a-BBO Crystal - An Overview
a-BBO Crystal - An Overview
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The calculation above assumes a uniform beam intensity profile. You need to now look at hotspots from the beam or other non-uniform depth profiles and around compute a greatest electricity density.
Beta Barium Borate (BBO) crystals are already a topic of fascination in the sphere of optics and photonics because of their exclusive Homes. In this post, we goal to answer 10 popular questions on BBO crystals, furnishing a comprehensive idea of this interesting content.
Hello, thanks for calling Thorlabs. The wavelength ranges on the antireflective coatings on these β-BBO crystals align Together with the respective wavelength bands that these crystals are optimized for. Requests for customizations can be created by achieving out to us at techsupport@thorlabs.com
Even so, to totally use the prospective of BBO crystals, it is essential to be familiar with their Qualities and the way to cope with and retail store them properly. These crystals have to have careful handling to prevent harm to their surfaces and should be saved in a very dry, amazing area to keep up their optical performance.
Any contamination can degrade the optical functionality from the crystal and perhaps induce problems below large laser electricity. When storing BBO crystals, they ought to be put in a protecting situation to forestall Bodily damage and dirt accumulation.
As the 2nd harmonic mild propagates, its Electrical power flows in a different way than that of the fundamental light-weight.
While the test success are only agent of one coating run, Thorlabs specifies problems threshold values that account for coating variances.
As illustrated in the next desk, the shorter the crystal, the wider the reference pulse spectrum. read more The table under assumes a basic Middle wavelength while in the near-IR.
Pumped via the fourth harmonic of the Nd:YAG laser (at 266nm), a tunable OPO with sign wavelength array between 422nm and 477nm has been observed by angle-tuning a sort I BBO crystal. Pumped by a 1mJ, 80fs Dye laser at 615nm, the OPA with two BBO crystals yields a lot more than 50µJ (highest 130µJ),
It’s like using just one Notice and splitting it into two harmonious tones. This method might be vital in a lot of State-of-the-art optical experiments and systems.
Every single facet of BBO, from its atomic structure to its wide application spectrum, underscores its pivotal part in modern-day science and technology.
When evaluating an LIDT specified for a pulsed laser in your laser, it is important to understand the next:
Even so, the nonlinear optical properties of a-BBO crystal is vanished a result of the centric symmetry with its crystal structure. It's not necessarily encouraged to make use of for NLO processes.
Era of deep ultraviolet radiation at 210 nm by Style-I 3rd harmonic era is obtained inside of a pair of BBO crystals with conversion effectiveness as large as 36%.