NakuLaser Blog

 What we are going to demonstrate in today's video is a 772nm 1W fiber coupled laser . The optical fiber is pluggable and customizable. The fiber core diameter,fiber length and interface can be customized according to customer needs. 100μm to 1000μm fiber is optional, the coupling efficiency of different fibers will be somewhat different. The larger the core diameter, the higher the coupling efficiency, usually the coupling efficiency is 80%~90%. CivilLaser's solid-state lasers can be customized for fiber-coupled output.    The output power of the laser is Adjustable from 0 to 1000mW, which can be adjusted by the knob. It supports 3 working modes, CW/TTL/Analog, switch the working mode on the back of the laser power supply. In TTL/Analog modulation mode, an external modulation signal needs to be connected. The 772nm laser is a near-infrared laser, and the light spot is dim.

 Usually we often see visible lasers, but few people will test infrared invisible lasers. Today we tested a 915nm infrared laser and its output power of 3000mW. Then when it is coupled through the fiber, what is the output power of the fiber end? Let's check it now. This is 915nm 3W IR semiconductor laser. It couples a pluggable optical fiber . The fiber can be customized. 100μm~1000μm fiber is optional, the coupling efficiency of different fibers will be somewhat different. The larger the core diameter, the higher the coupling efficiency, usually the coupling efficiency is 80%~90 percent. In addition, the fiber length and interface also can be customzied. Here is 1000μm, SMA interface fiber. CivilLaser's solid-state lasers can be customized for fiber-coupled output.  The output power of the laser is adjustable from 0 to 3000mW, which can be adjusted by the knob. It supports 3 working modes, CW/TTL/Analog, switch the working mode on the back of the laser power supply. In TTL/A

 What I'm going to talk about today is 660nm 1800mW fiber laser system . It supports 3 working modes, CW/TTL/Analog. In TTL/Analog modulation mode, an external modulation signal needs to be connected. In addition, the Lock crystal head cannot be pulled out. External signal Mod Input, no need to connect in CW working mode. To adjust the output power by adjusting the working current: Turn the 'Adjustor' knob clockwise, when the current exceeds the minimum working current, the Laser indicator light turns green, and there is laser output at this time. When the 'Adjustor' is rotated clockwise to the end, it is the max working current and the max output power of the laser. In addition, the red STOP button is used for emergency stop, and it is not used under normal circumstances. The optic fiber can be customized. Here is 1000μm SMA905 interface fiber. 100μm to 1000μm fiber is optional, the coupling efficiency of different fibers will be somewhat different. The larger the

 This is 1615nm infrared fiber coupled laser source . The Optical fiber is removable. Its optical fiber interface is FC/PC, and it can be customized. The 1615nm  laser is an infrared laser, which cannot be observed by the human eye. We use an infrared sensitive film to observe the light spot. The output power is 0~200mW adjustable by adjusting the working current. To adjust the working current, turn the 'Adjustor' knob clockwise, when the current exceeds the minimum working current, the Laser indicator light turns green, and there is laser output at this time. When the 'Adjustor' is rotated clockwise to the end, it is the max working current and the max output power of the laser.

Today we are talking about software-controlled laser source . It is 450nm Blue fiber coupled laser source controlled by software. EasyHost is the control software. The connection between the laser and PC software adopts the communication protocol of RS232. The laser supports two working modes: CW/Modulation. When switching to Modulation, an external signal input is required. This is a fiber-coupled laser, and a free-space output laser can also be customized. Let's check it now. Software operation: Click the [Open COM] button to connect the control circuit of the laser. Multiple laser working parameters can be viewed/set in the software. As a special reminder, it is necessary to set amaximum working current parameter according to the current laser, so as to avoid the later adjusted current being too high and damaging the laser.

 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.

 This is a 1550nm 10mW SLD light source of module type. It is equipped with a single mode fiber. It can be customized power adjustable version. When the power adjustment is selected, the power adjustment is controlled through the RS232 serial communication. The standard version is a fixed power mode, the light source is controlled by the button. We tested it with an infrared photosensitive film, and we could see a light spot. Let's check it now. SLD broadband light source adopts super radiant semiconductor diode light-emitting chip , which outputs broadband spectrum with low coherence degree and high output optical power spectral density. The operating wavelength can be selected from O, S, C, L and other bands, suitable for optical OCT, optical fiber sensing applications. The test data report and spectrum of 1550nm light source.

 It is 532nm DPSS laser source . This laser source can be controlled by software. The connection of the laser and the PC software, using the RS232 communication protocol. The laser supports two modes of operation CW/Modulation, and an external signal input is required when switching to Modulation. Here is the free space output, and it is also possible to customize the fiber-coupled laser .  Software operation. Click the [Open COM] button to connect the control circuit on the laser.  Multiple laser operating parameters can be viewed/set in the software.  As a special reminder, it is necessary to set a maximum working current parameter according to the current laser first, so as to avoid the current of the later regulation being too high and damaging the laser. 

 This is 635nm 160mW red fiber coupled laser source . It support CW and Modulation two working modes. The laser adopts the button control mode by default, and the software control mode can be customized. mWhen using the software control mode, you need to switch the button on the back of the chassis to the PC gear. It is equipped with 200μm multimode fiber, and the fiber is pluggable. The fiber interface can be customized, here is the FC/PC interface, and the buckle should be aligned when installing. Let's check it now. The silver rotation adjusts the current, and the clockwise rotation increases it. When the current exceeds the threshold current, there is laser output . The laser data test report.

 This is a portable laser power meter. The measured laser wavelength range is 11nm~19000nm, and its measured laser power range is 10mW to 50W . The measurement accuracy is 1mW.  The Power button is the ON/OFF switch. The zero button on the left is for reset to zero. Then turn on the laser, wait for the laser to enter a stable working state, and read the laser power data. After installing the power meter, adjust the detector position so that the laser is irradiated to the center of the detector. Our laser power meter has the characteristics of stable operation, accurate measurement, small size and long service life. Based on the calorimetric principle, it not only has the advantages of good optical uniformity, extremely insensitive to the influence of the laser polarization state and incident angle, etc., but also has a relatively high ability to resist laser damage.

 Our fiber lasers are also available in two package modes: benchtop and module type. The module type is controlled by software. The benchtop fiber laser is controlled by button. It can be customized software control, use RS232-USB data cable to connect computer software. These two package modes are also applicable to EDFA, YDFA, ASE/SLD broadband light source,... 1550±1nm 10W Nano-second Pulse Fiber Laser module type : Nanosecond pulse laser adopts unique circuit and optical optimization design, output laser pulse width, peak power and repetition frequency can be adjusted, working wavelength and power output are stable, single-mode fiber output, modular type is convenient for system integration, suitable for distributed Fiber optic sensing system. 976nm 9W Fiber Laser Benchtop  button control: High-power laser light source is based on high-performance semiconductor laser chip, 105/125μm fiber coupling output. The professionally designed constant current drive and temperature control ci

Ytterbium-doped fiber amplifier (YDFA) generates gain by pumping ytterbium-doped fiber with a semiconductor laser, and is used to amplify laser signals in the 1030~1100nm band. PM980 polarization-maintaining fiber output, the output power is continuously adjustable, and 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 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. It's a Ytterbium-Doped Fiber Amplifier. Its pigtail fiber type is PM980 Polarization-maintaining fiber. The default working wavelength is 1030nm~1070nm . The wavelength can be customized according to customer needs. It supports ACC Automatic Pump Current Control, APC Automatic Power Control two working modes. This YDF

 Today we are talking about 1030nm single-mode fiber coupled laser. The laser output power is adjustable from 100mW~1000mW, and the adjustment accuracy is 1mW. It can be adjusted by buttons. Customizable software control function, connect with computer via RS232-USB. Configured with single-mode fiber Hi1060, and can also customize polarization-maintaining fiber output.  1030nm is invisible light, we use infrared photosensitive film to observe the light spot. Let's check it now. This laser adopts all- fiber laser technology , professionally designed and driven temperature control circuit and control to ensure the safe operation of the laser and stable laser output power and spectrum. It is suitable as a seed laser for higher power laser systems, and can also be used for production testing of optical fiber devices. It can be provided in benchtop or modular packaging. Boot test. The power switch is on the back. Press the square button in the middle to enter the setting state. The lef

 The fiber ASE broadband light source is an incoherent light source, which is the spontaneous radiation generated by the semiconductor laser pumping erbium-doped silica fiber, and the spectral flattening technology is introduced to achieve a broadband flat spectrum. The wavelength of the light source covers the C-band, and the spectral flatness is better than 2dB. It is output through single-mode fiber or polarization-maintaining fiber, which is suitable for applications such as fiber sensing. This is a ASE broadband light source with single-mode fiber. The fiber plugging and unplugging can easily damage the interface. The fiber here is fixed and cannot pluggable. The power can be adjusted by the button, and the adjustment accuracy is 1mW. This is the broadband light source of C-Band, and the broadband light source of L-band can also be customized. The laser of C-Band is infrared light, which is invisible to the human eye. Here is the use of ir photosensitive film to observe the ligh