An All-Solid Athermal Multimode-Interference Cascaded Device for Wavelength-Locking

作者：Ruiz Perez V I; May Arrioja D A; Guzman Sepulveda J R

来源：IEEE Photonics Technology Letters, 2018, 30(8): 669-672.

DOI：10.1109/LPT.2018.2810502

• Fiber optics and optical communications
• Talbot and self-imaging effects
• fiber lasers
• laser stabilization

We demonstrate a passive, material-based ather-malization of all-fiber architectures consisting of cascaded multimode-interference (MMI) devices. Specifically, the athermal MMI filter used for in-line thermo-optic compensation consists of a no-core multimode fiber, which is spliced between two single-mode fibers, and is partly covered with a polymer coating. The design of the temperature-compensation unit is straightforward and its fabrication is simple. The applicability of our approach is experimentally verified by fabricating wavelength-locked MMI lasers with a temperature sensitivity lower than 1.0 pm/degrees C, which is several times smaller than that achieved with other fiber-optic devices and is comparable to that targeted in silicon photonics.

• 出版日期2018-4-15