InGaAs photodiode 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 915nm 20W Pump Laser Diode 105µm Fiber Coupled Laser Diode has been developed for pumping, medical or materials processing applications. This diode laser has been designed to delivery very high output power for the fiber laser market and for direct system manufacturers to with a more compact pump configuration. Various output powers are available. Custom wavelengths and configurations available upon request.

The 850nm Superluminescent Diodes SLD is a light source for ophthalmic and medical OCT application, fiber transmission systems, fiber optic gyros, fiber optic sensors,optical coherence tomography, optical measurements. The diode is packaged in 14-pin standard butterfly package with monitor photodiode and thermo-electric cooler (TEC). Module is pigtailed with single mode polarization maintaining fiber and connectorized by FC/APC connector.

High Power 1550nm DFB Fiber Coupled Butterfly Laser Diode is mainly used as the optical signal for high-capacity long-distance optical communication, as well as a wide range of new applications such as fiber sensing, 3D sensing, gas sensing, and disease diagnosis such as respiratory and vascular monitoring. In the field of gas sensing, it is used as the light source for gas sensors that detect methane gas leaks around factory pipes.

The 976nm 350Watt High Power Fiber Coupled Laser Diode is an industrial standard laser diode in many welding applications, brazing, cladding, repair welding, hardening and other surface treatments. Also a commercial product for fiber laser pumping.

1270nm to 1610nm or 1550nm Fiber Bragg Grating FBGs are a kind of diffraction grating formed by periodically modulating the refractive index of the core of the fiber through a certain method. It is a passive filter device. Grating fibers are widely used in the fields of optical fiber communication, optical fiber sensing and optical fiber signal processing because of their small size, low fusion loss, full compatibility with optical fibers and embedded intelligent materials, and their resonant wavelength is sensitive to the changes of temperature, strain, refractive index, concentration and other external environment.