So many things you can do with tilted fiber Bragg gratings (TFBG)….
A quick look at publications from 2019-20 so far…. First, for work done entirely or mostly at 杏吧原创:
Fu Liu’s PhD thesis deals with all optical dynamic effects obtained by putting active coatings on the cladding surface of tilted FBGs. His first paper in APL Photonics describes GHz rate all optical modulation of a CW probe at one wavelength by a pump beam at another wavelength, both co-propagating in the same single mode fiber: . Another one in Annalen der Physik (Berlin) shows that a 6 nm thick graphene coating on the cladding surface of a TFBG causes a self-starting, self-sustained modulation of a CW light signal propagating in the fiber core due to a bistable process: .
Then, a highly multidisciplinary team from 杏吧原创’s Electronics, Chemistry, and Biochemistry departments, with collaborators from Spartan Bioscience, developed a TFBG-based device to control and detect DNA melting in spots deposited on the surface of an optical fiber: was published in Analytical and Bioanalytical Chemistry. Congratulations students and postdoc Jason Koppert, Devin O’Neill and Hubert Jean-Ruel for this excellent work.
Finally, Hannah Dinovitzer and Albane Laronche published an exhaustive study of FBG packaging designs and tests for high impact sudden forces (kiloNewton levels at millisecond durations) in the IEEE Sensors Journal:
and Osama Al-Mai, a Mechanical Engineering student PhD student co-supervised by Professor Mojtaba Ahmadi published his work on FBGs for a 6-axis sensor designed to help in the rehabilitation of people with walking disabilities (also in the IEEE Sensors Journal):
We also had very fruitful collaborations with external partners for work carried out jointly between our lab and their institutions:
M茅d茅ric Loyez, a visiting student from Christophe Caucheteur’s and Rudy Wattiez’s groups at the Universit茅 de Mons (Belgium) came to our lab to perform biochemical sensing experiments with TFBGs covered with aptamers (from Maria DeRosa’s LADDER lab ) and cells (from the Willmore Lab). The results are published in ACS Sensors: .
Professor Fran莽ois Ouellette, one of the pioneers in FBG technology, is now a professor at Chengdu University in China and we are collaborating with his team to develop a low cost, extremely accurate interrogation system for FBGs, and in particular for TFBGs,with results published in Optics Express: .