NakuLaser Blog

 This time we are talking about the miniature ASE bandwidth light source . Its size is 50*50*15mm. The output power 10mW~50mW can be customized. After turning on the laser, the green indicator light will light up. And the ASE starts working, with invisible light output in the 1528~1563nm band. The light source outputs a flat spectrum covering the C-band and has moderate output power. At the same time, due to the unique miniaturized design and miniature package, it is the smallest ASE broadband light source at present, which is very suitable for applications in narrow space conditions. Test data report of the small C-Band 20mW ASE. Spectrogram and power stability of actual tests.

 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 ...

 This Micro ASE light source is CivilLaser newest product for 2022 and one of the smallest size ASEs on the market. It is smaller than the cell phones we use in our daily lives. The size of the ASE module is 50*50*15 mm. The flatness is ≤2dB. It powered by a DC 5V power adapter. The ASE module starts working as soon as power is applied. The test report and spectrogram of the ASE light source. The shock-proof packaging we ship.

Gain flattened fiber ASE broadband light source is based on ordinary broadband light source and added the gain flattening technologies, nd optimize the structure of the light source, the output spectral flatness of <2dB, output power and high. Suitable for optical fiber sensing applications. C-band ASE Light Source L-band ASE Light Source C+L band ASE Light Source 1030~1080 ASE Light Source

Abstract: In this paper, we utilized optimized C-band and L-band amplifiers to constitute a broadband CA-L erbium-doped amplifier with a parallel structure. This amplifier has a simple configuration, high-flattened gain and low noise. Meanwhile, we have realized an amplification bandwidth of over 70 nm(1 524—1 602 nm)without any broadband gain flattening component. The C-band average gain is over 30 dB and L-band gain variation is less than 2 dB. 1.  Introduction In order to meet the growing demand for communication capacity, it is a general trend to extend the dense wavelength division multiplexing system (DWDM) from the traditional c-band (1 525 to 1 5 6 5 nm) to the L-band (1 570, 1 610 nm). . The development of C + L band ultra-wideband  erbium-doped fiber amplifiers not only doubles the bandwidth of communication, but also increases the dispersion of the system compared to other methods of increasing the transmission capacity of a single channel or reducing the chann...

Abstract: This paper introduces a C-band single-pass light source structure. In the experiment, a 980nm  laser diode is used as the pumping source of the light source. The maximum output power of the pigtail of the pumping source can reach 200mw, and the output center wavelength is 979.04nm. The threshold current is 27.8 mA and the maximum pump current is 450 mA. The output power of the 980 nm laser diode pigtail increases with the increase of the laser diode current, and changes substantially linearly. 1 Introduction At present, fiber amplifiers are commonly used, and the active materials in the fibers are mainly rare earth elements such as cerium particles and cerium particles. A rare earth doped fiber amplifier can achieve a specific range of optical signal amplification. For example, erbium-doped fiber can achieve a gain of 30 nm wide around 1550 nm; erbium-doped fiber can achieve a gain bandwidth of 20-30 nm around 1310 nm. However, due to the fixed electronic structure...