and...

 Today, what we bring is a high-power modular erbium-doped fiber amplifier . Let's check it now. The one in the video is a C-band 37dBm EDFA with polarization maintaining fiber.  Both PM and SM fibers can be customized. The high power erbium-doped fiber amplifier module type has heat sink. We can control the EDFA through software or host computer commands. The C-band high-power polarization-maintaining erbium-doped fiber amplifier is based on the principle of laser amplification of optical signals in erbium-doped fibers, and adopts a unique multi-stage optical amplification design and reliable high-power laser heat dissipation technology to achieve high-power lasers with wavelengths of 1535~1565nm, PM output. It has the advantages of high power, high extinction ratio and low noise, and can be used in optical fiber communication, lidar, etc. The test report of 37dBm EDFA.

 Ytterbium-doped fiber amplifier (YDFA) generates gain by pumping ytterbium-doped fiber with semiconductor laser , which is used to amplify laser signals in the 1030~1100nm band, Hi1060 single-mode fiber output, the output power is continuously adjustable, with high gain and low The advantage of noise. The desktop YDFA is convenient for experimental operation, and the user can adjust the pump current and output power through the buttons on the front panel. A more compact modular YDFA is also available, which is convenient for users' system integration. Both desktop YDFA and modular YDFA can support PC software control and serial port command control. What we are going to talk about today is 37dBm 5W single-mode YDFA and 40dBm 10W PM YDFA. First up is 5W SM YDFA. This fiber amplifier built-in 3 cooling fans.  The test report of YDFA-37-SM. The following is 40dBm PM YDFA. It's a high power polarization maintaining ytterbium-doped optical amplifier. Civil Laser's high power...