High performance single frequency fiber grating-based erbium/ytterbium-codoped fiber lasers

Loh, W.H.; Samson, Bryce; Dong, Liang; Cowle, G.J.; Hsu, Kevin

doi:10.1109/50.654992

Cited by 128 publications

(35 citation statements)

References 22 publications

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“…An FBG can be effectively fabricated in an EDFL because of the high photosensitivity that results from the germanium doping of the core. An output power of 4 mW, a linewidth of 18 kHz and a RIN peak of −118 dB/Hz have been reported for an Er/Yb-doped phosphosilicate fiber DFB laser [4]. However, the fiber structure was slightly complicated for FBG fabrication because germanium cannot be included in its core [7].…”

Section: Introductionmentioning

confidence: 99%

“…A λ/4-shifted DFB fiber laser is a very attractive device for dense wavelengthdivision multiplexing (DWDM) systems and sensing applications due to its robust single-mode operation, narrow linewidth, fiber compatibility, and ease of fabrication [1,2,3,4]. The first λ/4-shifted DFB fiber laser was demonstrated in 1994 and used an Er/Yb-doped phosphosilicate fiber and a thermally introduced λ/4−shift grating [1].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A CW, polarization-maintaining .LAMBDA./4-shifted DFB Er-doped fiber laser at 1.54.MU.m

Suzuki

Takahashi

Yoshida

2007

IEICE Electron. Express

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Abstract:We describe a polarization-maintaining (PM) λ/4-shifted DFB Er-doped fiber laser (EDFL), in which optical pulsation effects caused by Er 3+ ion-pairs were successfully removed by co-doping erbium fiber with 12 wt% aluminum. Stable CW operation was realized at a pump power of 100 mW. The laser exhibited single longitudinalmode oscillation with a single polarization. The output power, linewidth of the longitudinal mode, and RIN at the relaxation oscillation frequency were 0.5 mW, 82 kHz, and −79 dB/Hz at a pump power of 100 mW, respectively. Stable operation was also obtained at a pump power of 140 mW, where the above values were improved to 0.8 mW, 43 kHz, and −92 dB/Hz, respectively. Keywords: distributed feedback lasers, erbium-doped fiber, optical fiber lasers Classification: Photonics devices, circuits, and systems [11] L. Luo and P. L. Chu, "Suppression of self-pulsing in an erbium-doped fiber laser," Opt. Lett., vol. 22, no. 15, pp. 1174-1176, Aug. 1997 Z. E. Harutjunian, W. H. Loh, R. I. Laming, and D. N. Payne, "Single polarisation twisted distributed feedback fibre laser," Electron. Lett., vol. 32, no. 4, pp. 346-348, Feb. 1996.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A CW, polarization-maintaining .LAMBDA./4-shifted DFB Er-doped fiber laser at 1.54.MU.m

Suzuki

Takahashi

Yoshida

2007

IEICE Electron. Express

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“…The wavelength resolution of a conventional optical spectrum analyzer is 0.1 nm; thus, a self-heterodyne measurement setup is needed to measure the extremely narrow linewidth [25]. The resolution of the self-heterodyne measurement setup is determined by optical fiber delay line length, L, where the delay time, τ delay = n g /c, is~5 μs/km × L km.…”

Section: Spectral Linewidth Measurementmentioning

confidence: 99%

Distributed Intrusion Sensor Using DFB Laser with Optical Feedback and Saturable Absorber

Choi

2018

Journal of Sensors

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Characteristics of a distributed intrusion sensor using a coherent DFB laser diode with an external optical feedback and saturable absorber were experimentally investigated. The stimulus at a location of 2 km using a PZT transducer placed the location of a simulated intruder in Φ-OTDR trace after averaging 32 times. Field trials demonstrated the detection of a vehicle and a pedestrian crossing above the sensing line and a loop in a burial depth of 50 cm. This distributed intrusion sensor using a coherent DFB laser diode as the light source had the advantages of a simple structure and intruder detection capability at the underground burial location.

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“…These problems are avoided by controlling the laser to oscillate at a single frequency. Single-mode lasing is obtained when the spectral spacing between the modes, the free spectral range, is larger than the bandwidth of the optical gain (3)(4)(5). Although they are intriguing miniaturized lasers (6-11), individual semiconductor nanowires would need to be as short as a couple of microns to lase at a single optical frequency because of their relatively broad gain profile (>10 nm at room temperature) (12,13).…”

mentioning

confidence: 99%

Cleaved-coupled nanowire lasers

Gao

Andrews

et al. 2013

Proc. Natl. Acad. Sci. U.S.A.

122

103

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The miniaturization of optoelectronic devices is essential for the continued success of photonic technologies. Nanowires have been identified as potential building blocks that mimic conventional photonic components such as interconnects, waveguides, and optical cavities at the nanoscale. Semiconductor nanowires with high optical gain offer promising solutions for lasers with small footprints and low power consumption. Although much effort has been directed toward controlling their size, shape, and composition, most nanowire lasers currently suffer from emitting at multiple frequencies simultaneously, arising from the longitudinal modes native to simple Fabry-Pérot cavities. Cleaved-coupled cavities, two Fabry-Pérot cavities that are axially coupled through an air gap, are a promising architecture to produce single-frequency emission. The miniaturization of this concept, however, imposes a restriction on the dimensions of the intercavity gaps because severe optical losses are incurred when the cross-sectional dimensions of cavities become comparable to the lasing wavelength. Here we theoretically investigate and experimentally demonstrate spectral manipulation of lasing modes by creating cleaved-coupled cavities in gallium nitride (GaN) nanowires. Lasing operation at a single UV wavelength at room temperature was achieved using nanoscale gaps to create the smallest cleaved-coupled cavities to date. Besides the reduced number of lasing modes, the cleavedcoupled nanowires also operate with a lower threshold gain than that of the individual component nanowires. Good agreement was found between the measured lasing spectra and the predicted spectral modes obtained by simulating optical coupling properties. This agreement between theory and experiment presents design principles to rationally control the lasing modes in cleaved-coupled nanowire lasers.

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High performance single frequency fiber grating-based erbium/ytterbium-codoped fiber lasers

Cited by 128 publications

References 22 publications

A CW, polarization-maintaining .LAMBDA./4-shifted DFB Er-doped fiber laser at 1.54.MU.m

A CW, polarization-maintaining .LAMBDA./4-shifted DFB Er-doped fiber laser at 1.54.MU.m

Distributed Intrusion Sensor Using DFB Laser with Optical Feedback and Saturable Absorber

Cleaved-coupled nanowire lasers

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