NakuLaser Blog

 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...

 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 : A double-pass bi-directional(DP_BD) pump configuration is proposed for the high efficiency L-band ASE. A L-band ASE of 13.7 dBm output power and 38nm bandwidth of 1566~1604 nm where the ASE power intensity is higher than -16 dBm is obtained by selecting 1480 nm LD and heavily doped erbium fiber with optimized length simultaneously. The DP-BD ASE source has a pump conversion efficiency of 23.4% which is larger than that by double-pass forward (DPF) configuration of 11.8%. Introduction Broadband light source  based on erbium-doped fiber amplifying spontaneous emission (ASE) is a new type of light source with erbium-doped fiber amplifier ( EDFA ). Since the first commercial use of EDFA for all-optical amplification in 1993 has led to the rapid development of optical communication, broadband light sources based on erbium-doped fiber ASE have the same output spectrum as the 1.55" m-band of optical communication, and have The output spectrum is stable, the environment ...

Abstract: A two-stage broadband erbium-doped fiber based amplified  spontaneous emission (ASE) source is presented. By using double pass configuration and recycling backward C band ASE, the pump power for L_band ASE generation is much economized. With achirped fiber Bragg grating (CFBG ) as spectrum equalizer, a flat spectral bandwidth of 76nm is realized. Introduction Incoherent amplified spontaneouse mission (ASE) source with low spectral ripple sare widely applied in various are as such as optical device characterization, optical sensor systems, spectrum sliced dense wavelength division multiplexing (DWDM) systems, fiber-optical gyroscopes and low-coherence tomography. Erbium-doped fiber(EDF) based ASE source sare optimal choice to realize simuha- neous C-band and L-band operation. Nevertheless, since L-band is far away from the gain peak (1530nm ) of sillca-base EDF, the gain coefficient in L-band is much lower than thatin C-band (approxim ate-1vbyafactorof1O). Thus high...