{"id":707,"date":"2024-07-30T11:29:00","date_gmt":"2024-07-30T03:29:00","guid":{"rendered":"https:\/\/frontbasic.sslab.org.cn\/lin-group\/?post_type=paper&#038;p=707"},"modified":"2024-08-30T11:34:32","modified_gmt":"2024-08-30T03:34:32","slug":"anisotropic-van-der-waals-tellurene-based-multifunctional-polarization-sensitive-in-line-optical-device","status":"publish","type":"paper","link":"https:\/\/frontbasic.sslab.org.cn\/lin-group\/paper\/anisotropic-van-der-waals-tellurene-based-multifunctional-polarization-sensitive-in-line-optical-device\/","title":{"rendered":"Anisotropic van der Waals Tellurene-Based Multifunctional, Polarization-Sensitive, In-Line Optical Device"},"content":{"rendered":"\n<p><a href=\"https:\/\/pubs.acs.org\/doi\/10.1021\/acsnano.4c03973\">https:\/\/pubs.acs.org\/doi\/10.1021\/acsnano.4c03973<\/a><\/p>\n\n\n\n<p>Polarization plays a paramount role in scaling the optical network capacity. Anisotropic two-dimensional (2D) materials offer opportunities to exploit optical polarization-sensitive responses in various photonic and optoelectronic applications. However, the exploration of optical anisotropy in fiber in-line devices, critical for ultrafast pulse generation and modulation, remains limited. In this study, we present a fiber-integrated device based on a single-crystalline tellurene nanosheet. Benefiting from the chiral-chain crystal lattice and distinct optical dichroism of tellurene, multifunctional optical devices possessing diverse excellent properties can be achieved. By inserting the in-line device into a 1.5 \u03bcm fiber laser cavity, we generated both linearly polarized and dual-wavelength mode-locking pulses with a degree of polarization of 98% and exceptional long-term stability. Through a twisted configuration of two tellurene nanosheets, we realized an all-optical switching operation with a fast response. The multifunctional device also serves as a broadband photodetector. Notably, bipolar polarization encoding communication at 1550 nm can be achieved without any external voltage. The device\u2019s multifunctionality and stability in ambient environments established a promising prototype for integrating polarization as an additional physical dimension in fiber optical networks, encompassing diverse applications in light generation, modulation, and detection.<\/p>\n","protected":false},"featured_media":712,"template":"","acf":[],"_links":{"self":[{"href":"https:\/\/frontbasic.sslab.org.cn\/lin-group\/wp-json\/wp\/v2\/paper\/707"}],"collection":[{"href":"https:\/\/frontbasic.sslab.org.cn\/lin-group\/wp-json\/wp\/v2\/paper"}],"about":[{"href":"https:\/\/frontbasic.sslab.org.cn\/lin-group\/wp-json\/wp\/v2\/types\/paper"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/frontbasic.sslab.org.cn\/lin-group\/wp-json\/wp\/v2\/media\/712"}],"wp:attachment":[{"href":"https:\/\/frontbasic.sslab.org.cn\/lin-group\/wp-json\/wp\/v2\/media?parent=707"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}