Passive Athermalization Of Multimode Interference Devices For Wavelength-Locking Applications

Abstract

In this paper we demonstrate the passive, material-based athermalization of all-fiber architectures by cascading multimode interference (MMI) devices. In-line thermal compensation is achieved by including a liquid-core multimode section of variable length that allows ensuring temperature-independent operation while preserving the inherent filter-like spectral response of the MMI devices. The design of the temperature compensation unit is straightforward and its fabrication is simple. The applicability of our approach is experimentally verified by fabricating a wavelength-locked MMI laser with sensitivity of only -0.1 pm/°C, which is at least one order of magnitude lower than that achieved with other fiber optics devices.

Publication Date

1-1-2017

Publication Title

Optics Express

Volume

25

Issue

5

Number of Pages

4800-4809

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1364/OE.25.004800

Socpus ID

85014570739 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/85014570739

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