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...

 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...

  C+L Band 26dBm Erbium-doped Fiber Amplifier is a device that plays a key role in optical fiber communication systems. It uses erbium-doped technology to amplify optical signals by doping erbium ions in the optical fiber and using the energy level transition of erbium ions. This amplifier has the characteristics of high efficiency, stability, wide bandwidth and low noise, and can significantly improve the performance of optical fiber communication systems. This EDFA operates in the C+L band, which means it can cover a wider spectral range to adapt to the needs of different optical fiber communication systems. Its high power output of 26dBm ensures the stability and strength of optical signals during transmission, effectively reducing signal attenuation and distortion. In addition, the amplifier has excellent noise performance and is able to amplify optical signals while maintaining low noise levels, which is crucial for improving communication quality. At the same time, its wide ...

 The one in the video is a benchtop 40dBm erbium-doped fiber amplifier. The input and output fibers of the PM amplifier are polarization maintaining fiber PM1550 and the connector keys are aligned the slow axis. This EDFA is designed to amplify optical signals up to 10W average power for high power applications at 1550nm wavelength range. The operating current or output power can be adjusted by pressing the button. You can choose the software control function and use the RS232 interface to connect to the software. The two working modes of ACC and APC can be switched. In APC mode, the output power can be adjusted. In ACC mode, the operating current can be adjusted. The high-power polarization-maintaining erbium-doped fiber amplifier is based on the polarization-maintaining double-clad erbium-doped fiber amplification technology. It adopts a unique fiber packaging process and a reliable high-power laser protection design to achieve high-power laser polarization-maintaining output i...

 This is a C-band 37dBm high power erbium-doped fiber amplifier . The high-power EDFA module comes with a heat sink. We can control EDFA through software or host computer commands. Both PM and SM fibers can be customized. This is a modular design, and the desktop EDFA can also be customized, and the desktop EDFA can be controlled by buttons. High power erbium doped fiber amplifier (EYDFA-HP-BA), based on amplification technology of double clad erbium doped fiber, unique optical packaging technology, and with reliable hardware light path protection design, realized high power laser output in C band or L band, It has the advantages of high gain and low noise, and can be widely used in CATV, optical fiber communication, laser radar, etc.. The interface of the control software. The test report of 37dBm EDFA.

 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.

 This is a C-Band 30dBm module type EDFA . It is equipped with SMF-28e single-mode fiber, and polarization-maintaining fiber can also be customized. This is a high-power EDFA, with a row of aluminum sheets on one side of the shell for easy heat dissipation. This is a modular design, and desktop EDFA can also be customized. High power erbium doped fiber amplifier (EYDFA-HP-BA)，based on amplification technology of double clad erbium doped fiber ， unique optical packaging technology,  and with reliable hardware light path protection design, realized high power laser output in C band or L band， It has the advantages of high gain and low noise, and can be widely used in CATV, optical fiber communication, laser radar, etc.. The test report & spectrum analysis chart &  relationship between power current and output power of C-Band 30dBm SM EDFA.

 It's a 40dBm erbium-doped fiber amplifier . The working status of this EDFA is controlled by buttons. This is a very high power fiber amplifier with 3 cooling fans inside. This EDFA is configured with single-mode fiber. The left and right buttons switch between ACC/APC two control modes. ACC automatic current control, the current setting range is 0~9600mA. APC automatic power control, the power setting range is 23~33dBm.The up and down buttons are to adjust the current/power. The middle button is the confirmation key. Let's check it now. High-power single-mode erbium-doped fiber amplifier (EYDFA-HP) is based on the principle of laser amplification of optical signals in erbium-doped fiber, using unique multi-stage optical amplification design and reliable high-power laser heat dissipation technology to achieve the wavelength range of 1540~1565nm Internal high-power laser output. It has the advantages of high power and low noise, and can be used for optical fiber communication,...

Newest EDFA Products list. Include C-band / L-band , Pre – Amplifier PA, Booster – Amplifier BA EDFA. EDFA Type EDFA Description Product Link EDFA-C-PA-Single Channel EDFA: Erbium-doped Fiber Amplifier Wavelength range: 1530~1565nm C-band PA: Pre-Amplifier, small signal amplifier Single Channel: Recommended for single wavelength amplification. But when the multi-wavelength light source is amplified, the gain flatness is too large. Gain flatness: 3dB Click Here EDFA-C-BA-Single Channel EDFA: Erbium-doped Fiber Amplifier Wavelength range: 1530~1565nm  C-band BA: Booster Amplifier, power amplifier Single Channel: Recommended for single wavelength amplification, high output power. But when the multi-wavelength light source is amplified, the gain flatness is too large. Gain flatness: 3dB Click Here EDFA-C-PA-Flat Gain EDFA: Erbium-doped Fiber Amplifier Wavelength range: 1530~1565nm  C-band PA: Pre-Amplifier, small signal amplifier Flat Gain: Recommended for m...

C-Band 15~26dBm  EDFA  In-Line Amplifier Desktop Type With LCD Display In-Line amplifier (LA)  is an optical power amplifier product dedicated to line relays in fiber laser or fiber communication systems. It combines the advantages of PA amplifiers and BA amplifiers. It has the advantages of high gain, high transmission power, and relatively low noise. Between fiber segments to increase the length of the relay or the corresponding single-point to multi-point part of the optical access network to compensate for the branch loss. [Features] Wide wavelength range High gain factor High output power [Applications] Optical fiber communication Optical fiber sensing Fiber laser [Specification] Parameters Unit Typical Value Remarks Wavelength Range nm 1530~1565nm C-band Input power dBm -25 ~ -3 Saturated Output Power dBm 13/17/23/25/26 @-10dBm input Small Signal Gain Factor dB 35 @-25dBm Input Noise Figure dB 5.5 @ -10...

Abstract: Erbium doped fiber amplifier was pumped by A l-free 980nm InGaAs/ InGaAsP/ InGaP high power quantum well laser.   At pump power of 20mW, the gain is 33dB, the maximum gain  coefficient is 6 . 7dB/ mW and the saturated output power is 6dBm. The gain is as a function of  fiber length and pump powers , it is also as a function of output powers. 1 Introduction With the deep development of optical communication technology, the development of erbium-doped fiber amplifier (EDFA) as a direct optical amplification technology has become the mainstream of today's research. EDFA has the compatibility of erbium-doped fiber and communication fiber, low coupling loss, good stability, high gain, high bandwidth, high efficiency, low noise, no polarization dependence, and simple structure. Due to its small size, easy to use and high practical value. Therefore, it is a key component for achieving all-optical fiber-optic communication, such as coherent optical communicatio...