Single-mode erbium fiber dual-ring laser with 60-nm workable wavelength tunability

Yang, Yun-Cheng; Yeh, Chien Hung; Tsai, Cheng‐Kun; Xie, Yue-Ru; Luo, Chien-Ming; Chang, Yu‐Jung; Chen, J. H.; Chow, Chi‐Wai

doi:10.1016/j.optlastec.2019.01.025

Cited by 12 publications

(5 citation statements)

References 20 publications

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“…Then, the presented self-injected RBS operation can apply in the EDF laser to compress the multiply MLM noises. Hence, to verify the SLM performance of the proposed EDF laser, a delayed self-homodyne scheme is exploited [23]. The optical setup is consisted of two 1×2 and 50:50 OCPs, a PC and a length of SMF respectively, as illustrated in figure 4.…”

Section: Experiments and Resultsmentioning

confidence: 99%

Utilizing self-injection Rayleigh backscattering feedback for channel-selected erbium laser with single-longitudinal-mode output

et al. 2020

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To achieve the target of single-longitudinal-mode (SLM) operation in erbium-doped fiber (EDF) laser, a self-injected Rayleigh backscattering (RBS) feedback schematic is proposed and demonstrated experimentally. Based on the proposed RBS effect, the multi-longitudinal-mode (MLM) noises of the RBS EDF laser can be suppressed fully. Here, the output powers of −7.5 to −5.1 dBm are detected over the tuning bandwidth of 1523.0 to 1563.0 nm. Moreover, the optical signal to noise ratios (OSNRs) of 30.9 and 33.1 dB is also attained. In this study, the SLM oscillation and output instability of the EDF laser are also analyzed and discussed.

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Section: Experiments and Resultsmentioning

confidence: 99%

Utilizing self-injection Rayleigh backscattering feedback for channel-selected erbium laser with single-longitudinal-mode output

et al. 2020

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“…We obtain that all the observed linewidths of seven wavelengths are around 2 kHz. Moreover, in our previous demonstration [16], the measured linewidth range of EDF laser was from 15 to 22 kHz by exploiting dual-ring cavity design. As a result, based on the proposed self-injected RB feedback scheme, the RB EDF laser not only can achieve 49 nm wavelength tunability, but also can narrow the 3-dB linewidth to 2 kHz.…”

Section: Wavelength (Nm)mentioning

confidence: 99%

“…Thus, the previous approaches have been proposed to suppress the MLM spikes for stable SLM operation, including utilization of the saturable absorber (SA) based filter, phase-shifted fiber Bragg grating (FBG), ultra-narrow optical filter, compound-fiber-ring method, optical injection technique and Rayleigh backscattering (RB) characteristic, respectively [8][9][10][11][12][13]. Furthermore, to obtain the tunability in the EDF lasers, utilization of tunable bandpass filter (TBF), narrow passband filter, variable FBG, silicon-microringresonator (SMR) and Fabry-Perot tunable fiber (FP-TF) have been operated in the fiber ring for wavelength-selection [14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Feedback-Injected Erbium Fiber Laser With Selectable Tunability and Constant Single-Longitudinal-Mode Characteristic

et al. 2020

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In this investigation, a wavelength-selected single-longitudinal-mode (SLM) erbium-doped fiber (EDF) ring laser utilizing C-band EDF based gain medium over a tuning bandwidth of 1524.0 to 1573.0 nm is demonstrated experimentally. A self-injection Rayleigh backscattering (RB) is designed in the EDF ring laser configuration to suppress the multi-longitudinal-mode (MLM) oscillation and narrow the obtained linewidth. Here, the physical output features of the proposed self-injected RB EDF laser are also studied and discussed, such as the optical signal to noise ratio (OSNR), output power, and laser linewidth, respectively. Therefore, the demonstrated EDF laser not only can reach SLM output, but also can produce a flat output spectrum of 1524.0 to 1554.0 nm with 0.2 dB power variation. Moreover, the measured fluctuation of each wavelength can be kept at 0.05 nm based on the presented self-injected RB EDF laser, while the uncertainty issue is also considered.

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“…Unfortunately, due to the homogeneous broadening, gain completion and mode-hopping of EDF, EDF lasers have usually led to unstable multilongitudinal-mode (MLM) initiation [7]. Thus, to overcome and suppress the challenges of MLM noise, the approaches of utilizing the variable fiber Bragg grating Fabry-Perot etalon [4], a multiple-ring cavity [8,9], EDF based saturable absorber (SA) [10,11], Sagnac-ring design [12] and tunable reflection interferometer [13] have been reported and studied.…”

Section: Introductionmentioning

confidence: 99%

Utilizing C-band erbium fiber and saturable absorber for broadband and continuous wavelength tunability laser with single-mode oscillation

et al. 2020

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In the paper, we report and exhibit a C-band erbium-doped fiber (EDF) based gain medium laser together with a 5 m unpumped EDF saturable absorber (SA) to attain broadly wavelength-selectable range and single-longitudinal-mode operation. Here, the whole tunability range of 1521.0 to 1601.0 nm (C plus L bands) can be accomplished by the designed EDF laser scheme. The output power and optical signal-to-noise ratio of the EDF laser are detected between −10.9 and 2.3 dBm and 33.1 and 45.1 dB/0.06 nm, respectively. In addition, the achievable SLM operation range runs from 1521.0 to 1581.0 nm due to the absorption limit of the EDF SA. The detected output stability and Lorentzian linewidth are also experimentally considered and significantly discussed.

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Single-mode erbium fiber dual-ring laser with 60-nm workable wavelength tunability

Cited by 12 publications

References 20 publications

Utilizing self-injection Rayleigh backscattering feedback for channel-selected erbium laser with single-longitudinal-mode output

Utilizing self-injection Rayleigh backscattering feedback for channel-selected erbium laser with single-longitudinal-mode output

Feedback-Injected Erbium Fiber Laser With Selectable Tunability and Constant Single-Longitudinal-Mode Characteristic

Utilizing C-band erbium fiber and saturable absorber for broadband and continuous wavelength tunability laser with single-mode oscillation

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