Song J, Xu H, Wu H, Ye J, Xu J, Huang L, Leng J, Zhou P. All-fiberized transverse mode-switching method based on temperature control.
APPLIED OPTICS 2019;
58:3696-3702. [PMID:
31158180 DOI:
10.1364/ao.58.003696]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Accepted: 04/11/2019] [Indexed: 06/09/2023]
Abstract
In this paper, an all-fiberized transverse mode-switching method was proposed based on temperature control of few-mode (FM) fiber Bragg gratings (FBGs). Two types of fibers were selected to fabricate the FBG pair in order to match the reflection peaks of the desired mode. The temperature-dependence property of the FM FBGs has been utilized to tune the reflection spectra. Through temperature control, 20 W level output power was obtained when the output laser was switched between the LP11 mode and the LP01 mode in both an all-fiberized ytterbium-doped laser and a Raman laser, which is increased by ∼2 orders of magnitude compared with previous demonstrations (almost less than 100 mW).
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