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Semi-conductor lasers (Bottom to Top: 660 nm, 635 nm, 532 nm, 520 nm, 445 nm, 405 nm) A laser diode is electrically a PIN diode.The active region of the laser diode is in the intrinsic (I) region, and the carriers (electrons and holes) are pumped into that region from the N and P regions respectively.
Typically tuned in the range of 700 to 820 nm Flashlamp, laser diode, mercury arc (for CW mode operation) Dermatological uses, LIDAR, laser machining. Erbium–ytterbium and Erbium-doped glass lasers: 1.53–1.56 μm Flashlamp, laser diode Erbium-ytterbium and erbium-doped glass lasers are made in rod, plate/chip, and optical fiber form.
A superluminescent diode (SLED or SLD) is an edge-emitting semiconductor light source based on superluminescence. It combines the high power and brightness of laser diodes with the low coherence of conventional light-emitting diodes. Its emission optical bandwidth, also described as full-width at half maximum, can range from 5 up to 750 nm. [1]
The range of applications of tunable lasers is extremely wide. When coupled to the right filter, a tunable source can be tuned over a few hundreds of nanometers [12] [13] [14] with a spectral resolution that can go from 4 nm to 0.3 nm, depending on the wavelength range.
In continuous-wave laser applications, however, BiBO may exhibit instabilities which degrade its performance. [4] Yellow DPSSLs use an even more complicated process: An 808 nm pump diode is used to generate 1,064 nm and 1,342 nm light, which are summed in parallel to become 593.5 nm. Due to their complexity, most yellow DPSSLs are only around 1 ...
As a result, the laser operates on a single spatial and longitudinal mode. The laser emits from the exit facet opposite the DBR end. The DBR is continuously tunable over approximately a 2 nm range by changing current or temperature. The temperature coefficient is approximately 0.07 nm/K, and the current coefficient is approximately 0.003 nm/mA. [2]