Stable and uniform dual-wavelength erbium-doped fiber laser based on fiber Bragg gratings and photonic crystal fiber

Abstract

Based on the fiber Bragg gratings (FBGs) and high nonlinear photonic crystal fiber (HN-PCF), a novel dual-wavelength erbium-doped fiber (EDF) laser is proposed and demonstrated. The experimental results show that, owing to the contributions of two degenerate four-wave mixings in the HN-PCF, the proposed fiber laser is great stable and two output signals are uniform at room temperature. With adjustment of the attenuator, our fiber laser can selectively realize one wavelength lasing.

Two-Wavelength Lasers Based on Oversized Rib Polymer Waveguide Bragg Reflectors

“…다파장 레이저를 구현하기 위한 방법으로 어븀 첨가 광섬유와 브래그 격자를 이용한 방법 [3,8,9] 이 제안되었으나, 인접한 파장간에 나타나는 이득 경쟁 (gain competition)으로 인해 안정적인 레이저를 구현하기가 어려운 단점이 있다. 다파장 레이저를 구현하기 위해 제안된 또 다른 방법은 반도체 광증폭기와 arrayed waveguide grating 을 결합하여 다파장 레이저를 구현하는 방법 [1,2] , 파장 가변 레이저와 고정 파장의 DFB(distributed feedback laser)를 이 용하는 방법 [5] , DFB와 distributed Bragg reflector를 이용하는 방법 [6] 등이 …”

Dual-wavelength erbium-ytterbium co-doped fibre laser operating at 1064 and 1534 nm

“…Then the concentration of dopants in a fibre can be made relatively high so that reasonably high output powers can be achieved with short lengths of the gain media. From the practical viewpoint, allfibre dual-wavelength fibre laser sources have attracted considerable attention in the recent years because of their potential applications in microwave photonics, optical communications and fibre sensing systems [5][6][7][8][9][10].…”

“…distributed-feedback erbium-doped fibre lasers based on special fibre grating structures [7,8] and comb filters introduced into laser cavities [9,10]. Fibre Bragg gratings (FBGs) seem to be ideal wavelength-selective components for the fibre lasers, due to their advantages concerned with intrinsic fibre compatibility, ease of use, and low cost.…”

Multiple wavelength generation using a compacted hybrid Raman / Bi-EDF amplifier

“…These multiple wavelength lasers have been generated by various approaches such as immersion of EDF in liquid nitrogen and twin core EDF lasers [1], amplified spontaneous emission slicing [2], introducing four-wave mixing [3], and the usage of ultra-narrow bandpass filter as dual-phase-shift fiber gratings with ultra-narrow transmission bands [4].…”