Stable SOA-based multi-wavelength fiber ring laser using Sagnac loop mirror incorporating a high-birefringence photonic crystal fiber

Im, Joo Eun; Kim, B. K.; Chung, Youngjoo

doi:10.1134/s1054660x10190084

Cited by 23 publications

(9 citation statements)

References 19 publications

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“…However, the FBG fabrication needs expensive equipments including the phase masks and UV laser [9]. Correspondingly, the comb filters, such as the dual-pass Mach-Zehnder interference filter [10][11][12], high-birefringence fiber-based Sagnac loop filters [13][14][15], and the twin-core fiber filter [16,17], are also introduced into ring cavity fiber laser. These comb filters produce a continuous comb of channels with uniform channel spacing and nearly the same transmissivity.…”

Section: Introductionmentioning

confidence: 99%

A dual-pass Mach–Zehnder interferometer filter using a TCF loop mirror for double-wavelength fiber lasers

Zou

Lou

et al. 2013

Appl. Phys. B

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A dual-pass Mach-Zehnder interferometer filter using a section of twin-core fiber (TCF) loop mirror is proposed. The filter is theoretically and experimentally studied for various interferometer arm difference when TCF length is constant. Theoretical results are validated by the experimental demonstration and in good agreement with the experimental results. And then, by using the filter in a ring fiber laser, a stable and switchable dual-wavelength lasing is obtained experimentally. The 3-dB bandwidth and the SMSR of the output laser are 0.015 nm and higher than 62.4 dB, respectively. The peak power fluctuation and wavelength shift are also monitored to be less than 0.04 dB and 0.02 nm over an hour at room temperature. Furthermore, the output laser can be switched between single and dual wavelength by carefully adjusting the PCs. The experimental results show that the filter can suppress mode competition effectively, improve the SMSR availably, and enhance the stability of the output lasing.

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Section: Introductionmentioning

confidence: 99%

A dual-pass Mach–Zehnder interferometer filter using a TCF loop mirror for double-wavelength fiber lasers

Zou

Lou

et al. 2013

Appl. Phys. B

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“…In order to implement multiwave length fiber lasers, various wavelength selective comb filters for defining the lasing wavelength have been 1 The article is published in the original. demonstrated, which include multiple fiber Bragg gratings (FBGs) [21], Mach-Zehnder interferome ters [22,23], Sagnac loop reflectors [24][25][26][27], sampled FBG [28], Fabry-Perot etalon filter [29], chirped moiré FBG [30], polarization maintaining FBG [31], few mode FBG [32], and cascaded long period fiber gratings (LPGs) [33]. Although, many of previously reported wavelength selective filters provide tunability and inherent compatibility with fiber systems, their lasing wavelength spacing is limited to the fixed single wavelength interval.…”

Section: Introductionmentioning

confidence: 99%

Multiwavelength erbium-doped fiber laser using twin-core photonic crystal fiber

Kim

Chung

2012

Laser Phys.

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We propose a novel multiwavelength erbium doped fiber laser incorporating a twin core photonic crystal fiber (TC PCF) based Mach-Zehnder interferometer (MZI). TC PCF based Mach-Zehnder inter ferometer acts as a wavelength selective comb filter in the laser cavity and shows polarization dependent spec tral response. The obtained channeled spectrum can be switched between two operation modes with two dif ferent multiwavelength intervals. The lasing wavelength spacing could be switched by adjusting internal polar ization controllers in the ring cavity. The proposed fiber laser can operate with two typical lasing wavelength spacing of 1.60 and 3.27 nm with a signal to noise ratio (SNR) over 30 dB. The temporal stability of laser output was also investigated.

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“…Many tech niques have been reported for multi wavelength gen eration in room temperature which are mainly based on four wave mixing (FWM), stimulated Brillouin scattering (SBS) and spectral slicing [6][7][8]. Recently, multi wavelength operation was also shown in semi conductor optical amplifier (SOA) cavities [9][10][11][12]. Multi wavelength oscillation in an SOA is possible because of its broad gain spectrum and heterogeneous spectral broadening.…”

Section: Introductionmentioning

confidence: 99%

Multi-wavelength fiber laser based on nonlinear polarization rotation in semiconductor optical amplifier and photonic crystal fiber

et al. 2012

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A nonlinear polarization rotation (NPR) based multi wavelength laser source is demonstrated using a semiconductor optical amplifier (SOA) and photonic crystal fiber (PCF). The SOA acts as not only the gain medium but also the phase retarder for multi wavelength oscillation in conjunction with an isolator. The incorporation of PCF improves the NPR effect and thus assists in the multiwavelength generation. The wavelength spacing reduces from 4.82 to 2.76 nm as the PCF length increases from 50 to 100 m. With a 100 m long PCF, the proposed laser produces at least 42 lasing wavelengths with optical signal to noise ratio of more than 10 dB.

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Stable SOA-based multi-wavelength fiber ring laser using Sagnac loop mirror incorporating a high-birefringence photonic crystal fiber

Cited by 23 publications

References 19 publications

A dual-pass Mach–Zehnder interferometer filter using a TCF loop mirror for double-wavelength fiber lasers

A dual-pass Mach–Zehnder interferometer filter using a TCF loop mirror for double-wavelength fiber lasers

Multiwavelength erbium-doped fiber laser using twin-core photonic crystal fiber

Multi-wavelength fiber laser based on nonlinear polarization rotation in semiconductor optical amplifier and photonic crystal fiber

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