The effect of ASE reinjection configuration through FBGs on the gain and noise figure performance of L-Band EDFA

Durak, Fırat Ertaç; Altuncu, Ahmet

doi:10.1016/j.optcom.2016.11.009

Cited by 29 publications

(6 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In order to verify that the system will exhibit a linear response for EDF's with different doping concentrations, lengths and pumping levels, we performed simulations based on the numerical model that is described in the Appendix A herein. The model is based on gain saturation models for EDFs [15][16][17][18][19] including the pair-induced quenching phenomenon for high doping concentration [20][21][22] and fitting of unknown parameters with experimental results. It is noted that only high-doping EDFs have been used, to keep their length short and at the same time provide sufficient small-signal gain.…”

Section: Principle Of Operationmentioning

confidence: 99%

Evaluation of an Erbium-Doped Fiber Ring Laser, as an Edge Filtering Device for FBG Sensor Interrogation

Stathopoulos,

Lazakis,

Simos

et al. 2024

Preprint

View full text Add to dashboard Cite

An easy to implement and cost-effective Fiber Bragg Grating (FBG) sensor interrogation technique based on a ring Erbium-Doped Fiber Laser (EDFL) topology is proposed and experimentally assessed. The FBG sensor is part of the EDFL cavity and must have a central wavelength located within the linear region of the EDF’s amplified spontaneous emission (ASE) spectrum which occurs between 1530 and 1540nm. In this manner, the wavelength-encoded response of the FBG under strain is converted to a linear variation of the laser output power, removing the need for spectrum analysis as well as any limitations from the use of external edge-filtering components. In addition, the laser linewidth is significantly reduced with respect to the FBG bandwidth thus improving the resolution of the system, whereas its sensitivity can be controlled through the pumping power. The performance of the system has been characterized by modeling and experiments for EDF's with different lengths, doping concentrations and pumping power levels. The influence of mode-hopping in the laser cavity on the resolution and accuracy of the system has also been investigated.

show abstract

Section: Principle Of Operationmentioning

confidence: 99%

Evaluation of an Erbium-Doped Fiber Ring Laser, as an Edge Filtering Device for FBG Sensor Interrogation

Stathopoulos,

Lazakis,

Simos

et al. 2024

Preprint

View full text Add to dashboard Cite

show abstract

“…A short length of unpumped EDF within a circulator-based loop mirror was employed to attenuate part of the ASE, helping to reduce the NF for C-band [14]. The configurations of fiber Bragg grating (FBG) [15]- [18] and gain flatten filter (GFF) [19] in the EDFA system usually contribute to the improvement of NF. However, the noise characteristics optimization methods mentioned above are mainly based on adjusting the configuration of EDFA, which usually lose a certain gain efficiency for guaranteeing the low NF.…”

Section: Introductionmentioning

confidence: 99%

Ultra-Low Noise Figure in Optical Fiber Amplifier by Tailoring the Mode Field Profile of Erbium-Doped Fiber

Qiu

Zhi

et al. 2022

IEEE Photonics J.

View full text Add to dashboard Cite

“…[3][4][5][6][7] In the last few years, therefore, further research has been focused on developing broadband fiber optical amplifiers with high gain efficiency, high output power, gain clamping and gain flattening capabilities to cope with the increasing capacity demand experienced in optically amplified broadband optical communication systems and distribution networks. 8,9 Apart from conventional band erbium-doped fiber amplifiers (C-EDFA or shortly EDFA), one of the new research area of broadband optical amplifiers is to develop high performance erbium-doped fiber amplifiers operating in L band (L-EDFA). When forming an L-EDFA, a longer length, typically longer than 20 m, strongly pumped erbium-doped fiber (EDF) is required.…”

Section: Introductionmentioning

confidence: 99%

Gain‐clamping in L‐band zirconium–erbium co‐doped fiber amplifier with FBG based lasing control

Sadik

Durak

Paul

et al. 2021

Micro & Optical Tech Letters

Self Cite

View full text Add to dashboard Cite

In this study, gain clamping performance in an L-band zirconium-erbium co-doped fiber amplifier (Zr-EDFA) with a very short length of heavily doped fiber and FBG based lasing control structure was presented. A simple gain clamping design based on a symmetrical narrow band C-band fiber Bragg grating (FBG) pair addition was used in the L-band Zr-EDFA with bidirectionally pumping scheme. An L-band gain of higher than 25 dB was obtained with a maximum noise figure (NF) of 5 dB in the conventional Zr-EDFA design which was higher than the previous results obtained with forward pumping scheme. When a couple of narrow band FBGs at Bragg reflection wavelength of 1542 nm are used as the lasing mechanism for gain clamping in L-band operation, small signal gain of Zr-EDFA decreases, but on the other hand, the gain is clamped at almost 15.5 dB with a flattened gain spectrum along a dynamic range of 25 dB for the signal input powers between À30 and À5 dBm with the expense of 1.5 dB NF penalty.

show abstract

The effect of ASE reinjection configuration through FBGs on the gain and noise figure performance of L-Band EDFA

Cited by 29 publications

References 14 publications

Evaluation of an Erbium-Doped Fiber Ring Laser, as an Edge Filtering Device for FBG Sensor Interrogation

Evaluation of an Erbium-Doped Fiber Ring Laser, as an Edge Filtering Device for FBG Sensor Interrogation

Ultra-Low Noise Figure in Optical Fiber Amplifier by Tailoring the Mode Field Profile of Erbium-Doped Fiber

Gain‐clamping in L‐band zirconium–erbium co‐doped fiber amplifier with FBG based lasing control

Contact Info

Product

Resources

About