Utilizing a silicon-photonic micro-ring-resonator and multi-ring scheme for wavelength-switchable erbium fiber laser in single-longitudinal-mode

Abstract

In this paper, a stable and wavelength-switchable silicon-photonic erbium-doped fiber (EDF) triple-ring laser is proposed and demonstrated. In the experiment, the integration of a silicon-on-insulator (SOI)-based grating coupler and silicon-micro-ring-resonator (SMRR) are coupled and connected to the proposed EDF triple-ring laser for generating wavelength. Here, the output wavelength can be adjusted in a wavelength range of 1529.8 –1561.8 nm with a 2.0 nm tuning step according to the free spectrum range (FSR) of the SMRR. Moreover, the stability performance of the output power and wavelength are also discussed and analyzed.

Bidirectional Single Longitudinal Mode Er-Doped Fiber Ring Laser Using a Bandpass Filter and Cascaded Fiber Ring Filter

“…It is generally impossible to achieve single longitudinal mode output by relying solely on a single fiber ring filter. Usually, single longitudinal mode output is achieved through the vernier effect of two cascaded fiber ring filters [22], [23], [24], [25], [26], [27], [28], [29], [30], [31], [32], [33]. However, relying only on cascaded fiber ring filters to filter out a single longitudinal mode in an erbium-doped fiber laser, the length difference between the two fiber ring filters is slight.…”

Silicon-Micro-Ring Resonator-Based Erbium Fiber Laser With Single-Longitudinal-Mode Oscillation

“…Furthermore, according to the recent progress of silicon photonics, using the SiMRR device to build the wavelength-tunable SLM EDF laser source is very exciting and practical. In light of the mature silicon manufacturing processes [19], [20], the SiMRR has great potential as a cost-effective filter device with a high quality factor (Q-factor) to serve as a precise and controllable free spectral range (FSR) [21].…”

Stabilized single-longitudinal-mode erbium fibre laser employing silicon-micro-ring resonator and saturable absorber

“…Furthermore, the EDF lasers also have many useful applications, such as the optical fiber sensing, material processing, high-resolution spectroscopy, microwave photonic, imaging, and optical communication [3][4][5][6]. Moreover, to complete the wavelength tenability, several optical filters are applied in the laser cavity, such as using the tunable bandpass filter (TBF) [7], fiber Fabry-Perot tunable filter (FFP-TF) [8], fiber Bragg grating (FBG) [9], optical comb filter [10], and silicon-photonic micro-ring-resonator (SMRR) [11]. However, due to the longer length of fiber cavity in EDF-based laser scheme, it would produce the mode-hopping and the other side-mode oscillations.…”