Wide temperature (-20/spl deg/C-95/spl deg/C) operation of an uncooled 2.5-Gb/s 1300-nm DFB laser

Silver, M.; Booij, W.E.; Malik, Shazia; Galbraith, A.; Uppal, S.; McBrien, R.F.; Berry, G.; Ryder, P.D.; Chandler, Simon; Atkin, D.M.; Chan, Sze-Chun; Harding, R.; Ash, R.M.

doi:10.1109/lpt.2002.1003078

Cited by 17 publications

(4 citation statements)

References 8 publications

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“…Having the ability of high speed modulation, SLDs become an excellent option for WDM systems. However, a major obstacle preventing closer WDM channel spacing is the drift of emission wavelength with temperature variation [12][13][14][15][16][17][18][19][20][21]. Therefore, with the development of dense WDM (DWDM) systems, lasers with narrow linewidth, high sidemode suppressed ratio (SMSR), low chirp, low cost, fast response, and stable dynamic single-mode operation are indispensable [1][2][3][4][5][6][7][8][9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

“…However, their lasing wavelengths are affected with temperature (e.g., 100 pm/K) and injection current (e.g., 10 pm/mA) [9,10,13,16,21]. Therefore, accurate temperature controller and wavelength-locking devices should be used to avoid optical cross-talks between the adjacent channels originated from wavelength shift, especially in DWDM systems.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, precise adjustment of the Bragg wavelength in FG is easier in comparison to the emission wavelength of DFB lasers. The main advantages of a SLD with external FG resonator are high-speed direct modulation with low chirping effect, enhanced wavelength stability, and relatively cost effective [6,9,13,16,21,[23][24][25][26][27][28][29][30].…”

Section: Introductionmentioning

confidence: 99%

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Optimizing the external optical cavity parameters for performance improvement of a fiber grating Fabry–Perot laser

Hisham

Abas

Mahdiraji

et al. 2015

Opt Rev

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The effects of the external optical cavity parameters (external optical cavity length (L ext ), amplitude coupling (C o ) and anti-reflection coating (ARC) reflectivity coefficients) on the noise and modulation spectra of a fiber grating Fabry-Perot laser are numerically analyzed for designing a laser that operates in strong feedback regime (Regime V). Fiber Bragg grating (FBG) is used as a wavelength selective element to control the properties of the laser output by controlling the external optical feedback (OFB) level. The study is performed by modifying a set of rate equations that are solved by considering the effects of external OFB and ambient temperature (T) variations. We proposed a model to calculate the temperature dependence (TD) of laser characteristics according to the TD of laser parameters. An accurate analytical expression for the TD of threshold carrier density (N th,fe ) has been derived. The TD of N th,fe was calculated according to the TD of laser cavity parameters instead of using well-known empirical Pankove relationship via the use of characteristics temperature (T o ) and current (I o ). Results show that the optimum external fiber length (L ext ) is 3.1 cm. Also, it is shown that ARC with reflectivity value of 1 9 10 -2 is sufficient for the laser to operate at low noise, good modulation response, and low fabrication complexity.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Optimizing the external optical cavity parameters for performance improvement of a fiber grating Fabry–Perot laser

Hisham

Abas

Mahdiraji

et al. 2015

Opt Rev

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“…[4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20] In this laser, the lasing wavelength is determine only by the Bragg wavelength of the fiber grating (FG) and this Bragg wavelength has a small temperature dependence of about 10 pm/K, [4][5][6]8,16,17,21) which is about 1/10 of that of the conventional DFB laser and has no dependence on the injection current. [22][23][24][25][26] As a result, FGFP laser can be used without a temperature controller and a wavelength locking device. [22][23][24][25][26] As a result, FGFP laser can be used without a temperature controller and a wavelength locking device.…”

Section: Introductionmentioning

confidence: 99%

Characterization of small-signal intensity modulation of single-mode fiber grating Fabry-Perot laser source

Hisham

Abas

Mahdiraji

et al. 2012

OPT REV

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A comprehensive study on the small-signal intensity modulation (IM) characteristics of a fiber grating Fabry-Perot (FGFP) laser is numerically investigated. The effect of external optical feedback (OFB), temperature, injection current, cavity volume, nonlinear gain compression factor, and fiber grating (FG) parameters on IM characteristics are presented. The temperature dependence (TD) of IM is calculated according to the TD of laser cavity parameters instead of using the well-known Parkove relationship. It has been shown that the optimum external fiber length (L ext ) is 3.1 cm. The optimum range of working temperature for FGFP laser is between 23 to 27 C. We also show that by increasing the laser injection current from 10 to 60 mA, the IM peak amplitude decreased from 6.3 to 0.2 dB and the relaxationoscillation frequency (ROF) is shifted from 1.2 GHz towards higher frequency of 5.48 GHz. In addition, the AR coating reflectivity and gain compression factor have no significant effect on the IM. The study indicates that a stable operation and excellent modulation characteristic can be obtained after optimization process.

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Vertical Cavities and Micro-Ring Resonators

Alexandropoulos

Scheuer

Adams

2012

Semiconductor Modeling Techniques

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Wide temperature (-20/spl deg/C-95/spl deg/C) operation of an uncooled 2.5-Gb/s 1300-nm DFB laser

Cited by 17 publications

References 8 publications

Optimizing the external optical cavity parameters for performance improvement of a fiber grating Fabry–Perot laser

Optimizing the external optical cavity parameters for performance improvement of a fiber grating Fabry–Perot laser

Characterization of small-signal intensity modulation of single-mode fiber grating Fabry-Perot laser source

Vertical Cavities and Micro-Ring Resonators

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