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...

 This is a 1550nm fiber coupled laser. This one uses the latest touch screen technology. It is coupled to the polarization-maintaining fiber output. The output can be adjusted on the screen. Its setting range is 25dBm to 35dBm. It can also directly set the value you want. Use the up and down arrow buttons on the screen to adjust the power directly. You can also click "PowerSet" and enter your desired power value. Click the unit field to switch between dBm and W. 1550nm is infrared laser, which is invisible to the naked eye. We need to observe the light spot on the infrared detection card. This laser adopts DFB type laser chip, and cooperates with high-power gain optical path module to realize polarization-maintaining 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 power remain stable for a long time. The modular package has a ...

 This is a 1650nm 60mW fiber coupled laser. Its output power is adjustable, which can be adjusted by rotating the knob. The coupled fiber here is single-mode fiber. This is an infrared laser, and the light spot is invisible to the naked eye. We can use an infrared detection card to observe the laser spot. This infrared laser uses advanced 1650nm long-wavelength laser technology and is designed for high-precision optical applications. Through single-mode fiber coupling output, it ensures excellent beam quality and stable power transmission, meeting the stringent requirements of laser light sources in scientific research, industry, and medical fields. 1650nm 60mW single-mode fiber laser  are ideal light sources for communications, sensing and medical fields due to their unique wavelength, high power stability and compact design. Their technical parameters and application flexibility can meet the diverse needs from industrial detection to cutting-edge scientific research, and a...

 Desktop fiber optic adjustable attenuator is specially used for attenuation control of optical power in optical fiber optical paths. It has built-in power monitoring, large attenuation range, high adjustment accuracy, and stable power. It can be selected as normally open or normally closed type, and provides desktop or modular packaging.  This is a 1550nm Variable Optical Attenuator. Its attenuation range is 0~30dB, which is adjustable. The adjustment step of the attenuation value is 0.1dB. Single-mode optical fiber is used here. It supports both button adjustment and software control. Connect to PC software via RS232 communication interface. The control software interface. The test report of this optical attenuator. Instructions for use: Turn on the power switch at the back. Use the buttons to adjust the attenuation value. The left and right buttons are used to select the digit to be adjusted. The up and down buttons adjust the corresponding value.

 1550nm 10W fiber-coupled lasers play an important role in science and technology and industry with their unique performance parameters and wide application fields. With the continuous advancement of technology and the continuous expansion of application fields, 1550nm fiber-coupled lasers will surely shine brightly in more fields. Today our laboratory tested a 1550nm 10W high power infrared fiber-coupled laser.  There are 3 working modes to choose from: CW/TTL/Analog on the back of the power supply. Due to the high power, we designed a dedicated power supply to the radiator. The two white interfaces are the fan power interfaces and also need to be plugged in. 1550nm is an infrared laser, and the spot is invisible to our naked eyes. We can use an infrared detection card to observe the laser spot. Through the sponge test, we can see that its power is high and smoke will come out when touched. 1550nm 10W fiber-coupled laser is a laser system that works at a wavelength of 1550...

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. Today I am introducing a brand new module-type 30dBm high-power erbium-doped fiber amplifier, which can also be customized as a desktop module. The operating wavelength is L-Band 1570nm~1605nm, and C-Band amplifiers can also be customized. High power EDFA module has built-in cooling fan. The Input & Output fiber tpe here is SMF-28e, and PM fiber can also be customized. There are two control modes, ACC (Automatic Current Control) & APC (Automatic Power Control). The amplifier can also be controlled by software, the Re...

 This is a 488nm 25mW pigtail laser with drive. There is a knob on the drive to adjust the laser output power. The interface below 'DC 12V' is connected to the power supply. The display screen on the driver shows the current. The optical fiber is a fragile item, so we need to handle it with care and avoid bending it. 488nm 25mW 3.5um single-mode pigtail laser is a high-performance semiconductor laser with the characteristics of stable wavelength, adjustable output power, and high fiber coupling efficiency. Its main parameters include: central wavelength 488nm, output power 25mW, fiber core diameter 3.5um, and single-mode fiber coupling technology. This laser is output through a pigtail, which is easy to connect and integrate with other optical devices, providing great convenience for various applications. In addition, the 488nm 25mW 3.5um single-mode pigtail laser has excellent power stability and can maintain stable output power for a long time, which is crucial for applicatio...

 The 635nm 10W fiber-coupled laser is made of advanced semiconductor materials, with a wavelength stable at around 635 nanometers and small fluctuations in laser output power. This laser not only has a stable wavelength, but also has a high laser output power, which makes it perform well in various applications. Its rugged optical microplate all-solid-state design and collimation technology make the laser highly resistant to shock and able to work stably in harsh environments. The 635nm 10W fiber-coupled laser is an advanced laser device that integrates high efficiency and high stability. With its unique 635nm wavelength and up to 10 watts of output power, this laser has demonstrated excellent performance in many industrial, scientific research and medical applications. First, the 635nm wavelength makes this laser perform well in the red spectrum, suitable for various occasions that require precise indication, positioning or marking. Whether it is alignment operations in precisio...

The 520nm 40W fiber-coupled laser belongs to the visible light band, which makes it perform well in applications that require a specific color light source. At the same time, its power output of up to 40 watts ensures powerful laser energy and is suitable for a variety of high-demand processing and measurement tasks. The bottom of the laser head has a heat sink, which is an aluminum heat dissipation module with 3 fans. There are 3 working modes to choose from on the back of the power supply: CW/TTL/Analog. The regulator button on the power supply is used to adjust the operating current, thereby adjusting the laser output power. Fiber-coupled lasers efficiently couple the laser beam generated by the laser diode into the optical fiber through precise fiber coupling technology. This process requires precise focal length adjustment and angle control to ensure that the beam can enter the optical fiber without loss and be stably transmitted along the path of the optical fiber. Fiber coupling...

 In the field of optics and photonics, amplified spontaneous emission (ASE) broadband light sources are widely used in fiber optic sensing, spectral analysis, biomedical imaging and other fields due to their high output power, low noise and wide spectral coverage. In particular, the ASE broadband light source in the 2000nm band has attracted widespread attention in scientific research and industry due to its unique mid-infrared band characteristics. This is a desktop ASE broadband light source. The wavelength range is 1850nm ~ 2000nm. It supports a wide range of voltages from 100 ~ 240V. The output power is about 10mW and is not adjustable, but other output powers can be customized. We need to use infrared photosensitive film to observe the light spot of the laser in this band. The test sheet of this ASE broadband light source. The 2000nm band ASE broadband light source is based on thulium fiber laser technology, with high output power and a spectrum covering 1850~2000nm, suitabl...

 The 40dBm ytterbium-doped fiber amplifier uses advanced ytterbium-doped fiber as the gain medium. Ytterbium is widely used in fiber amplifiers due to its unique energy level structure and efficient energy conversion characteristics. When pump light (usually high-power laser) is injected into ytterbium-doped fiber, ytterbium atoms absorb the energy of the pump light and undergo energy level transitions. Subsequently, when the optical signal passes through the fiber, the ytterbium atoms are stimulated to radiate photons of the same frequency as the signal light, thereby amplifying the optical signal. It is a 1030~1070nm Ytterbium-doped fiber amplifier. The saturated output power is 40dBm @0dBm input. The 40dBm YDFA is a high-power amplifier, with an additional Monitor interface. The Monitor is used to monitor or synchronize signals with low power. And it has built-in cooling fan. Configured with RS2323 interface, available software or control command YDFA. It supports two working m...