3 ports optical circulator Manufacturers

1550nm Superluminescent Diodes SLED are optical sources with a rather wide optical bandwidth. In that they differ from both lasers, that have a very narrow spectrum, and white light sources, that exhibit a much larger spectral width. This characteristic mainly reflects itself in a low temporal coherence of the source (which is the limited capability of the emitted light wave to maintain the phase over time). SLED may however exhibit a high degree of spatial coherence, meaning that they can be efficiently coupled into single-mode optical fibers. Some applications take advantage of the low temporal coherence of SLED sources to achieve high spatial resolution in imaging techniques. The coherence length is a quantity frequently used to characterize the temporal coherence of the light source. It is related to the path difference between the two arms of an optical interferometer over which the light wave is still capable to generate an interference pattern.

The 1450/1550/1660nm 1x3 Raman Filter WDM for DTS Systems Module is manufactured by using thin-film filter technology, it used to separate and combine different signal wavelengths at 1450nm, 1550nm, and 1660nm (or 1650nm). This 1x3 Raman Filter WDM with low insertion loss and high isolation Characteristic. It's widely used in Raman DTS systems or other fiber test or measurement systems.

976nm 400mW PM FBG Stabilized pigtailed butterfly laser diode combined with fiber-optic FBG frequency lock to ensure stable spectral wavelength. The professionally designed drive circuit and TEC control ensure laser safe and stable operation,single mode or polarization-maintaining pigtail output. This laser can be used in scientific research and production testing. It is suitable as a pump laser source for fiber lasers or fiber amplifiers.

1610nm DFB Wavelength stabilized Butterfly Laser Diodes are distributed feedback cavity design semiconductor lasers in mounted in an industry standard 14-pin butterfly package. They have an integrated TE cooler and an integrated back facet monitor photodiode. They have a spectral width of approximately 2 MHz. Their single frequency beam profile and narrow linewidth makes them an excellent choice for spectroscopy applications as well as telecom applications. They are specified with output power up to 10mW. The butterfly package has a SM or PM fiber pigtail.

The Semiconductor Optical Amplifier (SOA) product series, is primarily used for optical signal amplification and can significantly increase the output optical power. The products feature high gain, low power consumption, and polarization maintenance, among other characteristics, and are fully processable with domestically controllable technology.

BoxOptronics Single-frequency Pulsed Erbium-doped Fiber Amplifier EDFA is a fiber amplifier dedicated to narrow linewidth single-frequency nanosecond pulses. The spectral linewidth of the input laser pulse can be as low as the KHz level. It can achieve high pulse energy output while effectively suppressing non-linear pulses. Linear effect, single mode or polarization maintaining fiber output. Can be used in distributed sensing, Doppler lidar and other applications.