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.
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The 10mW 20mW LAN WDM DFB Laser Diode consists of four wavelengths: 1273.55nm, 1277.89nm, 1282.26nm, 1286.66nm, 1291.10nm, 1295.56nm, 1300.05nm, 1304.58nm, 1309.14nm. Wavelength is temperature stabilized. The laser diodes are fabricated in a hermetic sealed 14-pin butterfly package, which contain TEC, thermistor, monitor PD and optical isolator. We also have full customer selection of output powers, package types and SM fibers, PM fibers and other special fibers. This module complies described in Telcordia GR-468-CORE requirement and in compliance with RoHS directives.
The NIR 830 Superluminescent Diodes SLD that operates in a true inherent superluminescent mode. This superluminescent property generates broader band at higher drive currents in contrast to other conventional SLED which are ASE-based, here high drive tends to give narrower band. Its low coherence reduces Rayleigh backscattering noise. Coupled with high power and large spectral width, it offsets photoreceiver noise and improves spatial resolution (in OCT) and measurand sensitivity (in sensors). The SLED is available in 14-pin butterfly package. It is compliance with the requirements of Bellcore Document GR-468-CORE.
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The 1550nm 10mW 10G DFB Electro-absorption Modulator Laser EAM EML laser diode integrated with DFB laser diode for 10G bit/s optical transmission, which are fabricated in a hermetically sealed butterfly package. Which built-in modulator, TEC, thermistor, monitor photodiode, optical isolator to secure high quality laser performance. We also have full customer selection of output powers, package types and output fibers of SM fibers. This module complies described in Telcordia GR-468-CORE requirement.
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