External-Cavity Semiconductor Laser With Bragg Grating in Multimode Fiber

Yu, Honggang; Xu, Chang‐Qing; Wang, Yong; Wójcik, J.; Peng, Zhilin; Mascher, P.

doi:10.1109/lpt.2004.834543

Cited by 8 publications

(2 citation statements)

References 5 publications

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“…Similar to other tunable lasers in operation, FBG lasers were first demonstrated for telecommunication applications [4][5][6][7][8]. However, FBG lasers possess a number of unique advantages for chemical sensing.…”

Section: Introductionmentioning

confidence: 99%

Piezo-electric tunable fiber Bragg grating diode laser for chemical sensing using wavelength modulation spectroscopy

Buric¹,

Falk²,

Chen³

et al. 2006

Opt. Express

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This paper demonstrates, for the first time to our best knowledge, the application of a tunable external-cavity fiber Bragg grating diode laser in spectroscopic chemical sensing. A tunable fiber Bragg grating external-cavity semiconductor laser is demonstrated with over 10 nm of tuning range. A piezoactuator was implemented to stretch the grating for rapid wavelength tuning of the laser. The application of such low-cost tunable FBG lasers in spectroscopic chemical sensing was demonstrated in acetylene gas with a wavelength modulation spectroscopy technique.

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Section: Introductionmentioning

confidence: 99%

Piezo-electric tunable fiber Bragg grating diode laser for chemical sensing using wavelength modulation spectroscopy

Buric¹,

Falk²,

Chen³

et al. 2006

Opt. Express

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show abstract

“…Obviously the MMFBG is advantageous in coupling with the laser diode owing to large core size of the MMF. In the FBG-tuned diode lasers, MMFBG were used to replace the single-mode FBG [81,82]. The applications of the MMFBG in the vertical-cavity surface-emitting lasers (VCSEL) and external-cavity semiconductor lasers (ECSL) have been demonstrated experimentally [81,82].…”

Section: Multimode Fiber Bragg Gratingmentioning

confidence: 99%

Periodic structure in graded-index multimode fiber

Su¹

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13 2.1 Overview 2.2 Graded-index multimode fiber 2.3 Vector modes of parabolic-index multimode fiber 2.4 Review of coupled-mode theory 2.5 Phase matching of mode coupling 2.6 Formation of periodic structures in GRIN MMF 2.6.1 Photosensitivity and photo-induced grating 2.6.2 CO2 laser method 2.6.3 Periodic microbending 2.7 Review of periodic structures in GRIN MMF 2.7.1 Multimode fiber Bragg grating 2.7.2 LPG in GRIN MMF 2.7.3 GRIN MMF with Periodic Microbend CHAPTER 3 BRAGG GRATING IN GRADED-INDEX MULTIMODE FIBER 48 3.1 Overview 3.2 Fabrication 3.3 Spectral analysis 53 3.4 Mode Coupling in an MMFBG 60 3.5 Sensitivity characteristics of an MMFBG 65 3.6 Conclusions 69 CHAPTER 4 LONG PERIOD GRATING IN GRADED-INDEX MULTIMODE FIBER 71 4.1 Overview 71 4.2 Fabrication 73 1 ATTENTION: The Singapore Copyright Act applies to the use of this document. Nanyang Technological University Library TABLE OF CONTENTS 4.3 Mode coupling 4.4 Properties of MMF LPG 4.5 Sensing applications of the MMF LPG 4.5.1 Strain sensor 4.5.2 Chemical Sensor 4.6 Conclusions CHAPTER 5 PERIODIC MICROBEND IN GRADED-INDEX MULTIMODE FIBER 97 5.1 Overview 5.2 Periodicity of GRIN MMF 5.3 Theory of microbend-induced mode coupling 5.4 Mode scrambler based on periodic microbend 5.5 Near field images 5.6 Fiber microbend sensors 5.6.1 Generic fiber microbend sensor 5.6.2 FBG incorporated Microbend sensors 5.7 Conclusions CHAPTER 6 APPLICATIONS OF MMFBG IN ERBIUM-DOPED FIBER LASERS 139 6.1 Overview 6.2 Erbium-doped fiber laser 141 6.3 Microbending scheme 143 6.3.1 Principle of operation 143 6.3.2 Experimental results and discussions 149 6.4 Alignment scheme 153 6.4.1 Principle of operation 154 6.4.2 Experimental results and discussions 161 6.5 Conclusions 166 CHAPTER 7 CONCLUSIONS AND RECOMMENDED FUTURE WORKS 168 7.1 Conclusions 168 7.2 Recommended future work

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Wavelength locking of External Cavity Semiconductor Lasers with Multimode Fiber Bragg Grating

Wang²,

Xu³

2005 Pacific Rim Conference on Lasers &Amp;amp; Electro-Optics

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External-Cavity Semiconductor Laser With Bragg Grating in Multimode Fiber

Cited by 8 publications

References 5 publications

Piezo-electric tunable fiber Bragg grating diode laser for chemical sensing using wavelength modulation spectroscopy

Piezo-electric tunable fiber Bragg grating diode laser for chemical sensing using wavelength modulation spectroscopy

Periodic structure in graded-index multimode fiber

Wavelength locking of External Cavity Semiconductor Lasers with Multimode Fiber Bragg Grating

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