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Multichip Red Laser Modules

Photonics Spectra
Sep 2011
Modulight Inc.Request Info
For industrial, display and medical applications, Modulight Inc. has added multichip red laser modules to its family of FiberLight products. They fill the gap between the butterfly packaged single emitters and fiber-coupled laser arrays already represented in the line. The modules can host up to four laser diodes coupled to a single 200-μm core fiber with a numerical aperture of 0.22 and terminated with a standard SMA-905 connector. A typical configuration includes a thermistor and a thermoelectrically cooled element for temperature control, and a photodiode for power monitoring. They are available in three- and four-chip versions, at wavelengths of 635, 650, 670 and 680 nm. Power levels range from 1 to 3 W, and other wavelengths and power levels are available upon request.


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Hardware installed on fiber cable ends to provide cable attachment to a transmitter, receiver or other cable. Usually a device that can be connected and disconnected repeatedly.  
A solid-state semiconducting structure (basically one of the bolometers) that changes electrical resistance with temperature. Materially, some kind of ceramic composition is used. A thermistor has much higher electrical resistance than metallic bolometers and hence requires much higher voltages to become useful.
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