By Haiyin Sun
This ebook bargains the reader a realistic consultant to the keep an eye on and characterization of laser diode beams. Laser diodes are the main prevalent lasers, accounting for fifty% of the worldwide laser industry. right dealing with of laser diode beams is the foremost to the profitable use of laser diodes, and this calls for an in-depth figuring out in their specified properties.
Following a quick creation to the operating rules of laser diodes, the ebook describes the fundamentals of laser diode beams and beam propagation, together with Zemax modeling of a Gaussian beam propagating via a lens. The center of the publication is worried with laser diode beam manipulations: collimating and focusing, circularization and astigmatism correction, coupling right into a unmarried mode optical fiber, diffractive optics and beam shaping, and manipulation of multi transverse mode beams. the ultimate bankruptcy of the ebook covers beam characterization tools, describing the dimension of spatial and spectral houses, together with wavelength and linewidth dimension suggestions.
The publication is a considerably revised and multiplied model of the identify Laser Diode Beam fundamentals, Manipulations and Characterizations by way of an analogous writer. New themes brought during this quantity comprise: laser diode kinds and dealing rules, non-paraxial Gaussian beam, Zemax modeling, numerical research of a laser diode beam, spectral estate characterization equipment, and gear and effort characterization options. The e-book methods the topic in a pragmatic method with mathematical content material stored to the minimal point required, making the publication a handy reference for laser diode clients.
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Additional resources for A Practical Guide to Handling Laser Diode Beams
10) reduces to Eq. 8), which means such a laser beam can be treated as geometric rays emitted by a point source. For zR/f → ∞, Eq. 10) leads to i = f, the laser beam is focused at the focal point of the lens. 10) has some interesting characteristics that are different from those of Eq. 8). One characteristics is the maximum and minimum focusing distance that can be found by differentiating Eq. 10) and assuming Di/Do = 0, we obtain o ¼ f Æ zR ð2:11Þ Plugging o = f + zR into Eq. 10), we can ﬁnd the maximum focusing distance to be imax ¼ f 2zR f þ 2zR f 1 ð2:12Þ Plugging o = f − zR into Eq.
Any tiny defects or pollution on the facet can cause power absorption, heating, and oxidizing the facet, and eventually damage the facet. Therefore, do not try to use conventional method to clean the facet, this may scratch the facet or pollute the facet even more. When directly handling laser diodes, electrostatic discharge is the number one cause of damage, followed by accidental disconnection of power, and then overheating. When handling laser diode modules, the main cause of damage is overdriven.
Below is a list of brand name laser diode manufacturers: Applied Optronics Coherent Dilas Diodenlaser Frankfurt Laser Company Hamamatsu Hitachi JDS Uniphase Jenoptik Mitsubishi Opnext Opto Power OSRAM Rohm Lasertechnik Sony Toshiba It is noted that the list is subjective and likely incomplete. There are likely many other good quality laser diode manufacturers. Nowadays, low-power laser diodes are produced in millions, the unit price can be as low as a few dollars. Laser diode manufacturers usually no longer retail sell their laser diodes.
A Practical Guide to Handling Laser Diode Beams by Haiyin Sun