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http://hdl.handle.net/10397/94514
Title: | Tunable pulse advancement and delay by frequency-chirped stimulated Raman gain with optical nanofiber | Authors: | Qi, Y Jin, W Ho, HL |
Issue Date: | 15-Jan-2021 | Source: | Optics letters, 15 Jan. 2021, v. 46, no. 2, p. 178-181 | Abstract: | We demonstrate a novel method to optically tune the pulse advancement and delay based on stimulated Raman gain in hydrogen. With a frequency-chirped pump, the generated signal pulse is selectively amplified at the leading or trailing edge of the pump pulse, depending on whether the frequency difference between the pump and the signal beam is blue or red detuned from the Raman transition, which results in advancement or delay of the signal peak. Different from the method of slow/fast light, where advancement and delay are accompanied with power loss and gain, respectively, for a single resonance, both the advancement and delay are realized in the gain region for the method here. With a piece of 48-mm-long optical nanofiber in hydrogen, the time-shift for a signal peak ranging from 3.7 to −3.7 ns is achieved in a Raman-generated pulse with width of ∼12 ns. | Publisher: | Optical Society of America | Journal: | Optics letters | ISSN: | 0146-9592 | EISSN: | 1539-4794 | DOI: | 10.1364/OL.409127 | Rights: | ©2021 Optical Society of America © 2021 Optica Publishing Group. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper are prohibited. The following publication Yun Qi, Wei Jin, and Hoi Lut Ho, "Tunable pulse advancement and delay by frequency-chirped stimulated Raman gain with optical nanofiber," Opt. Lett. 46, 178-181 (2021) is available at https://doi.org/10.1364/OL.409127. |
Appears in Collections: | Journal/Magazine Article |
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Jin_Tunable_Pulse_Advancement.pdf | Pre-Published version | 968.11 kB | Adobe PDF | View/Open |
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